1<!DOCTYPE html> 2<html lang="en"><head> 3 <meta charset="utf-8"> 4 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 5 <meta name="viewport" content="width=device-width, initial-scale=1"><!-- Begin Jekyll SEO tag v2.8.0 --> 6<title>JREâs Project Blog | A place to talk about my projects</title> 7<meta name="generator" content="Jekyll v3.10.0" /> 8<meta property="og:title" content="JREâs Project Blog" /> 9<meta name="author" content="Joseph R. Eoff" /> 10<meta property="og:locale" content="en_US" /> 11<meta name="description" content="A place to talk about my projects" /> 12<meta property="og:description" content="A place to talk about my projects" /> 13<link rel="canonical" href="https://josepheoff.github.io/" /> 14<meta property="og:url" content="https://josepheoff.github.io/" /> 15<meta property="og:site_name" content="JREâs Project Blog" /> 16<meta property="og:type" content="website" /> 17<meta name="twitter:card" content="summary" /> 18<meta property="twitter:title" content="JREâs Project Blog" />
19<script type="application/ld+json"> 20{"@context":"https://schema.org","@type":"WebSite","author":{"@type":"Person","name":"Joseph R. Eoff"},"description":"A place to talk about my projects","headline":"JREâs Project Blog","name":"JREâs Project Blog","publisher":{"@type":"Organization","logo":{"@type":"ImageObject","url":"https://josepheoff.github.io/assets/favicon.png"},"name":"Joseph R. Eoff"},"url":"https://josepheoff.github.io/"}</script>
20 21<!-- End Jekyll SEO tag --> 22<link rel="stylesheet" href="/assets/main.css"><link type="application/atom+xml" rel="alternate" href="https://josepheoff.github.io/feed.xml" title="JRE's Project Blog" />
vendor: 63 bytes, line 22
22<script async src="https://www.googletagmanager.com/gtag/js?id=
22G-0LJXHL944K
vendor: 12 bytes, line 22
22"></script>
23<script> 24 window['ga-disable-G-0LJXHL944K'] = window.doNotTrack === "1" || navigator.doNotTrack === "1" || navigator.doNotTrack === "yes" || navigator.msDoNotTrack === "1"; 25 window.dataLayer = window.dataLayer || []; 26 function gtag(){window.dataLayer.push(arguments);} 27 gtag('js', new Date()); 28 29 gtag('config', 'G-0LJXHL944K'); 30</script>
30 31</head> 32<body><header class="site-header" role="banner"> 33 34 <div class="wrapper"><a class="site-title" rel="author" href="/">JRE's Project Blog</a><nav class="site-nav"> 35 <input type="checkbox" id="nav-trigger" class="nav-trigger" /> 36 <label for="nav-trigger"> 37 <span class="menu-icon"> 38 <svg viewBox="0 0 18 15" width="18px" height="15px"> 39 <path d="M18,1.484c0,0.82-0.665,1.484-1.484,1.484H1.484C0.665,2.969,0,2.304,0,1.484l0,0C0,0.665,0.665,0,1.484,0 h15.032C17.335,0,18,0.665,18,1.484L18,1.484z M18,7.516C18,8.335,17.335,9,16.516,9H1.484C0.665,9,0,8.335,0,7.516l0,0 c0-0.82,0.665-1.484,1.484-1.484h15.032C17.335,6.031,18,6.696,18,7.516L18,7.516z M18,13.516C18,14.335,17.335,15,16.516,15H1.484 C0.665,15,0,14.335,0,13.516l0,0c0-0.82,0.665-1.483,1.484-1.483h15.032C17.335,12.031,18,12.695,18,13.516L18,13.516z"/> 40 </svg> 41 </span> 42 </label> 43 44 <div class="trigger"></div> 45 </nav></div> 46</header> 47<main class="page-content" aria-label="Content"> 48 <div class="wrapper"> 49 <div class="home"> 50<h2 class="post-list-heading">Posts</h2> 51 <ul class="post-list"><li><span class="post-meta">Sep 26, 2026</span> 52 <h3> 53 <a class="post-link" href="/posts/tripodcase"> 54 A leather carrying case for a portable tripod 55 </a> 56 </h3><p>Keeping a tripod handy while hiking.</p> 57 58<a class="post-preview" href="/posts/tripodcase"> 59 <img alt="A leather carrying case for a portable tripod" src="/assets/2026-09-26-tripodcase/1.jpg"> 60 </a></li><li><span class="post-meta">Aug 15, 2026</span> 61 <h3> 62 <a class="post-link" href="/posts/brasswoodsteel"> 63 Investigating brass pins and wooden scales for knives 64 </a> 65 </h3><p>Which breaks first, the wood or the brass?</p> 66 67<a class="post-preview" href="/posts/brasswoodsteel"> 68 <img alt="Investigating brass pins and wooden scales for knives" src="/assets/2026-08-15-brasswoodsteel/1.jpg"> 69 </a></li><li><span class="post-meta">Jul 29, 2026</span> 70 <h3> 71 <a class="post-link" href="/posts/newknife"> 72 Making a new knife instead of fixing an old one 73 </a> 74 </h3><p>Replacing things you broke while trying to fix them.</p> 75 76<a class="post-preview" href="/posts/newknife"> 77 <img alt="Making a new knife instead of fixing an old one" src="/assets/2026-07-29-newknife/12.jpg"> 78 </a></li><li><span class="post-meta">Jun 6, 2026</span> 79 <h3> 80 <a class="post-link" href="/posts/sewingmachineslidecover"> 81 How to keep the slide covers in place on your vintage sewing machine 82 </a> 83 </h3><p>Keeping the covers over the bobbinâs head.</p> 84 85<a class="post-preview" href="/posts/sewingmachineslidecover"> 86 <img alt="How to keep the slide covers in place on your vintage sewing machine" src="/assets/2026-06-06-sewingmachineslidecover/1.jpg"> 87 </a></li><li><span class="post-meta">Mar 14, 2026</span> 88 <h3> 89 <a class="post-link" href="/posts/kniferescue"> 90 Fixing up an old kitchen knife 91 </a> 92 </h3><p>When the blade is willing but the wood is weak.</p> 93 94<a class="post-preview" href="/posts/kniferescue"> 95 <img alt="Fixing up an old kitchen knife" src="/assets/2026-03-14-kniferescue/23.jpg"> 96 </a></li><li><span class="post-meta">Feb 17, 2026</span> 97 <h3> 98 <a class="post-link" href="/posts/didgeridoohickey"> 99 The didgeridoohickey - a simple stand for a didgeridoo 100 </a> 101 </h3><p>Keeping a didgeridoo handy to fight off sleep apnea.</p> 102 103<a class="post-preview" href="/posts/didgeridoohickey"> 104 <img alt="The didgeridoohickey - a simple stand for a didgeridoo" src="/assets/2026-02-17-didgeridoohickey/2.jpg"> 105 </a></li><li><span class="post-meta">Dec 26, 2025</span> 106 <h3> 107 <a class="post-link" href="/posts/jubilate-1161-3"> 108 The Telefunken Jubilate 1161 tube radio - Bluetooth adapter 109 </a> 110 </h3><p>Making a Bluetooth speaker out of the Jubilate 1161.</p> 111 112<a class="post-preview" href="/posts/jubilate-1161-3">
113 <img alt="The Telefunken Jubilate 1161 tube radio - Bluetooth adapter" src="/assets/2025-12-26-jubilate-1161-3/1.jpg"> 114 </a></li><li><span class="post-meta">Dec 24, 2025</span> 115 <h3> 116 <a class="post-link" href="/posts/jubilate-1161-2"> 117 The Telefunken Jubilate 1161 tube radio - Cleanup and renovation 118 </a> 119 </h3><p>Some things youâve just got to replace.</p> 120 121<a class="post-preview" href="/posts/jubilate-1161-2"> 122 <img alt="The Telefunken Jubilate 1161 tube radio - Cleanup and renovation" src="/assets/2025-12-24-jubilate-1161-2/5.jpg"> 123 </a></li><li><span class="post-meta">Oct 31, 2025</span> 124 <h3> 125 <a class="post-link" href="/posts/seasoundsbytheseashore"> 126 Sea sounds by the seashore -rescuing a bad recording of wave sounds 127 </a> 128 </h3><p>Sometimes a little Audacity can make up for not having a dead cat.</p> 129 130<a class="post-preview" href="/posts/seasoundsbytheseashore"> 131 <img alt="Sea sounds by the seashore -rescuing a bad recording of wave sounds" src="/assets/2025-10-31-seasoundsbytheseashore/1.png"> 132 </a></li><li><span class="post-meta">Aug 24, 2025</span> 133 <h3> 134 <a class="post-link" href="/posts/jubilate-1161-toc"> 135 The Telefunken Jubilate 1161 tube radio - Table of contents 136 </a> 137 </h3><p>Fixing up a radio for my brother-in-law.</p> 138 139<a class="post-preview" href="/posts/jubilate-1161-toc"> 140 <img alt="The Telefunken Jubilate 1161 tube radio - Table of contents" src="/assets/2025-08-24-jubilate-1161-1/1.jpg"> 141 </a></li><li><span class="post-meta">Aug 24, 2025</span> 142 <h3> 143 <a class="post-link" href="/posts/jubilate-1161-1"> 144 The Telefunken Jubilate 1161 tube radio - First look 145 </a> 146 </h3><p>When is a fuzzy-wuzzy big enough be to be called a dust bunny?</p> 147 148<a class="post-preview" href="/posts/jubilate-1161-1"> 149 <img alt="The Telefunken Jubilate 1161 tube radio - First look" src="/assets/2025-08-24-jubilate-1161-1/1.jpg"> 150 </a></li><li><span class="post-meta">Jul 27, 2025</span> 151 <h3> 152 <a class="post-link" href="/posts/isolatedvariac"> 153 An isolated variac for vintage radio repair 154 </a> 155 </h3><p>A little vintage safety for working with vintage equipment.</p> 156 157<a class="post-preview" href="/posts/isolatedvariac"> 158 <img alt="An isolated variac for vintage radio repair" src="/assets/2025-07-27-isolatedvariac/1.jpg"> 159 </a></li><li><span class="post-meta">May 18, 2025</span> 160 <h3> 161 <a class="post-link" href="/posts/pfaffingaround"> 162 Pfaffing around on a Sunday afternoon 163 </a> 164 </h3><p>A museum visit in Kaiserslautern, Germany.</p> 165 166<a class="post-preview" href="/posts/pfaffingaround"> 167 <img alt="Pfaffing around on a Sunday afternoon" src="/assets/2025-05-18-pfaffingaround/1.jpg"> 168 </a></li><li><span class="post-meta">Apr 19, 2025</span> 169 <h3> 170 <a class="post-link" href="/posts/morepulseoximeters"> 171 A list of inexpensive pulse oximeters for use with OSCAR 172 </a> 173 </h3><p>How many can we find?</p> 174 175<a class="post-preview" href="/posts/morepulseoximeters"> 176 <img alt="A list of inexpensive pulse oximeters for use with OSCAR" src="/assets/2025-04-19-morepulseoximeters/3.jpg"> 177 </a></li><li><span class="post-meta">Apr 6, 2025</span> 178 <h3> 179 <a class="post-link" href="/posts/pulseoximeter"> 180 Making use of an inexpensive pulse oximeter 181 </a> 182 </h3><p>Not a necessity, but certainly useful.</p> 183 184<a class="post-preview" href="/posts/pulseoximeter"> 185 <img alt="Making use of an inexpensive pulse oximeter" src="/assets/2025-04-06-pulseoximeter/1.jpg"> 186 </a></li><li><span class="post-meta">Mar 31, 2025</span> 187 <h3> 188 <a class="post-link" href="/posts/cpapmaskstraps"> 189 Making a more comfortable set of head gear for my mask 190 </a> 191 </h3><p>No stretch but soft.</p> 192 193<a class="post-preview" href="/posts/cpapmaskstraps"> 194 <img alt="Making a more comfortable set of head gear for my mask" src="/assets/2025-03-31-cpapmaskstraps/39.jpg"> 195 </a></li><li><span class="post-meta">Mar 24, 2025</span> 196 <h3> 197 <a class="post-link" href="/posts/cpap-toc"> 198 Managing sleep apnea with all my abilities 199 </a> 200 </h3><p>Where medical necessity meets hobby.</p> 201 202<a class="post-preview" href="/posts/cpap-toc"> 203 <img alt="Managing sleep apnea with all my abilities" src="/assets/2025-03-24-cpap-toc/1.jpg"> 204 </a></li><li><span class="post-meta">Mar 12, 2025</span> 205 <h3> 206 <a class="post-link" href="/posts/knifehandle"> 207 A new handle for a cheap knife 208 </a> 209 </h3><p>Fixing something when it doesnât matter if you mess it up.</p> 210 211<a class="post-preview" href="/posts/knifehandle"> 212 <img alt="A new handle for a cheap knife" src="/assets/2025-03-12-knifehandle/1.jpg"> 213 </a></li><li><span class="post-meta">Nov 22, 2024</span> 214 <h3> 215 <a class="post-link" href="/posts/vibratingshuttle-jersey-2"> 216 Sewing knit jersey material on a vintage straight stitch sewing machine - A simple sewing project using knit fabric sewn on a vibrating shuttle sewing machine 217 </a> 218 </h3><p>A simple project - if you can sew jersey fabric.</p> 219 220<a class="post-preview" href="/posts/vibratingshuttle-jersey-2"> 221 <img alt="Sewing knit jersey material on a vintage straight stitch sewing machine - A simple sewing project using knit fabric sewn on a vibrating shuttle sewing machine" src="/assets/2024-11-19-vibratingshuttle-jersey/11.jpg"> 222 </a></li><li><span class="post-meta">Nov 21, 2024</span> 223 <h3> 224 <a class="post-link" href="/posts/vibratingshuttle-jersey-1"> 225 Sewing knit jersey material on a vintage straight stitch sewing machine - Setting up a vibrating shuttle machine for sewing knit fabrics 226 </a> 227 </h3><p>Lighten up, it isnât difficult.</p> 228 229<a class="post-preview" href="/posts/vibratingshuttle-jersey-1"> 230 <img alt="Sewing knit jersey material on a vintage straight stitch sewing machine - Setting up a vibrating shuttle machine for sewing knit fabrics" src="/assets/2024-11-19-vibratingshuttle-jersey/12.jpg"> 231 </a></li><li><span class="post-meta">Nov 19, 2024</span> 232 <h3> 233 <a class="post-link" href="/posts/vibratingshuttle-jersey"> 234 Sewing knit jersey material on a vintage straight stitch sewing machine - Some background info 235 </a> 236 </h3><p>It canât be that hard, can it?</p> 237 238<a class="post-preview" href="/posts/vibratingshuttle-jersey"> 239 <img alt="Sewing knit jersey material on a vintage straight stitch sewing machine - Some background info" src="/assets/2024-11-19-vibratingshuttle-jersey/0.jpg"> 240 </a></li><li><span class="post-meta">Nov 19, 2024</span> 241 <h3> 242 <a class="post-link" href="/posts/vibratingshuttle-jersey-toc"> 243 Sewing knit jersey material on a vintage straight stitch sewing machine - Table of Contents 244 </a> 245 </h3><p>Thereâs more to tell than I expected.</p> 246 247<a class="post-preview" href="/posts/vibratingshuttle-jersey-toc"> 248 <img alt="Sewing knit jersey material on a vintage straight stitch sewing machine - Table of Contents" src="/assets/2024-11-19-vibratingshuttle-jersey/0.jpg"> 249 </a></li><li><span class="post-meta">Nov 3, 2024</span> 250 <h3> 251 <a class="post-link" href="/posts/kayser-shuttle"> 252 Modifying a Singer 27 shuttle for a Kayser model L vibrating shuttle sewing machine 253 </a> 254 </h3><p>When you canât get parts for an old machine.</p> 255 256<a class="post-preview" href="/posts/kayser-shuttle"> 257 <img alt="Modifying a Singer 27 shuttle for a Kayser model L vibrating shuttle sewing machine" src="/assets/2024-11-03-kayser-shuttle/5.jpg"> 258 </a></li><li><span class="post-meta">Sep 22, 2024</span> 259 <h3> 260 <a class="post-link" href="/posts/pfaff-284"> 261 Fishbone tangles on a rotary hook Pfaff sewing machine 262 </a> 263 </h3><p>When what looks like a thread tension problem is really something else.</p> 264 265<a class="post-preview" href="/posts/pfaff-284"> 266 <img alt="Fishbone tangles on a rotary hook Pfaff sewing machine" src="/assets/2024-09-22-pfaff-284/2.jpg"> 267 </a></li><li><span class="post-meta">Sep 21, 2024</span> 268 <h3> 269 <a class="post-link" href="/posts/howtosolder-flux"> 270 HowTo: Solder by hand - Flux and lead-free solder 271 </a> 272 </h3><p>When supposedly simple tasks turn complicated.</p> 273 274<a class="post-preview" href="/posts/howtosolder-flux"> 275 <img alt="HowTo: Solder by hand - Flux and lead-free solder" src="/assets/2024-09-21-howtosolder-flux/1.jpg"> 276 </a></li><li><span class="post-meta">Aug 27, 2024</span> 277 <h3> 278 <a class="post-link" href="/posts/eyeglassclip"> 279 Duplicating the pocket eyeglass clip 280 </a> 281 </h3><p>How many tools does it take?</p> 282 283<a class="post-preview" href="/posts/eyeglassclip"> 284 <img alt="Duplicating the pocket eyeglass clip" src="/assets/2024-08-27-eyeglassclip/23.jpg"> 285 </a></li><li><span class="post-meta">Jul 27, 2024</span> 286 <h3> 287 <a class="post-link" href="/posts/horizontal-thread-holder"> 288 A horizontal thread holder for a vintage sewing machine 289 </a> 290 </h3><p>Making things most folks would just buy.</p> 291 292<a class="post-preview" href="/posts/horizontal-thread-holder"> 293 <img alt="A horizontal thread holder for a vintage sewing machine" src="/assets/2024-07-27-horizontal-thread-holder/7.jpg"> 294 </a></li><li><span class="post-meta">Jun 6, 2024</span> 295 <h3> 296 <a class="post-link" href="/posts/phonecase3"> 297 A case for a Fairphone 3 - Prototype 298 </a> 299 </h3><p>Reconciling plans and reality.</p> 300 301<a class="post-preview" href="/posts/phonecase3"> 302 <img alt="A case for a Fairphone 3 - Prototype" src="/assets/2024-06-06-phonecase3/5.jpg"> 303 </a></li><li><span class="post-meta">Apr 3, 2024</span> 304 <h3> 305 <a class="post-link" href="/posts/pfaff297"> 306 Reassembling the upper thread tensioner on a Pfaff 297 sewing machine. 307 </a> 308 </h3><p>Surprise: Itâs broken!</p> 309 310<a class="post-preview" href="/posts/pfaff297"> 311 <img alt="Reassembling the upper thread tensioner on a Pfaff 297 sewing machine." src="/assets/2024-04-03-pfaff297/1.jpg"> 312 </a></li><li><span class="post-meta">Mar 17, 2024</span> 313 <h3> 314 <a class="post-link" href="/posts/phonecase2"> 315 A case for a Fairphone 3 - Plan 316 </a> 317 </h3><p>Making measurements and drawing plans.</p> 318 319<a class="post-preview" href="/posts/phonecase2"> 320 <img alt="A case for a Fairphone 3 - Plan" src="/assets/2024-03-17-phonecase2/1.png"> 321 </a></li><li><span class="post-meta">Mar 10, 2024</span> 322 <h3> 323 <a class="post-link" href="/posts/phonecase1"> 324 A case for a Fairphone 3 - Concept 325 </a> 326 </h3><p>Begin at the beginning.</p> 327 328<a class="post-preview" href="/posts/phonecase1"> 329 <img alt="A case for a Fairphone 3 - Concept" src="/assets/2024-03-10-phonecase/1.jpg"> 330 </a></li><li><span class="post-meta">Mar 10, 2024</span> 331 <h3> 332 <a class="post-link" href="/posts/phonecase-toc"> 333 A case for a Fairphone 3 - Table of Contents 334 </a> 335 </h3><p>A DIY leather sewing project from start to finish.</p> 336 337<a class="post-preview" href="/posts/phonecase-toc"> 338 <img alt="A case for a Fairphone 3 - Table of Contents" src="/assets/2024-03-10-phonecase/1.jpg"> 339 </a></li><li><span class="post-meta">Feb 25, 2024</span> 340 <h3> 341 <a class="post-link" href="/posts/moresharpeningstones"> 342 A holder for some more sharpening stones 343 </a> 344 </h3><p>
344Showing how I did something the second time around.</p> 345 346<a class="post-preview" href="/posts/moresharpeningstones"> 347 <img alt="A holder for some more sharpening stones" src="/assets/2024-02-25-moresharpeningstones/1.jpg"> 348 </a></li><li><span class="post-meta">Feb 24, 2024</span> 349 <h3> 350 <a class="post-link" href="/posts/teapot"> 351 A handle for a tea strainer 352 </a> 353 </h3><p>Cleaning a teapot the long way around.</p> 354 355<a class="post-preview" href="/posts/teapot"> 356 <img alt="A handle for a tea strainer" src="/assets/2024-02-24-teapot/9.jpg"> 357 </a></li><li><span class="post-meta">Feb 18, 2024</span> 358 <h3> 359 <a class="post-link" href="/posts/sharpeningstones"> 360 Sharpening stones for the repair cafe 361 </a> 362 </h3><p>Donating more than just time to a worthy cause.</p> 363 364<a class="post-preview" href="/posts/sharpeningstones"> 365 <img alt="Sharpening stones for the repair cafe" src="/assets/2024-02-18-sharpeningstones/6.jpg"> 366 </a></li><li><span class="post-meta">Feb 10, 2024</span> 367 <h3> 368 <a class="post-link" href="/posts/motorcontrol18"> 369 A sewing machine motor speed control - The sound of a functional snubber 370 </a> 371 </h3><p>The answer to a non-Zen non-koan.</p> 372 373<a class="post-preview" href="/posts/motorcontrol18"> 374 <img alt="A sewing machine motor speed control - The sound of a functional snubber" src="/assets/2024-02-10-motorcontrol18/2.jpg"> 375 </a></li><li><span class="post-meta">Jan 25, 2024</span> 376 <h3> 377 <a class="post-link" href="/posts/tripod"> 378 A vintage tripod to make pictures of my vintage sewing machines 379 </a> 380 </h3><p>One from two instead of two for one.</p> 381 382<a class="post-preview" href="/posts/tripod"> 383 <img alt="A vintage tripod to make pictures of my vintage sewing machines" src="/assets/2024-01-25-tripod/1.jpg"> 384 </a></li><li><span class="post-meta">Jan 13, 2024</span> 385 <h3> 386 <a class="post-link" href="/posts/motorcontrol17"> 387 A sewing machine motor speed control - A snubber for Bigfoot 388 </a> 389 </h3>
390<script type="text/x-mathjax-config"> 391 MathJax.Hub.Config({ 392 tex2jax: { 393 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 394 processEscapes: true 395 } 396 }); 397</script>
397 398
399<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 400</script>
400 401
402<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 403</script>
403 404 405<p>Protecting the flyback diode that protects the MOSFET.</p> 406 407<a class="post-preview" href="/posts/motorcontrol17"> 408 <img alt="A sewing machine motor speed control - A snubber for Bigfoot" src="/assets/2024-01-13-motorcontrol17/3.png"> 409 </a></li><li><span class="post-meta">Jan 4, 2024</span> 410 <h3> 411 <a class="post-link" href="/posts/motorcontrol16"> 412 A sewing machine motor speed control - When you really need an engineer's help. 413 </a> 414 </h3><p>Kerplunk. Kablooey.</p> 415 416<a class="post-preview" href="/posts/motorcontrol16"> 417 <img alt="A sewing machine motor speed control - When you really need an engineer's help." src="/assets/2024-01-04-motorcontrol16/1.jpg"> 418 </a></li><li><span class="post-meta">Dec 30, 2023</span> 419 <h3> 420 <a class="post-link" href="/posts/howtosolder-18-bettersoldersucker"> 421 HowTo: Solder by hand - A better solder sucker 422 </a> 423 </h3><p>A modern replacement for the old fashioned solder sucker ball.</p> 424 425<a class="post-preview" href="/posts/howtosolder-18-bettersoldersucker"> 426 <img alt="HowTo: Solder by hand - A better solder sucker" src="/assets/2023-12-30-howtosolder-18-soldersucker/1.jpg"> 427 </a></li><li><span class="post-meta">Nov 12, 2023</span> 428 <h3> 429 <a class="post-link" href="/posts/motorcontrol14"> 430 A sewing machine motor speed control - A look at the insides of the finished control 431 </a> 432 </h3><p>A lurid crawl through Bigfootâs entrails.</p> 433 434<a class="post-preview" href="/posts/motorcontrol14"> 435 <img alt="A sewing machine motor speed control - A look at the insides of the finished control" src="/assets/2023-11-15-motorcontrol14/1.jpg"> 436 </a></li><li><span class="post-meta">Nov 10, 2023</span> 437 <h3> 438 <a class="post-link" href="/posts/motorcontrol13"> 439 A sewing machine motor speed control - Functional 440 </a> 441 </h3><p>A look at a functional DIY sewing machine motor speed control.</p> 442 443<a class="post-preview" href="/posts/motorcontrol13"> 444 <img alt="A sewing machine motor speed control - Functional" src="/assets/2023-11-10-motorcontrol13/1.jpg"> 445 </a></li><li><span class="post-meta">Oct 21, 2023</span> 446 <h3> 447 <a class="post-link" href="/posts/pfaff-801-motorcontrol"> 448 Replacing the broken controller on a Pfaff 801 Hobbymatic sewing machine 449 </a> 450 </h3><p>Old isnât always better, especially when it comes to electronics.</p> 451 452<a class="post-preview" href="/posts/pfaff-801-motorcontrol"> 453 <img alt="Replacing the broken controller on a Pfaff 801 Hobbymatic sewing machine" src="/assets/2023-10-21-pfaff-801-motorcontrol/3.jpg"> 454 </a></li><li><span class="post-meta">Aug 31, 2023</span> 455 <h3> 456 <a class="post-link" href="/posts/motorcontrol12"> 457 A sewing machine motor speed control - Nearly there 458 </a> 459 </h3><p>Got the hardware. Whereâs the software?</p> 460 461<a class="post-preview" href="/posts/motorcontrol12"> 462 <img alt="A sewing machine motor speed control - Nearly there" src="/assets/2023-08-31-motorcontrol12/1.jpg"> 463 </a></li><li><span class="post-meta">Aug 14, 2023</span> 464 <h3> 465 <a class="post-link" href="/posts/pfaff-30-31-7-reassembly"> 466 The Pfaff 30-31 sewing machine - Reassembly 467 </a> 468 </h3><p>Putting back all the things I took off.</p> 469 470<a class="post-preview" href="/posts/pfaff-30-31-7-reassembly"> 471 <img alt="The Pfaff 30-31 sewing machine - Reassembly" src="/assets/2023-08-14-pfaff-30-31-7-reassembly/71.jpg"> 472 </a></li><li><span class="post-meta">Jul 25, 2023</span> 473 <h3> 474 <a class="post-link" href="/posts/blackforest-sewingmachines"> 475 Sewing machines of the Black Forest 476 </a> 477 </h3><p>What can you discover from a quick look?</p> 478 479<a class="post-preview" href="/posts/blackforest-sewingmachines"> 480 <img alt="Sewing machines of the Black Forest" src="/assets/2023-07-25-blackforest-sewingmachines/1.jpg"> 481 </a></li><li><span class="post-meta">Jul 5, 2023</span> 482 <h3> 483 <a class="post-link" href="/posts/pfaff-30-31-6-painting"> 484 The Pfaff 30-31 sewing machine - Repainting and applying decals 485 </a> 486 </h3><p>Looking good.</p> 487 488<a class="post-preview" href="/posts/pfaff-30-31-6-painting"> 489 <img alt="The Pfaff 30-31 sewing machine - Repainting and applying decals" src="/assets/2023-07-05-pfaff-30-31-6-painting/11.jpg"> 490 </a></li><li><span class="post-meta">Jun 8, 2023</span> 491 <h3>
492 <a class="post-link" href="/posts/pfaff30-31-5-stripping"> 493 The Pfaff 30-31 sewing machine - Stripping the paint - carefully 494 </a> 495 </h3><p>Mind the lead.</p> 496 497<a class="post-preview" href="/posts/pfaff30-31-5-stripping"> 498 <img alt="The Pfaff 30-31 sewing machine - Stripping the paint - carefully" src="/assets/2023-06-08-pfaff30-31-5-stripping/1.jpg"> 499 </a></li><li><span class="post-meta">May 23, 2023</span> 500 <h3> 501 <a class="post-link" href="/posts/privileg-1510"> 502 Privileg 1510 sewing machine - A favor for a friend 503 </a> 504 </h3><p>The book is right, even when it is wrong.</p> 505 506<a class="post-preview" href="/posts/privileg-1510"> 507 <img alt="Privileg 1510 sewing machine - A favor for a friend" src="/assets/2023-05-23-privileg-1510/1.jpg"> 508 </a></li><li><span class="post-meta">May 19, 2023</span> 509 <h3> 510 <a class="post-link" href="/posts/pfaff30-31-4-teardown"> 511 The Pfaff 30-31 sewing machine - Disassembling the machine 512 </a> 513 </h3><p>Removing all the bits and pieces before stripping the paint.</p> 514 515<a class="post-preview" href="/posts/pfaff30-31-4-teardown"> 516 <img alt="The Pfaff 30-31 sewing machine - Disassembling the machine" src="/assets/2023-05-19-pfaff30-31-4-teardown/2.jpg"> 517 </a></li><li><span class="post-meta">May 16, 2023</span> 518 <h3> 519 <a class="post-link" href="/posts/pfaff30-31-3-cabinet"> 520 The Pfaff 30-31 sewing machine - Refinishing the cabinet 521 </a> 522 </h3><p>Unlocking the beauty in an old oak veneer sewing cabinet.</p> 523 524<a class="post-preview" href="/posts/pfaff30-31-3-cabinet"> 525 <img alt="The Pfaff 30-31 sewing machine - Refinishing the cabinet" src="/assets/2023-05-17-pfaff30-31-3-cabinet/2.jpg"> 526 </a></li><li><span class="post-meta">Apr 23, 2023</span> 527 <h3> 528 <a class="post-link" href="/posts/pfaff30-31-2-working"> 529 The Pfaff 30-31 sewing machine - Fixing a small problem 530 </a> 531 </h3><p>Jams are for music and toast, not sewing machines.</p> 532 533<a class="post-preview" href="/posts/pfaff30-31-2-working"> 534 <img alt="The Pfaff 30-31 sewing machine - Fixing a small problem" src="/assets/2023-04-23-pfaff30-31-2-working/13.jpg"> 535 </a></li><li><span class="post-meta">Apr 16, 2023</span> 536 <h3> 537 <a class="post-link" href="/posts/pfaff30-31-toc"> 538 The Pfaff 30-31 sewing machine - Table of Contents 539 </a> 540 </h3><p>Returning a favor.</p> 541 542<a class="post-preview" href="/posts/pfaff30-31-toc"> 543 <img alt="The Pfaff 30-31 sewing machine - Table of Contents" src="/assets/2023-04-16-pfaff30-31-1/8.jpg"> 544 </a></li><li><span class="post-meta">Apr 16, 2023</span> 545 <h3> 546 <a class="post-link" href="/posts/pfaff30-31-1"> 547 The Pfaff 30-31 sewing machine - What have we here? 548 </a> 549 </h3><p>Well darn it! (Not.)</p> 550 551<a class="post-preview" href="/posts/pfaff30-31-1"> 552 <img alt="The Pfaff 30-31 sewing machine - What have we here?" src="/assets/2023-04-16-pfaff30-31-1/8.jpg"> 553 </a></li><li><span class="post-meta">Apr 15, 2023</span> 554 <h3> 555 <a class="post-link" href="/posts/motorcontrol11"> 556 A sewing machine motor speed control - Mounting brackets 557 </a> 558 </h3><p>Sawing, drilling, sanding and tapping.</p> 559 560<a class="post-preview" href="/posts/motorcontrol11"> 561 <img alt="A sewing machine motor speed control - Mounting brackets" src="/assets/2023-04-15-motorcontrol11/13.jpg"> 562 </a></li><li><span class="post-meta">Apr 7, 2023</span> 563 <h3> 564 <a class="post-link" href="/posts/motorcontrol10"> 565 A sewing machine motor speed control - Making the box 566 </a> 567 </h3><p>Drilling, sawing, and filing.</p> 568 569<a class="post-preview" href="/posts/motorcontrol10"> 570 <img alt="A sewing machine motor speed control - Making the box" src="/assets/2023-04-07-motorcontrol10/1.jpg"> 571 </a></li><li><span class="post-meta">Feb 22, 2023</span> 572 <h3> 573 <a class="post-link" href="/posts/rfcamera7"> 574 Photographing the invisible - adding a photo scanner to the GUI 575 </a> 576 </h3><p>Progress and a mystery.</p> 577 578<a class="post-preview" href="/posts/rfcamera7"> 579 <img alt="Photographing the invisible - adding a photo scanner to the GUI" src="/assets/2023-02-22-rfcamera7/3.png"> 580 </a></li><li><span class="post-meta">Feb 7, 2023</span> 581 <h3> 582 <a class="post-link" href="/posts/motorcontrol9"> 583 A sewing machine motor speed control - Putting things together 584 </a> 585 </h3><p>No smoke, but not quite done.</p> 586 587<a class="post-preview" href="/posts/motorcontrol9"> 588 <img alt="A sewing machine motor speed control - Putting things together" src="/assets/2023-02-07-motorcontrol9/1.jpg"> 589 </a></li><li><span class="post-meta">Jan 8, 2023</span> 590 <h3> 591 <a class="post-link" href="/posts/earpads"> 592 Headset earpads - don't fear the imperfection. 593 </a> 594 </h3><p>If you donât try, youâll never get better.</p> 595 596<a class="post-preview" href="/posts/earpads"> 597 <img alt="Headset earpads - don't fear the imperfection." src="/assets/2023-01-08-earpads/1.jpg"> 598 </a></li><li><span class="post-meta">Dec 31, 2022</span> 599 <h3> 600 <a class="post-link" href="/posts/motorcontrol8"> 601 A sewing machine motor speed control - A long over due update 602 </a> 603 </h3><p>Collecting parts and drawing schematics.</p> 604 605<a class="post-preview" href="/posts/motorcontrol8"> 606 <img alt="A sewing machine motor speed control - A long over due update" src="/assets/2022-12-31-motorcontrol8/layout.png"> 607 </a></li><li><span class="post-meta">Dec 17, 2022</span> 608 <h3> 609 <a class="post-link" href="/posts/pfaff-k-8-secrets"> 610 The Pfaff model K sewing machine - Secrets of the vibrating shuttle 611 </a> 612 </h3><p>The first rule of the vibrating shuttle oiler is that you donât talk about the vibrating shuttle oiler.</p> 613 614<a class="post-preview" href="/posts/pfaff-k-8-secrets"> 615 <img alt="The Pfaff model K sewing machine - Secrets of the vibrating shuttle" src="/assets/2022-12-17-pfaff-k-8-secrets/1.jpg"> 616 </a></li><li><span class="post-meta">Dec 16, 2022</span> 617 <h3> 618 <a class="post-link" href="/posts/pfaff-k-7-base"> 619 The Pfaff model K sewing machine - Beech wood, shellac, and brass 620 </a> 621 </h3><p>A quick look at a couple of weeks of hobby time.</p> 622 623<a class="post-preview" href="/posts/pfaff-k-7-base"> 624 <img alt="The Pfaff model K sewing machine - Beech wood, shellac, and brass" src="/assets/2022-12-16-pfaff-k-7-base/11.jpg"> 625 </a></li><li><span class="post-meta">Nov 27, 2022</span> 626 <h3> 627 <a class="post-link" href="/posts/pfaff-k-6-threading"> 628 The Pfaff model K sewing machine - Threading the machine 629 </a> 630 </h3><p>A heckuvalotta photos.</p> 631 632<a class="post-preview" href="/posts/pfaff-k-6-threading"> 633 <img alt="The Pfaff model K sewing machine - Threading the machine" src="/assets/2022-11-27-pfaff-k-6-threading/16.jpg"> 634 </a></li><li><span class="post-meta">Nov 26, 2022</span> 635 <h3> 636 <a class="post-link" href="/posts/pfaff-k-5-motor"> 637 The Pfaff model K sewing machine - Installing the motor 638 </a> 639 </h3><p>Anachronism time.</p> 640 641<a class="post-preview" href="/posts/pfaff-k-5-motor"> 642 <img alt="The Pfaff model K sewing machine - Installing the motor" src="/assets/2022-11-26-pfaff-k-5-motor/12.jpg"> 643 </a></li><li><span class="post-meta">Nov 25, 2022</span> 644 <h3> 645 <a class="post-link" href="/posts/pfaff-k-4-reassembly"> 646 The Pfaff model K sewing machine - Reassembly 647 </a> 648 </h3><p>Back together again - clean and smooth running.</p> 649 650<a class="post-preview" href="/posts/pfaff-k-4-reassembly"> 651 <img alt="The Pfaff model K sewing machine - Reassembly" src="/assets/2022-11-25-pfaff-k-4-reassembly/done2.jpg"> 652 </a></li><li><span class="post-meta">Nov 12, 2022</span> 653 <h3> 654 <a class="post-link" href="/posts/pfaff-k-3-cleanup"> 655 The Pfaff model K sewing machine - Disassembly and cleanup 656 </a> 657 </h3><p>Removing the ick and doing things Iâd rather not.</p> 658 659<a class="post-preview" href="/posts/pfaff-k-3-cleanup"> 660 <img alt="The Pfaff model K sewing machine - Disassembly and cleanup" src="/assets/2022-11-12-pfaff-k-3-cleanup/17.jpg"> 661 </a></li><li><span class="post-meta">Nov 12, 2022</span> 662 <h3> 663 <a class="post-link" href="/posts/pfaff-262-unhack"> 664 Pfaff 262 sewing machine - Unhacking a hack 665 </a> 666 </h3><p>When new old stuff reminds you of old old stuff.</p> 667 668<a class="post-preview" href="/posts/pfaff-262-unhack"> 669 <img alt="Pfaff 262 sewing machine - Unhacking a hack" src="/assets/2022-11-12-pfaff-262-unhack/1.jpg"> 670 </a></li><li><span class="post-meta">Nov 12, 2022</span> 671 <h3> 672 <a class="post-link" href="/posts/pfaff-262-toc"> 673 Pfaff 262 sewing machine - Maintenance stories 674 </a> 675 </h3><p>Adventures with a Pfaff 262 sewing machine.</p> 676 677<a class="post-preview" href="/posts/pfaff-262-toc"> 678 <img alt="Pfaff 262 sewing machine - Maintenance stories" src="/assets/2022-11-12-pfaff-262-toc/1.jpg"> 679 </a></li><li><span class="post-meta">Nov 6, 2022</span> 680 <h3> 681 <a class="post-link" href="/posts/haspkeeper"> 682 Latched but not locked 683 </a> 684 </h3><p>A couple of brass thingamabobs for the thingamajigs on an old wicker basket.</p> 685 686<a class="post-preview" href="/posts/haspkeeper"> 687 <img alt="Latched but not locked" src="/assets/2022-11-6-haspkeeper/3.jpg"> 688 </a></li><li><span class="post-meta">Oct 26, 2022</span> 689 <h3> 690 <a class="post-link" href="/posts/bagrepair"> 691 A favor for my father-in-law 692 </a> 693 </h3><p>Tools find tasks.</p> 694 695<a class="post-preview" href="/posts/bagrepair"> 696 <img alt="A favor for my father-in-law" src="/assets/2022-10-26-bagrepair/2.jpg"> 697 </a></li><li><span class="post-meta">Oct 15, 2022</span> 698 <h3> 699 <a class="post-link" href="/posts/pfaff-k-toc"> 700 The Pfaff model K sewing machine 701 </a> 702 </h3><p>Taking a Pfaff model K from sad to glad.</p> 703 704<a class="post-preview" href="/posts/pfaff-k-toc"> 705 <img alt="The Pfaff model K sewing machine" src="/assets/2022-08-20-pfaff-k-1-straycat/3.jpg"> 706 </a></li><li><span class="post-meta">Oct 15, 2022</span> 707 <h3> 708 <a class="post-link" href="/posts/pfaff-k-2"> 709 The Pfaff model K sewing machine - Tryout 710 </a> 711 </h3><p>Stiff but functional.</p> 712 713<a class="post-preview" href="/posts/pfaff-k-2"> 714 <img alt="The Pfaff model K sewing machine - Tryout" src="/assets/2022-10-15-pfaff-k-2/1.jpg"> 715 </a></li><li><span class="post-meta">Oct 9, 2022</span> 716 <h3> 717 <a class="post-link" href="/posts/sewingmachinecradle"> 718 A parking cradle for vintage sewing machines 719 </a> 720 </h3><p>Keeping the oil off the workbench and the grit out of the machines.</p> 721 722<a class="post-preview" href="/posts/sewingmachinecradle"> 723 <img alt="A parking cradle for vintage sewing machines" src="/assets/2022-10-09-sewingmachinecradle/7.jpg"> 724 </a></li><li><span class="post-meta">Oct 4, 2022</span> 725 <h3> 726 <a class="post-link" href="/posts/sewingmachinemotor"> 727 Trying out a commercial electronic motor speed control for vintage sewing machines 728 </a> 729 </h3><p>Cheaper than DIY, and nearly as good.</p> 730 731<a class="post-preview" href="/posts/sewingmachinemotor"> 732 <img alt="Trying out a commercial electronic motor speed control for vintage sewing machines" src="/assets/2022-10-04-sewingmachinemotor/1.jpg"> 733 </a></li><li><span class="post-meta">Aug 26, 2022</span> 734 <h3> 735 <a class="post-link" href="/posts/rootbeerroadtrip"> 736 Root beer roadtrip 737 </a> 738 </h3><p>A survey of root beer brands from Missouri to Georgia.</p> 739 740<a class="post-preview" href="/posts/rootbeerroadtrip"> 741 <img alt="Root beer roadtrip" src="/assets/2022-08-26-rootbeerroadtrip/IMG_20220829_200444_054-01.jpeg"> 742 </a></li><li><span class="post-meta">Aug 20, 2022</span> 743 <h3> 744 <a class="post-link" href="/posts/pfaff-k-1-straycat"> 745 The Pfaff model K sewing machine - A blast from the past 746 </a> 747 </h3><p>Coincidences are strange things.</p> 748 749<a class="post-preview" href="/posts/pfaff-k-1-straycat"> 750 <img alt="The Pfaff model K sewing machine - A blast from the past" src="/assets/2022-08-20-pfaff-k-1-straycat/3.jpg"> 751 </a></li><li><span class="post-meta">Aug 7, 2022</span> 752 <h3> 753 <a class="post-link" href="/posts/adler16-bobbin"> 754 The Adler class 8 sewing machine - Alternative bobbins for Wheeler and Wilson 9 type sewing machines 755 </a> 756 </h3><p>Mmmmmm. Bagels.</p> 757 758<a class="post-preview" href="/posts/adler16-bobbin"> 759 <img alt="The Adler class 8 sewing machine - Alternative bobbins for Wheeler and Wilson 9 type sewing machines" src="/assets/2022-08-07-adler16/shuttle.jpg"> 760 </a></li><li><span class="post-meta">Jul 9, 2022</span> 761 <h3> 762 <a class="post-link" href="/posts/adler15"> 763 The Adler class 8 sewing machine - Putting the Adler to good use 764 </a> 765 </h3><p>When your pockets are too deep.</p> 766 767<a class="post-preview" href="/posts/adler15"> 768 <img alt="The Adler class 8 sewing machine - Putting the Adler to good use" src="/assets/2022-07-09-adler15/1.jpg"> 769 </a></li><li><span class="post-meta">Jun 18, 2022</span> 770 <h3> 771 <a class="post-link" href="/posts/soilmoisture-6"> 772 Soil moisture monitoring in a flower garden - Catastrophe - or not 773 </a> 774 </h3><p>When planning pays off.</p> 775 776<a class="post-preview" href="/posts/soilmoisture-6"> 777 <img alt="Soil moisture monitoring in a flower garden - Catastrophe - or not" src="/assets/2022-06-18-soilmoisture-6/1.jpg"> 778 </a></li><li><span class="post-meta">Jun 18, 2022</span> 779 <h3> 780 <a class="post-link" href="/posts/adler14"> 781 The Adler class 8 sewing machine - A look at an original Adler sewing machine table 782 </a> 783 </h3><p>Resisting temptation.</p> 784 785<a class="post-preview" href="/posts/adler14"> 786 <img alt="The Adler class 8 sewing machine - A look at an original Adler sewing machine table" src="/assets/2022-06-18-adler14/1.jpg"> 787 </a></li><li><span class="post-meta">Jun 12, 2022</span> 788 <h3> 789 <a class="post-link" href="/posts/dual-hs135-2"> 790 Fixing up a Dual HS135 - Repair 791 </a> 792 </h3><p>Curing a known disease and a little bit more.</p> 793 794<a class="post-preview" href="/posts/dual-hs135-2"> 795 <img alt="Fixing up a Dual HS135 - Repair" src="/assets/2022-06-12-dual-hs135-2/6.jpg"> 796 </a></li><li><span class="post-meta">Jun 5, 2022</span> 797 <h3> 798 <a class="post-link" href="/posts/dual-hs135-toc"> 799 Fixing up a Dual HS135 800 </a> 801 </h3><p>Retro adventures with a Dual HS135.</p> 802 803<a class="post-preview" href="/posts/dual-hs135-toc"> 804 <img alt="Fixing up a Dual HS135" src="/assets/2022-06-05-dual-hs135-1/1.jpg"> 805 </a></li><li><span class="post-meta">Jun 5, 2022</span> 806 <h3> 807 <a class="post-link" href="/posts/dual-hs1
80735-1"> 808 Fixing up a Dual HS135 - First sniff 809 </a> 810 </h3><p>Whatâs that smell?</p> 811 812<a class="post-preview" href="/posts/dual-hs135-1"> 813 <img alt="Fixing up a Dual HS135 - First sniff" src="/assets/2022-06-05-dual-hs135-1/8.jpg"> 814 </a></li><li><span class="post-meta">Jun 4, 2022</span> 815 <h3> 816 <a class="post-link" href="/posts/soilmoisture-5"> 817 Soil moisture monitoring in a flower garden - An update after a very long pause 818 </a> 819 </h3><p>Mysteriouser and mysteriouser.</p> 820 821<a class="post-preview" href="/posts/soilmoisture-5"> 822 <img alt="Soil moisture monitoring in a flower garden - An update after a very long pause" src="/assets/2022-06-04-soilmoisture-5/1.jpg"> 823 </a></li><li><span class="post-meta">May 15, 2022</span> 824 <h3> 825 <a class="post-link" href="/posts/pfaff30-4"> 826 The Pfaff 30 sewing machine - Threading the Pfaff 30 827 </a> 828 </h3><p>Another change in plans.</p> 829 830<a class="post-preview" href="/posts/pfaff30-4"> 831 <img alt="The Pfaff 30 sewing machine - Threading the Pfaff 30" src="/assets/2022-05-15-pfaff30-4/20.jpg"> 832 </a></li><li><span class="post-meta">May 11, 2022</span> 833 <h3> 834 <a class="post-link" href="/posts/pfaff30-3"> 835 The Pfaff 30 sewing machine - Taking it for a spin 836 </a> 837 </h3><p>Doing things people say you canât do.</p> 838 839<a class="post-preview" href="/posts/pfaff30-3"> 840 <img alt="The Pfaff 30 sewing machine - Taking it for a spin" src="/assets/2022-05-11-pfaff30-3/2.jpg"> 841 </a></li><li><span class="post-meta">May 9, 2022</span> 842 <h3> 843 <a class="post-link" href="/posts/pfaff30-2"> 844 The Pfaff 30 sewing machine - Clean up 845 </a> 846 </h3><p>Sometimes you have to look twice to see how beautiful something is.</p> 847 848<a class="post-preview" href="/posts/pfaff30-2"> 849 <img alt="The Pfaff 30 sewing machine - Clean up" src="/assets/2022-05-09-pfaff30-2/3.jpg"> 850 </a></li><li><span class="post-meta">May 7, 2022</span> 851 <h3> 852 <a class="post-link" href="/posts/pfaff30-toc"> 853 The Pfaff 30 sewing machine - Table of Contents 854 </a> 855 </h3><p>Just passing through.</p> 856 857<a class="post-preview" href="/posts/pfaff30-toc"> 858 <img alt="The Pfaff 30 sewing machine - Table of Contents" src="/assets/2022-05-09-pfaff30-2/5.jpg"> 859 </a></li><li><span class="post-meta">May 7, 2022</span> 860 <h3> 861 <a class="post-link" href="/posts/pfaff30-1"> 862 The Pfaff 30 sewing machine - A first look 863 </a> 864 </h3><p>A special machine thatâs a product of its times.</p> 865 866<a class="post-preview" href="/posts/pfaff30-1"> 867 <img alt="The Pfaff 30 sewing machine - A first look" src="/assets/2022-05-07-pfaff30-1/2.jpg"> 868 </a></li><li><span class="post-meta">May 6, 2022</span> 869 <h3> 870 <a class="post-link" href="/posts/adler13"> 871 The Adler class 8 sewing machine - Modern consumables for a hundred year old sewing machine 872 </a> 873 </h3><p>Just screwing around a bit.</p> 874 875<a class="post-preview" href="/posts/adler13"> 876 <img alt="The Adler class 8 sewing machine - Modern consumables for a hundred year old sewing machine" src="/assets/2022-05-06-adler13/1.jpg"> 877 </a></li><li><span class="post-meta">May 4, 2022</span> 878 <h3> 879 <a class="post-link" href="/posts/diode-capacitors-volts-pt9"> 880 Voltage multipliers - Part 9 Failure modes 881 </a> 882 </h3><p>Virtually releasing the magic smoke.</p> 883 884<a class="post-preview" href="/posts/diode-capacitors-volts-pt9"> 885 <img alt="Voltage multipliers - Part 9 Failure modes" src="/assets/2022-05-04-Diode_Capacitors_Volts_Pt9/1.png"> 886 </a></li><li><span class="post-meta">Apr 29, 2022</span> 887 <h3> 888 <a class="post-link" href="/posts/motorcontrol7"> 889 A sewing machine motor speed control - Using a photointerrupter for speed control feedback 890 </a> 891 </h3><p>Works about as well as could be hoped for.</p> 892 893<a class="post-preview" href="/posts/motorcontrol7"> 894 <img alt="A sewing machine motor speed control - Using a photointerrupter for speed control feedback" src="/assets/2022-04-29-motorcontrol7/1.jpg"> 895 </a></li><li><span class="post-meta">Apr 15, 2022</span> 896 <h3> 897 <a class="post-link" href="/posts/rpm"> 898 Counting RPM with a photointerrupter 899 </a> 900 </h3>
901<script type="text/x-mathjax-config"> 902 MathJax.Hub.Config({ 903 tex2jax: { 904 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 905 processEscapes: true 906 } 907 }); 908</script>
908 909
910<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 911</script>
911 912
913<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 914</script>
914 915 916<p>When things donât work like they ought to.</p> 917 918<a class="post-preview" href="/posts/rpm"> 919 <img alt="Counting RPM with a photointerrupter" src="/assets/2022-04-15-rpm/module.jpg"> 920 </a></li><li><span class="post-meta">Apr 3, 2022</span> 921 <h3> 922 <a class="post-link" href="/posts/adler12"> 923 The Adler class 8 sewing machine - Threading the machine 924 </a> 925 </h3><p>Almost - but not quite - entirely like threading other machines.</p> 926 927<a class="post-preview" href="/posts/adler12"> 928 <img alt="The Adler class 8 sewing machine - Threading the machine" src="/assets/2022-04-03-adler12/bobbin1a.jpg"> 929 </a></li><li><span class="post-meta">Apr 1, 2022</span> 930 <h3> 931 <a class="post-link" href="/posts/motorcontrol6"> 932 A sewing machine motor speed control - PWM + PID + current measured BEMF = Fail 933 </a> 934 </h3><p>A failure and a new plan.</p> 935 936<a class="post-preview" href="/posts/motorcontrol6"> 937 <img alt="A sewing machine motor speed control - PWM + PID + current measured BEMF = Fail" src="/assets/2022-04-01-motorcontrol6/1.jpg"> 938 </a></li><li><span class="post-meta">Mar 20, 2022</span> 939 <h3> 940 <a class="post-link" href="/posts/motorcontrol5"> 941 A sewing machine motor speed control - A pulse width modulation driver with PID as a motor speed control 942 </a> 943 </h3><p>Getting closer.</p> 944 945<a class="post-preview" href="/posts/motorcontrol5"> 946 <img alt="A sewing machine motor speed control - A pulse width modulation driver with PID as a motor speed control" src="/assets/2022-03-07-motorcontrol4/1.jpg"> 947 </a></li><li><span class="post-meta">Mar 7, 2022</span> 948 <h3> 949 <a class="post-link" href="/posts/motorcontrol4"> 950 A sewing machine motor speed control - A pulse width modulation driver with feedback as a motor speed control 951 </a> 952 </h3><p>Moving forwards again.</p> 953 954<a class="post-preview" href="/posts/motorcontrol4"> 955 <img alt="A sewing machine motor speed control - A pulse width modulation driver with feedback as a motor speed control" src="/assets/2022-03-07-motorcontrol4/1.jpg"> 956 </a></li><li><span class="post-meta">Mar 5, 2022</span> 957 <h3> 958 <a class="post-link" href="/posts/motorcontrol3"> 959 A sewing machine motor speed control - A simple pulse width modulation driver as a motor speed control 960 </a> 961 </h3><p>One step forward and one step back.</p> 962 963<a class="post-preview" href="/posts/motorcontrol3"> 964 <img alt="A sewing machine motor speed control - A simple pulse width modulation driver as a motor speed control" src="/assets/2022-03-05-motorcontrol3/1.jpg"> 965 </a></li><li><span class="post-meta">Feb 28, 2022</span> 966 <h3> 967 <a class="post-link" href="/posts/motorcontrol2"> 968 A sewing machine motor speed control - A MOSFET source follower as a motor speed control 969 </a> 970 </h3><p>Better, but far from good.</p> 971 972<a class="post-preview" href="/posts/motorcontrol2"> 973 <img alt="A sewing machine motor speed control - A MOSFET source follower as a motor speed control" src="/assets/2022-02-28-motorcontrol2/1.jpg"> 974 </a></li><li><span class="post-meta">Feb 25, 2022</span> 975 <h3> 976 <a class="post-link" href="/posts/motorcontrol1"> 977 A sewing machine motor speed control - Basic ideas on how not to make a motor speed control 978 </a> 979 </h3><p>Simple but not really useful.</p> 980 981<a class="post-preview" href="/posts/motorcontrol1"> 982 <img alt="A sewing machine motor speed control - Basic ideas on how not to make a motor speed control" src="/assets/2022-02-25-motorcontrol1/1.jpg"> 983 </a></li><li><span class="post-meta">Feb 25, 2022</span> 984 <h3> 985 <a class="post-link" href="/posts/motorcontrol-toc"> 986 A sewing machine motor speed control - Table of Contents 987 </a> 988 </h3><p>
988Replacing simple mechanics with electricity and electronics.</p> 989 990<a class="post-preview" href="/posts/motorcontrol-toc"> 991 <img alt="A sewing machine motor speed control - Table of Contents" src="/assets/2022-02-25-motorcontrol1/3.jpg"> 992 </a></li><li><span class="post-meta">Feb 17, 2022</span> 993 <h3> 994 <a class="post-link" href="/posts/motorcontrol"> 995 A sewing machine motor speed control - Musings on motor speed control for universal motors 996 </a> 997 </h3><p>Ideas for taming my Adler.</p> 998 999<a class="post-preview" href="/posts/motorcontrol"> 1000 <img alt="A sewing machine motor speed control - Musings on motor speed control for universal motors" src="/assets/2022-02-17-motorcontrol/sketch.png"> 1001 </a></li><li><span class="post-meta">Feb 7, 2022</span> 1002 <h3> 1003 <a class="post-link" href="/posts/adler11"> 1004 The Adler class 8 sewing machine - Adjusting the thread tension 1005 </a> 1006 </h3><p>Thread tension from scratch.</p> 1007 1008<a class="post-preview" href="/posts/adler11"> 1009 <img alt="The Adler class 8 sewing machine - Adjusting the thread tension" src="/assets/2022-02-07-adler11/1.jpg"> 1010 </a></li><li><span class="post-meta">Feb 3, 2022</span> 1011 <h3> 1012 <a class="post-link" href="/posts/adler10"> 1013 The Adler class 8 sewing machine - The thread tensioning mechanisms 1014 </a> 1015 </h3><p>A lot simpler than it looks - but still complicated enough.</p> 1016 1017<a class="post-preview" href="/posts/adler10"> 1018 <img alt="The Adler class 8 sewing machine - The thread tensioning mechanisms" src="/assets/2022-02-03-adler10/10.jpg"> 1019 </a></li><li><span class="post-meta">Feb 2, 2022</span> 1020 <h3> 1021 <a class="post-link" href="/posts/adler9"> 1022 The Adler class 8 sewing machine - A problem with the thread tension 1023 </a> 1024 </h3><p>Itâs the little things that make life difficult.</p> 1025 1026<a class="post-preview" href="/posts/adler9"> 1027 <img alt="The Adler class 8 sewing machine - A problem with the thread tension" src="/assets/2022-02-02-adler9/1.jpg"> 1028 </a></li><li><span class="post-meta">Jan 25, 2022</span> 1029 <h3> 1030 <a class="post-link" href="/posts/threadtension"> 1031 Thread tension adjustment in vintage (and not so vintage) sewing machines 1032 </a> 1033 </h3><p>Get it right the first time.</p> 1034 1035<a class="post-preview" href="/posts/threadtension"> 1036 <img alt="Thread tension adjustment in vintage (and not so vintage) sewing machines" src="/assets/2022-01-25-threadtension/1.jpg"> 1037 </a></li><li><span class="post-meta">Jan 16, 2022</span> 1038 <h3> 1039 <a class="post-link" href="/posts/pfaff31-2"> 1040 The Pfaff model 31 sewing machine - Refinishing the cabinet 1041 </a> 1042 </h3><p>Really glad I did something I wasnât planning to do.</p> 1043 1044<a class="post-preview" href="/posts/pfaff31-2"> 1045 <img alt="The Pfaff model 31 sewing machine - Refinishing the cabinet" src="/assets/2022-01-16-pfaff31-2/1.jpg"> 1046 </a></li><li><span class="post-meta">Jan 1, 2022</span> 1047 <h3> 1048 <a class="post-link" href="/posts/pfaff31-toc"> 1049 The Pfaff model 31 sewing machine - Table of Contents 1050 </a> 1051 </h3><p>Reassembling a family heirloom.</p> 1052 1053<a class="post-preview" href="/posts/pfaff31-toc"> 1054 <img alt="The Pfaff model 31 sewing machine - Table of Contents" src="/assets/2022-01-16-pfaff31-2/22.jpg"> 1055 </a></li><li><span class="post-meta">Jan 1, 2022</span> 1056 <h3> 1057 <a class="post-link" href="/posts/pfaff31-1"> 1058 The Pfaff model 31 sewing machine - Initial state 1059 </a> 1060 </h3><p>A first look at the Pfaff 31 and its cabinet.</p> 1061 1062<a class="post-preview" href="/posts/pfaff31-1"> 1063 <img alt="The Pfaff model 31 sewing machine - Initial state" src="/assets/2022-01-01-pfaff31-1/1.jpg"> 1064 </a></li><li><span class="post-meta">Dec 14, 2021</span> 1065 <h3> 1066 <a class="post-link" href="/posts/phoneholster"> 1067 Black, gold, and blue 1068 </a> 1069 </h3><p>A leather phone holster for my Motorola G8 Android smartphone.</p> 1070 1071<a class="post-preview" href="/posts/phoneholster"> 1072 <img alt="Black, gold, and blue" src="/assets/2021-12-14-phoneholster/8a.jpg"> 1073 </a></li><li><span class="post-meta">Dec 5, 2021</span> 1074 <h3> 1075 <a class="post-link" href="/posts/pfaff-262-zigzag"> 1076 Pfaff 262 sewing machine - Sunday afternoon emergency 1077 </a> 1078 </h3><p>When the zig-zag only zags.</p> 1079 1080<a class="post-preview" href="/posts/pfaff-262-zigzag"> 1081 <img alt="Pfaff 262 sewing machine - Sunday afternoon emergency" src="/assets/2021-12-05-pfaff-262-zigzag/1.jpg"> 1082 </a></li><li><span class="post-meta">Dec 5, 2021</span> 1083 <h3> 1084 <a class="post-link" href="/posts/adler8"> 1085 The Adler class 8 sewing machine - Refurbishing some unobtainium
1086 </a> 1087 </h3><p>Not like new, but at least functional.</p> 1088 1089<a class="post-preview" href="/posts/adler8"> 1090 <img alt="The Adler class 8 sewing machine - Refurbishing some unobtainium" src="/assets/2021-12-05-adler8/11.jpg"> 1091 </a></li><li><span class="post-meta">Nov 30, 2021</span> 1092 <h3> 1093 <a class="post-link" href="/posts/phonepatch"> 1094 An Android phone patch adapter 1095 </a> 1096 </h3><p>Connecting two Android phones for fun and profit.</p> 1097 1098<a class="post-preview" href="/posts/phonepatch"> 1099 <img alt="An Android phone patch adapter" src="/assets/2021-11-30-phonepatch/zoom.png"> 1100 </a></li><li><span class="post-meta">Nov 23, 2021</span> 1101 <h3> 1102 <a class="post-link" href="/posts/adler7"> 1103 The Adler class 8 sewing machine - Sorting a box of unobtainium 1104 </a> 1105 </h3><p>An embarrassment of riches.</p> 1106 1107<a class="post-preview" href="/posts/adler7"> 1108 <img alt="The Adler class 8 sewing machine - Sorting a box of unobtainium" src="/assets/2021-11-23-adler7/2.jpg"> 1109 </a></li><li><span class="post-meta">Nov 21, 2021</span> 1110 <h3> 1111 <a class="post-link" href="/posts/universalmotor"> 1112 Reversing a universal motor 1113 </a> 1114 </h3><p>Easier than you might think.</p> 1115 1116<a class="post-preview" href="/posts/universalmotor"> 1117 <img alt="Reversing a universal motor" src="/assets/2021-11-21-universalmotor/6.jpg"> 1118 </a></li><li><span class="post-meta">Nov 20, 2021</span> 1119 <h3> 1120 <a class="post-link" href="/posts/adler6"> 1121 The Adler class 8 sewing machine - Building the base for the Adler 1122 </a> 1123 </h3><p>Lots of woodworking.</p> 1124 1125<a class="post-preview" href="/posts/adler6"> 1126 <img alt="The Adler class 8 sewing machine - Building the base for the Adler" src="/assets/2021-11-20-adler6/7.jpg"> 1127 </a></li><li><span class="post-meta">Nov 18, 2021</span> 1128 <h3> 1129 <a class="post-link" href="/posts/adler5"> 1130 The Adler class 8 sewing machine - A new base for the Adler 1131 </a> 1132 </h3><p>Looking good.</p> 1133 1134<a class="post-preview" href="/posts/adler5"> 1135 <img alt="The Adler class 8 sewing machine - A new base for the Adler" src="/assets/2021-11-18-adler5/3.jpg"> 1136 </a></li><li><span class="post-meta">Nov 6, 2021</span> 1137 <h3> 1138 <a class="post-link" href="/posts/oilcan"> 1139 Cleaning up a brass oil can 1140 </a> 1141 </h3><p>Cooler than its modern counterpart - and more practical.</p> 1142 1143<a class="post-preview" href="/posts/oilcan"> 1144 <img alt="Cleaning up a brass oil can" src="/assets/2021-11-06-oilcan/7.jpg"> 1145 </a></li><li><span class="post-meta">Oct 24, 2021</span> 1146 <h3> 1147 <a class="post-link" href="/posts/adler4"> 1148 The Adler class 8 sewing machine - Not doing what I had planned 1149 </a> 1150 </h3><p>Red crayons for better legibility.</p> 1151 1152<a class="post-preview" href="/posts/adler4"> 1153 <img alt="The Adler class 8 sewing machine - Not doing what I had planned" src="/assets/2021-10-24-adler4/5.jpg"> 1154 </a></li><li><span class="post-meta">Oct 23, 2021</span> 1155 <h3> 1156 <a class="post-link" href="/posts/fixalamp"> 1157 Fixing a floor lamp 1158 </a> 1159 </h3><p>Swiss cheese - or a block of hole-y steel.</p> 1160 1161<a class="post-preview" href="/posts/fixalamp"> 1162 <img alt="Fixing a floor lamp" src="/assets/2021-10-23-fixalamp/4.jpg"> 1163 </a></li><li><span class="post-meta">Oct 23, 2021</span> 1164 <h3> 1165 <a class="post-link" href="/posts/electrometerhat3"> 1166 A hat full of electrometers - Finished 1167 </a> 1168 </h3><p>A bunch of electrometers on the wrong hat.</p> 1169 1170<a class="post-preview" href="/posts/electrometerhat3"> 1171 <img alt="A hat full of electrometers - Finished" src="/assets/2021-10-23-electrometerhat3/4.jpg"> 1172 </a></li><li><span class="post-meta">Oct 14, 2021</span> 1173 <h3> 1174 <a class="post-link" href="/posts/d43-oneshotspeed"> 1175 D43 oscilloscope software - Oneshot capture and the D43 time base 1176 </a> 1177 </h3><p>I feel the need â the need for speed!</p> 1178 1179<a class="post-preview" href="/posts/d43-oneshotspeed"> 1180 <img alt="D43 oscilloscope software - Oneshot capture and the D43 time base" src="/assets/2021-10-14-d43-oneshotspeed/10microsecondpercm.png"> 1181 </a></li><li><span class="post-meta">Oct 8, 2021</span> 1182 <h3> 1183 <a class="post-link" href="/posts/electrometerhat2"> 1184 A hat full of electrometers - Mass production 1185 </a> 1186 </h3><p>A bunch of electrometers in need of a hat.</p> 1187 1188<a class="post-preview" href="/posts/electrometerhat2"> 1189 <img alt="A hat full of electrometers - Mass production" src="/assets/2021-10-08-electrometerhat2/8.jpg"> 1190 </a></li><li><span class="post-meta">Oct 5, 2021</span> 1191 <h3> 1192 <a class="post-link" href="/posts/iv15"> 1193 Building an IV plotter from an Arduino Nano - Oops 1194 </a> 1195 </h3>
1196<script type="text/x-mathjax-config"> 1197 MathJax.Hub.Config({ 1198 tex2jax: { 1199 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1200 processEscapes: true 1201 } 1202 }); 1203</script>
1203 1204
1205<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1206</script>
1206 1207
1208<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1209</script>
1209 1210 1211<p>Correcting a mistake - an update for Rodriguez.</p> 1212 1213<a class="post-preview" href="/posts/iv15"> 1214 <img alt="Building an IV plotter from an Arduino Nano - Oops" src="/assets/redo.png"> 1215 </a></li><li><span class="post-meta">Aug 14, 2021</span> 1216 <h3> 1217 <a class="post-link" href="/posts/adler3"> 1218 The Adler class 8 sewing machine - Planning the base 1219 </a> 1220 </h3><p>Simple is where itâs at.</p> 1221 1222<a class="post-preview" href="/posts/adler3"> 1223 <img alt="The Adler class 8 sewing machine - Planning the base" src="/assets/2021-08-14-adler3/plans.jpg"> 1224 </a></li><li><span class="post-meta">Aug 12, 2021</span> 1225 <h3> 1226 <a class="post-link" href="/posts/teacmp3"> 1227 TEAC MP390 battery replacement 1228 </a> 1229 </h3><p>A quick fix.</p> 1230 1231<a class="post-preview" href="/posts/teacmp3"> 1232 <img alt="TEAC MP390 battery replacement" src="/assets/2021-08-12-teacmp3/1.jpg"> 1233 </a></li><li><span class="post-meta">Aug 7, 2021</span> 1234 <h3> 1235 <a class="post-link" href="/posts/adler2"> 1236 The Adler class 8 sewing machine - Clean up 1237 </a> 1238 </h3><p>Shiny and black is hard to photograph.</p> 1239 1240<a class="post-preview" href="/posts/adler2"> 1241 <img alt="The Adler class 8 sewing machine - Clean up" src="/assets/2021-08-07-adler2/1.jpg"> 1242 </a></li><li><span class="post-meta">Aug 5, 2021</span> 1243 <h3> 1244 <a class="post-link" href="/posts/adler1"> 1245 The Adler class 8 sewing machine - Initial state 1246 </a> 1247 </h3><p>In a word - filthy.</p> 1248 1249<a class="post-preview" href="/posts/adler1"> 1250 <img alt="The Adler class 8 sewing machine - Initial state" src="/assets/2021-08-05-adler1/3.jpg"> 1251 </a></li><li><span class="post-meta">Aug 5, 2021</span> 1252 <h3> 1253 <a class="post-link" href="/posts/adler-toc"> 1254 The Adler class 8 sewing machine - Table of Contents 1255 </a> 1256 </h3><p>The eagle has landed.</p> 1257 1258<a class="post-preview" href="/posts/adler-toc"> 1259 <img alt="The Adler class 8 sewing machine - Table of Contents" src="/assets/2021-08-05-adler1/adler.jpg"> 1260 </a></li><li><span class="post-meta">Jul 24, 2021</span> 1261 <h3> 1262 <a class="post-link" href="/posts/blaupunkt20300-4"> 1263 Rejuvenating a Blaupunkt Granada Radio - Bluetooth for the blue dot 1264 </a> 1265 </h3><p>Bringing the Granada into the twenty first century.</p> 1266 1267<a class="post-preview" href="/posts/blaupunkt20300-4"> 1268 <img alt="Rejuvenating a Blaupunkt Granada Radio - Bluetooth for the blue dot" src="/assets/2021-07-24-blaupunkt20300-4/done.jpg"> 1269 </a></li><li><span class="post-meta">Jun 3, 2021</span> 1270 <h3> 1271 <a class="post-link" href="/posts/iv14"> 1272 Building an IV plotter from an Arduino Nano - How do you use this thing, anyway? 1273 </a> 1274 </h3><p>Some instructions and wiring diagrams to make things easier.</p> 1275 1276<a class="post-preview" href="/posts/iv14"> 1277 <img alt="Building an IV plotter from an Arduino Nano - How do you use this thing, anyway?" src="/assets/2021-06-03-iv14/Rodriguez-pebble-NPN.png"> 1278 </a></li><li><span class="post-meta">May 25, 2021</span> 1279 <h3> 1280 <a class="post-link" href="/posts/d43-binary"> 1281 D43 oscilloscope software - Pre-compiled binaries for easy use 1282 </a> 1283 </h3><p>GitHub to the rescue.</p> 1284 1285<a class="post-preview" href="/posts/d43-binary"> 1286 <img alt="D43 oscilloscope software - Pre-compiled binaries for easy use" src="/assets/2021-05-25-D43-binary/D43-windows.png"> 1287 </a></li><li><span class="post-meta">May 21, 2021</span> 1288 <h3> 1289 <a class="post-link" href="/posts/firewoodrack"> 1290 Building a firewood rack 1291 </a> 1292 </h3><p>Under-engineered and over-built - but the price is right.</p> 1293 1294<a class="post-preview" href="/posts/firewoodrack"> 1295 <img alt="Building a firewood rack" src="/assets/2021-05-21-firewoodrack/15.jpg"> 1296 </a></li><li><span class="post-meta">May 18, 2021</span> 1297 <h3> 1298 <a class="post-link" href="/posts/androidtranscribe5"> 1299 Transcribing phone calls with Google Live Transcribe - A properly functioning loop-back adapter 1300 </a> 1301 </h3><p>A CTIA four pole plug and a few spare parts.</p> 1302 1303<a class="post-preview" href="/posts/androidtranscribe5"> 1304 <img alt="Transcribing phone calls with Google Live Transcribe - A properly functioning loop-back adapter" src="/assets/2021-05-18-androidtranscribe5/10A.jpg"> 1305 </a></li><li><span class="post-meta">May 15, 2021</span> 1306 <h3> 1307 <a class="post-link" href="/posts/howtosolder-17-headset"> 1308 HowTo: Solder by hand - Repair an Android headset 1309 </a> 1310 </h3><p>Everything it takes to replace a broken Android headset plug (4 pole
1310CTIA.)</p> 1311 1312<a class="post-preview" href="/posts/howtosolder-17-headset"> 1313 <img alt="HowTo: Solder by hand - Repair an Android headset" src="/assets/2021-05-15-howtosolder-17-headset/37.jpg"> 1314 </a></li><li><span class="post-meta">May 10, 2021</span> 1315 <h3> 1316 <a class="post-link" href="/posts/androidtranscribe4"> 1317 Transcribing phone calls with Google Live Transcribe - An adapter made from common parts 1318 </a> 1319 </h3><p>Not the cheapest way but certainly a reproducible way.</p> 1320 1321<a class="post-preview" href="/posts/androidtranscribe4"> 1322 <img alt="Transcribing phone calls with Google Live Transcribe - An adapter made from common parts" src="/assets/2021-05-10-androidtranscribe4/18.jpg"> 1323 </a></li><li><span class="post-meta">May 4, 2021</span> 1324 <h3> 1325 <a class="post-link" href="/posts/androidtranscribe3"> 1326 Transcribing phone calls with Google Live Transcribe - Measurements and optimization 1327 </a> 1328 </h3><p>Making sure that <em>Live Transcribe</em> can hear properly.</p> 1329 1330<a class="post-preview" href="/posts/androidtranscribe3"> 1331 <img alt="Transcribing phone calls with Google Live Transcribe - Measurements and optimization" src="/assets/2021-05-04-androidtranscribe3/transcribe.jpg"> 1332 </a></li><li><span class="post-meta">May 2, 2021</span> 1333 <h3> 1334 <a class="post-link" href="/posts/androidtranscribe2"> 1335 Transcribing phone calls with Google Live Transcribe - A prototype and a test 1336 </a> 1337 </h3><p>Electrically functional, but not quite ready for prime time.</p> 1338 1339<a class="post-preview" href="/posts/androidtranscribe2"> 1340 <img alt="Transcribing phone calls with Google Live Transcribe - A prototype and a test" src="/assets/2021-05-02-androidtranscribe2/test.jpg"> 1341 </a></li><li><span class="post-meta">Apr 29, 2021</span> 1342 <h3> 1343 <a class="post-link" href="/posts/androidtranscribe1"> 1344 Transcribing phone calls with Google Live Transcribe - A first look 1345 </a> 1346 </h3><p>It ainât rocket science, but it ainât trivial, either.</p> 1347 1348<a class="post-preview" href="/posts/androidtranscribe1"> 1349 <img alt="Transcribing phone calls with Google Live Transcribe - A first look" src="/assets/2021-04-29-androidtranscribe/transcribe.jpg"> 1350 </a></li><li><span class="post-meta">Apr 29, 2021</span> 1351 <h3> 1352 <a class="post-link" href="/posts/androidtranscribe-toc"> 1353 Transcribing phone calls with Google Live Transcribe - Table of Contents 1354 </a> 1355 </h3><p>An aid for the hard of hearing.</p> 1356 1357<a class="post-preview" href="/posts/androidtranscribe-toc"> 1358 <img alt="Transcribing phone calls with Google Live Transcribe - Table of Contents" src="/assets/2021-04-29-androidtranscribe/transcribe.jpg"> 1359 </a></li><li><span class="post-meta">Apr 11, 2021</span> 1360 <h3> 1361 <a class="post-link" href="/posts/rabbit"> 1362 A rabbit for the rabbit (ein Hase für den Hase) 1363 </a> 1364 </h3><p>Getting a grip on a wood burning stove.</p> 1365 1366<a class="post-preview" href="/posts/rabbit"> 1367 <img alt="A rabbit for the rabbit (ein Hase für den Hase)" src="/assets/2021-04-11-rabbit/5.jpg"> 1368 </a></li><li><span class="post-meta">Mar 11, 2021</span> 1369 <h3> 1370 <a class="post-link" href="/posts/soilmoisture-4"> 1371 Soil moisture monitoring in a flower garden - The Mud-Py monitoring software 1372 </a> 1373 </h3><p>Django + MQTT = Easy.</p> 1374 1375<a class="post-preview" href="/posts/soilmoisture-4"> 1376 <img alt="Soil moisture monitoring in a flower garden - The Mud-Py monitoring software" src="/assets/2021-03-11-soilmoisture-4/mud-py-sensor.png"> 1377 </a></li><li><span class="post-meta">Mar 4, 2021</span> 1378 <h3> 1379 <a class="post-link" href="/posts/simpson467"> 1380 The Simpson 467 - my new old multimeter 1381 </a> 1382 </h3><p>Iâve got this thing about old equipment.</p> 1383 1384<a class="post-preview" href="/posts/simpson467"> 1385 <img alt="The Simpson 467 - my new old multimeter" src="/assets/2021-03-04-simpson467/simpson467.jpg"> 1386 </a></li><li><span class="post-meta">Feb 27, 2021</span> 1387 <h3> 1388 <a class="post-link" href="/posts/soilmoisture-3"> 1389 Soil moisture monitoring in a flower garden - Solar power for the monitoring system 1390 </a> 1391 </h3><p>Assembling a few modules.</p> 1392 1393<a class="post-preview" href="/posts/soilmoisture-3"> 1394 <img alt="Soil moisture monitoring in a flower garden - Solar power for the monitoring system" src="/assets/2021-02-27-soilmoisture-3/solarpower.jpg"> 1395 </a></li><li><span class="post-meta">Feb 15, 2021</span> 1396 <h3> 1397 <a class="post-link" href="/posts/iv13"> 1398 Building an IV plotter from an Arduino Nano - Taking a look at a tunnel diode 1399 </a> 1400 </h3>
1401<script type="text/x-mathjax-config"> 1402 MathJax.Hub.Config({ 1403 tex2jax: { 1404 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1405 processEscapes: true 1406 } 1407 }); 1408</script>
1408 1409
1410<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1411</script>
1411 1412
1413<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1414</script>
1414 1415 1416<p>Surprise time.</p> 1417 1418<a class="post-preview" href="/posts/iv13"> 1419 <img alt="Building an IV plotter from an Arduino Nano - Taking a look at a tunnel diode" src="/assets/2021-02-15-iv13/GI103A-original.png"> 1420 </a></li><li><span class="post-meta">Feb 13, 2021</span> 1421 <h3> 1422 <a class="post-link" href="/posts/iv12"> 1423 Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 4 1424 </a> 1425 </h3>
1426<script type="text/x-mathjax-config"> 1427 MathJax.Hub.Config({ 1428 tex2jax: { 1429 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1430 processEscapes: true 1431 } 1432 }); 1433</script>
1433 1434
1435<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1436</script>
1436 1437
1438<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1439</script>
1439 1440 1441<p>Three timeâs a charm.</p> 1442 1443<a class="post-preview" href="/posts/iv12"> 1444 <img alt="Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 4" src="/assets/2021-02-13-iv12/2N3904-schematic.jpg"> 1445 </a></li><li><span class="post-meta">Feb 6, 2021</span> 1446 <h3> 1447 <a class="post-link" href="/posts/iv11"> 1448 Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 3 1449 </a> 1450 </h3>
1451<script type="text/x-mathjax-config"> 1452 MathJax.Hub.Config({ 1453 tex2jax: { 1454 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1455 processEscapes: true 1456 } 1457 }); 1458</script>
1458 1459
1460<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1461</script>
1461 1462
1463<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1464</script>
1464 1465 1466<p>Revising Rodriguezâs base current measurements.</p> 1467 1468<a class="post-preview" href="/posts/iv11"> 1469 <img alt="Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 3" src="/assets/2021-02-06-iv11/2N3904.png"> 1470 </a></li><li><span class="post-meta">Jan 24, 2021</span> 1471 <h3> 1472 <a class="post-link" href="/posts/iv10"> 1473 Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 2 1474 </a> 1475 </h3>
1476<script type="text/x-mathjax-config"> 1477 MathJax.Hub.Config({ 1478 tex2jax: { 1479 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1480 processEscapes: true 1481 } 1482 }); 1483</script>
1483 1484
1485<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1486</script>
1486 1487
1488<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1489</script>
1489 1490 1491<p>Lets take a âdo overâ on that biasing.</p> 1492 1493<a class="post-preview" href="/posts/iv10"> 1494 <img alt="Building an IV plotter from an Arduino Nano - Designing a common emitter amplifier with Rodriguez - part 2" src="/assets/2021-01-24-iv10/ce-bettervalues.png"> 1495 </a></li><li><span class="post-meta">Jan 22, 2021</span> 1496 <h3> 1497 <a class="post-link" href="/posts/iv9"> 1498 Building an IV plotter from an Arduino Nano - Now that I've got it, how do I use it? 1499 </a> 1500 </h3>
1501<script type="text/x-mathjax-config"> 1502 MathJax.Hub.Config({ 1503 tex2jax: { 1504 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1505 processEscapes: true 1506 } 1507 }); 1508</script>
1508 1509
1510<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1511</script>
1511 1512
1513<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1514</script>
1514 1515 1516<p>Designing a common emitter amplifier with Rodriguez.</p> 1517 1518<a class="post-preview" href="/posts/iv9"> 1519 <img alt="Building an IV plotter from an Arduino Nano - Now that I've got it, how do I use it?" src="/assets/2021-01-22-iv9/2N3904-ce-design.png"> 1520 </a></li><li><span class="post-meta">Jan 16, 2021</span> 1521 <h3> 1522 <a class="post-link" href="/posts/gnuradio-impedancetester-4"> 1523 Learning about GNU Radio - Sources of error in the impedance tester 1524 </a> 1525 </h3>
1526<script type="text/x-mathjax-config"> 1527 MathJax.Hub.Config({ 1528 tex2jax: { 1529 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1530 processEscapes: true 1531 } 1532 }); 1533</script>
1533 1534
1535<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1536</script>
1536 1537
1538<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1539</script>
1539 1540 1541<p>Thatâs got the inductors covered, but what about the capacitors?</p> 1542 1543<a class="post-preview" href="/posts/gnuradio-impedancetester-4"> 1544 <img alt="Learning about GNU Radio - Sources of error in the impedance tester" src="/assets/2021-01-16-gnuradio-impedancetester-4/inductor.png"> 1545 </a></li><li><span class="post-meta">Jan 3, 2021</span> 1546 <h3> 1547 <a class="post-link" href="/posts/iv-8"> 1548 Building an IV plotter from an Arduino Nano - Fixing some bugs and changing names 1549 </a> 1550 </h3>
1551<script type="text/x-mathjax-config"> 1552 MathJax.Hub.Config({ 1553 tex2jax: { 1554 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1555 processEscapes: true 1556 } 1557 }); 1558</script>
1558 1559
1560<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1561</script>
1561 1562
1563<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1564</script>
1564 1565 1566<p>Oversampling by any other name is just as slow.</p> 1567 1568<a class="post-preview" href="/posts/iv-8"> 1569 <img alt="Building an IV plotter from an Arduino Nano - Fixing some bugs and changing names" src="/assets/2021-01-03-iv8/rodriguez.png"> 1570 </a></li><li><span class="post-meta">Dec 16, 2020</span> 1571 <h3> 1572 <a class="post-link" href="/posts/iv7"> 1573 Building an IV plotter from an Arduino Nano - Back on track and making progress 1574 </a> 1575 </h3>
1576<script type="text/x-mathjax-config"> 1577 MathJax.Hub.Config({ 1578 tex2jax: { 1579 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1580 processEscapes: true 1581 } 1582 }); 1583</script>
1583 1584
1585<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1586</script>
1586 1587
1588<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1589</script>
1589 1590 1591<p>A functional tracer with revised hardware and software.</p> 1592 1593<a class="post-preview" href="/posts/iv7"> 1594 <img alt="Building an IV plotter from an Arduino Nano - Back on track and making progress" src="/assets/2020-12-16-iv7/qtivplotter.png"> 1595 </a></li><li><span class="post-meta">Dec 10, 2020</span> 1596 <h3> 1597 <a class="post-link" href="/posts/electrometerhat1"> 1598 A hat full of electrometers - Testing the first electrometer 1599 </a> 1600 </h3><p>A miniature, gold plated electrometer.</p> 1601 1602<a class="post-preview" href="/posts/electrometerhat1"> 1603 <img alt="A hat full of electrometers - Testing the first electrometer" src="/assets/2020-12-10-electrometerhat1/firsttest.jpg"> 1604 </a></li><li><span class="post-meta">Dec 10, 2020</span> 1605 <h3> 1606 <a class="post-link" href="/posts/electrometerhat-toc"> 1607 A hat full of electrometers - Table of Contents 1608 </a> 1609 </h3><p>A special request.</p> 1610 1611<a class="post-preview" href="/posts/electrometerhat-toc"> 1612 <img alt="A hat full of electrometers - Table of Contents" src="/assets/2020-12-10-electrometerhat1/firsttest.jpg"> 1613 </a></li><li><span class="post-meta">Dec 7, 2020</span> 1614 <h3> 1615 <a class="post-link" href="/posts/iv6"> 1616 Building an IV plotter from an Arduino Nano - Refocusing on the task 1617 </a> 1618 </h3>
1619<script type="text/x-mathjax-config"> 1620 MathJax.Hub.Config({ 1621 tex2jax: { 1622 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1623 processEscapes: true 1624 } 1625 }); 1626</script>
1626 1627
1628<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1629</script>
1629 1630
1631<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1632</script>
1632 1633 1634<p>Forget the âgators, I was supposed to be doing something else.</p> 1635 1636<a class="post-preview" href="/posts/iv6"> 1637 <img alt="Building an IV plotter from an Arduino Nano - Refocusing on the task" src="/assets/2020-12-07-iv6/gator.png"> 1638 </a></li><li><span class="post-meta">Dec 6, 2020</span> 1639 <h3> 1640 <a class="post-link" href="/posts/iv5"> 1641 Building an IV plotter from an Arduino Nano - A simple Python program to get started 1642 </a> 1643 </h3>
1644<script type="text/x-mathjax-config"> 1645 MathJax.Hub.Config({ 1646 tex2jax: { 1647 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1648 processEscapes: true 1649 } 1650 }); 1651</script>
1651 1652
1653<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1654</script>
1654 1655
1656<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1657</script>
1657 1658 1659<p>Just doing some math and writing a bunch of numbers to a file.</p> 1660 1661<a class="post-preview" href="/posts/iv5"> 1662 <img alt="Building an IV plotter from an Arduino Nano - A simple Python program to get started" src="/assets/2020-12-06-iv5/code.png"> 1663 </a></li><li><span class="post-meta">Dec 4, 2020</span> 1664 <h3> 1665 <a class="post-link" href="/posts/iv4"> 1666 Building an IV plotter from an Arduino Nano - Adding it all up 1667 </a> 1668 </h3>
1669<script type="text/x-mathjax-config"> 1670 MathJax.Hub.Config({ 1671 tex2jax: { 1672 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1673 processEscapes: true 1674 } 1675 }); 1676</script>
1676 1677
1678<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1679</script>
1679 1680
1681<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1682</script>
1682 1683 1684<p>Just do the easy stuff in the Arduino.</p> 1685 1686<a class="post-preview" href="/posts/iv4"> 1687 <img alt="Building an IV plotter from an Arduino Nano - Adding it all up" src="/assets/2020-12-04-iv4/iv-red-bad.png"> 1688 </a></li><li><span class="post-meta">Dec 3, 2020</span> 1689 <h3> 1690 <a class="post-link" href="/posts/pictureframe"> 1691 A rustical picture frame 1692 </a> 1693 </h3><p><a href="https://www.youtube.com/watch?v=8KwgWqVCPzk">âAnd Now for Something Completely Differentâ</a> - <a href="https://en.wikipedia.org/wiki/Monty_Python%27s_Flying_Circus">Monty Pythonâs <em>Flying Circus</em></a></p> 1694 1695<a class="post-preview" href="/posts/pictureframe"> 1696 <img alt="A rustical picture frame" src="/assets/2020-12-03-pictureframe/new.jpg"> 1697 </a></li><li><span class="post-meta">Nov 28, 2020</span> 1698 <h3> 1699 <a class="post-link" href="/posts/oneshot-return"> 1700 Revisiting the D43 one-shot capture function 1701 </a> 1702 </h3><p>The <a href="https://electronics.stackexchange.com/">Electrical Engineering StackExchange</a> strikes again.</p> 1703 1704<a class="post-preview" href="/posts/oneshot-return"> 1705 <img alt="Revisiting the D43 one-shot capture function" src="/assets/2020-11-28-oneshot-return/fallingedge.png"> 1706 </a></li><li><span class="post-meta">Nov 1, 2020</span> 1707 <h3> 1708 <a class="post-link" href="/posts/blaupunkt20300-3"> 1709 Rejuvenating a Blaupunkt Granada Radio - Renovating the power supply 1710 </a> 1711 </h3><p>Iâm not much on the smell of rotten eggs.</p> 1712 1713<a class="post-preview" href="/posts/blaupunkt20300-3"> 1714 <img alt="Rejuvenating a Blaupunkt Granada Radio - Renovating the power supply" src="/assets/2020-11-01-blaupunkt20300-3/rectifier-old.png"> 1715 </a></li><li><span class="post-meta">Oct 24, 2020</span> 1716 <h3> 1717 <a class="post-link" href="/posts/iv3"> 1718 Building an IV plotter from an Arduino Nano - Measuring current with an Arduino 1719 </a> 1720 </h3>
1721<script type="text/x-mathjax-config"> 1722 MathJax.Hub.Config({ 1723 tex2jax: { 1724 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1725 processEscapes: true 1726 } 1727 }); 1728</script>
1728 1729
1730<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1731</script>
1731 1732
1733<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1734</script>
1734 1735 1736<p>Ohmâs law doesnât require a current shunt.</p> 1737 1738<a class="post-preview" href="/posts/iv3"> 1739 <img alt="Building an IV plotter from an Arduino Nano - Measuring current with an Arduino" src="/assets/2020-10-24-iv-3/current.png"> 1740 </a></li><li><span class="post-meta">Oct 21, 2020</span> 1741 <h3> 1742 <a class="post-link" href="/posts/iv-2"> 1743 Building an IV plotter from an Arduino Nano - Generating the bias voltage with stone knives and bearskins 1744 </a> 1745 </h3>
1746<script type="text/x-mathjax-config"> 1747 MathJax.Hub.Config({ 1748 tex2jax: { 1749 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1750 processEscapes: true 1751 } 1752 }); 1753</script>
1753 1754
1755<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1756</script>
1756 1757
1758<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1759</script>
1759 1760 1761<p>Use what youâve got.</p> 1762 1763<a class="post-preview" href="/posts/iv-2"> 1764 <img alt="Building an IV plotter from an Arduino Nano - Generating the bias voltage with stone knives and bearskins" src="/assets/2020-10-21-iv-2/ragged.png"> 1765 </a></li><li><span class="post-meta">Oct 19, 2020</span> 1766 <h3> 1767 <a class="post-link" href="/posts/iv-1a"> 1768 Building an IV plotter from an Arduino Nano - Why am I doing this? 1769 </a> 1770 </h3>
1771<script type="text/x-mathjax-config"> 1772 MathJax.Hub.Config({ 1773 tex2jax: { 1774 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1775 processEscapes: true 1776 } 1777 }); 1778</script>
1778 1779
1780<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1781</script>
1781 1782
1783<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1784</script>
1784 1785 1786<p>When Iâm right, Iâm right.</p> 1787 1788<a class="post-preview" href="/posts/iv-1a"> 1789 <img alt="Building an IV plotter from an Arduino Nano - Why am I doing this?" src="/assets/2020-10-19-iv/circuit.png"> 1790 </a></li><li><span class="post-meta">Oct 19, 2020</span> 1791 <h3> 1792 <a class="post-link" href="/posts/iv-1-toc"> 1793 Building an IV plotter from an Arduino Nano - Table of Contents 1794 </a> 1795 </h3><p>Making a point the hard way.</p> 1796 1797<a class="post-preview" href="/posts/iv-1-toc"> 1798 <img alt="Building an IV plotter from an Arduino Nano - Table of Contents" src="/assets/2020-10-19-iv/ib-ic-3904.png"> 1799 </a></li><li><span class="post-meta">Oct 15, 2020</span> 1800 <h3> 1801 <a class="post-link" href="/posts/badbulb"> 1802 What's wrong with this piece of cheap junk? 1803 </a> 1804 </h3><p>Flashing lights are for the disco, not the dining room.</p> 1805 1806<a class="post-preview" href="/posts/badbulb"> 1807 <img alt="What's wrong with this piece of cheap junk?" src="/assets/2020-10-15-badbulb/bulb.jpg"> 1808 </a></li><li><span class="post-meta">Oct 10, 2020</span> 1809 <h3> 1810 <a class="post-link" href="/posts/fixwhatisntbroke"> 1811 Fixing what isn't broke 1812 </a> 1813 </h3><p>At least, the manufacturer wouldnât see it that way.</p> 1814 1815<a class="post-preview" href="/posts/fixwhatisntbroke"> 1816 <img alt="Fixing what isn't broke" src="/assets/2020-10-10-fixwhatisntbroke/audiooutlet.jpg"> 1817 </a></li><li><span class="post-meta">Oct 8, 2020</span> 1818 <h3> 1819 <a class="post-link" href="/posts/blaupunkt20300-2"> 1820 Rejuvenating a Blaupunkt Granada Radio - Clean up and assessment 1821 </a> 1822 </h3><p>Clean is good, but it doesnât do much for bad capacitors.</p> 1823 1824<a class="post-preview" href="/posts/blaupunkt20300-2"> 1825 <img alt="Rejuvenating a Blaupunkt Granada Radio - Clean up and assessment" src="/assets/2020-10-08-blaupunkt20300-2/10.png"> 1826 </a></li><li><span class="post-meta">Oct 1, 2020</span> 1827 <h3> 1828 <a class="post-link" href="/posts/blaupunkt20300-1"> 1829 Rejuvenating a Blaupunkt Granada Radio - First look 1830 </a> 1831 </h3><p>Whatâs wrong, and how hard is this going to be?</p> 1832 1833<a class="post-preview" href="/posts/blaupunkt20300-1"> 1834 <img alt="Rejuvenating a Blaupunkt Granada Radio - First look" src="/assets/2020-10-01-blaupunkt20300-1/front.jpg"> 1835 </a></li><li><span class="post-meta">Oct 1, 2020</span> 1836 <h3> 1837 <a class="post-link" href="/posts/1blaupunkt20300-toc"> 1838 Rejuvenating a Blaupunkt Granada Radio - Table of Contents 1839 </a> 1840 </h3><p>Refreshing my wifeâs childhood memories.</p> 1841 1842<a class="post-preview" href="/posts/1blaupunkt20300-toc"> 1843 <img alt="Rejuvenating a Blaupunkt Granada Radio - Table of Contents" src="/assets/2020-10-01-blaupunkt20300-1/front.jpg"> 1844 </a></li><li><span class="post-meta">Sep 29, 2020</span> 1845 <h3> 1846 <a class="post-link" href="/posts/gnuradio-impedancetester-3"> 1847 Learning about GNU Radio - More functions for the impedance tester 1848 </a> 1849 </h3>
1850<script type="text/x-mathjax-config"> 1851 MathJax.Hub.Config({ 1852 tex2jax: { 1853 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1854 processEscapes: true 1855 } 1856 }); 1857</script>
1857 1858
1859<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1860</script>
1860 1861
1862<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1863</script>
1863 1864 1865<p>More math and a little more software.</p> 1866 1867<a class="post-preview" href="/posts/gnuradio-impedancetester-3"> 1868 <img alt="Learning about GNU Radio - More functions for the impedance tester" src="/assets/2020-09-29-gnuradio-impedancetester-3/inductor.png"> 1869 </a></li><li><span class="post-meta">Sep 25, 2020</span> 1870 <h3> 1871 <a class="post-link" href="/posts/gnuradio-impedancetester-2"> 1872 Learning about GNU Radio - Hooking up the impedance tester 1873 </a> 1874 </h3>
1875<script type="text/x-mathjax-config"> 1876 MathJax.Hub.Config({ 1877 tex2jax: { 1878 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1879 processEscapes: true 1880 } 1881 }); 1882</script>
1882 1883
1884<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1885</script>
1885 1886
1887<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1888</script>
1888 1889 1890<p>Pretending I donât have a room full of tools and equipment.</p> 1891 1892<a class="post-preview" href="/posts/gnuradio-impedancetester-2"> 1893 <img alt="Learning about GNU Radio - Hooking up the impedance tester" src="/assets/2020-09-25-gnuradio-impedancetester-2/running.jpg"> 1894 </a></li><li><span class="post-meta">Aug 24, 2020</span> 1895 <h3> 1896 <a class="post-link" href="/posts/oldproject1"> 1897 Nostalgic interlude - Remembering a project from long ago 1898 </a> 1899 </h3><p>Undoing things that were never meant to come undone.</p> 1900 1901<a class="post-preview" href="/posts/oldproject1"> 1902 <img alt="Nostalgic interlude - Remembering a project from long ago" src="/assets/2020-08-24-oldproject1/newfan.jpg"> 1903 </a></li><li><span class="post-meta">Aug 21, 2020</span> 1904 <h3> 1905 <a class="post-link" href="/posts/gnuradio-impedancetester-1"> 1906 Learning about GNU Radio - How the impedance tester works 1907 </a> 1908 </h3>
1909<script type="text/x-mathjax-config"> 1910 MathJax.Hub.Config({ 1911 tex2jax: { 1912 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 1913 processEscapes: true 1914 } 1915 }); 1916</script>
1916 1917
1918<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 1919</script>
1919 1920
1921<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 1922</script>
1922 1923 1924<p>A program doing mostly what computers do best - math.</p> 1925 1926<a class="post-preview" href="/posts/gnuradio-impedancetester-1"> 1927 <img alt="Learning about GNU Radio - How the impedance tester works" src="/assets/2020-08-21-gnuradio-impedancetester-1/noisespectrum.png"> 1928 </a></li><li><span class="post-meta">Aug 16, 2020</span> 1929 <h3> 1930 <a class="post-link" href="/posts/gnuradio-impedancetester"> 1931 Learning about GNU Radio - A GNU Radio Companion flowgraph to measure impedance 1932 </a> 1933 </h3><p>A first (successful) experiment with GNU-Radio.</p> 1934 1935<a class="post-preview" href="/posts/gnuradio-impedancetester"> 1936 <img alt="Learning about GNU Radio - A GNU Radio Companion flowgraph to measure impedance" src="/assets/2020-08-16-impedancetester/plotter.png"> 1937 </a></li><li><span class="post-meta">Aug 16, 2020</span> 1938 <h3> 1939 <a class="post-link" href="/posts/1gnuradio-toc"> 1940 Learning about GNU Radio - Table of Contents 1941 </a> 1942 </h3><p>All about my experiments with <a href="https://www.gnuradio.org/">GNU Radio</a>.</p> 1943 1944<a class="post-preview" href="/posts/1gnuradio-toc"> 1945 <img alt="Learning about GNU Radio - Table of Contents" src="/assets/2020-08-16-impedancetester/plotter.png"> 1946 </a></li><li><span class="post-meta">Aug 3, 2020</span> 1947 <h3> 1948 <a class="post-link" href="/posts/soilmoisture-2"> 1949 Soil moisture monitoring in a flower garden - A little bit of planning 1950 </a> 1951 </h3><p>What am I doing here, anyhow?</p> 1952 1953<a class="post-preview" href="/posts/soilmoisture-2"> 1954 <img alt="Soil moisture monitoring in a flower garden - A little bit of planning" src="/assets/2020-08-03-soilmoisture2/yard.png"> 1955 </a></li><li><span class="post-meta">Jun 26, 2020</span> 1956 <h3> 1957 <a class="post-link" href="/posts/soilmoisture-1"> 1958 Soil moisture monitoring in a flower garden - An infrastucture for testing my ideas 1959 </a> 1960 </h3><p>A garden from the inside out - first the servers, then the yard work.</p> 1961 1962<a class="post-preview" href="/posts/soilmoisture-1"> 1963 <img alt="Soil moisture monitoring in a flower garden - An infrastucture for testing my ideas" src="/assets/2020-06-26-soilmoisture1/firstsetup.jpg"> 1964 </a></li><li><span class="post-meta">Jun 11, 2020</span> 1965 <h3> 1966 <a class="post-link" href="/posts/soilmoisture-toc"> 1967 All about my experiments in soil moisture monitoring 1968 </a> 1969 </h3><p>A list of all my posts on monitoring soil moisture in a flower garden.</p> 1970 1971<a class="post-preview" href="/posts/soilmoisture-toc"> 1972 <img alt="All about my experiments in soil moisture monitoring" src="/assets/2020-06-07-soilmoisture0/yard.jpg"> 1973 </a></li><li><span class="post-meta">Jun 7, 2020</span> 1974 <h3> 1975 <a class="post-link" href="/posts/soilmoisture0"> 1976 Soil moisture monitoring in a flower garden - A first look 1977 </a> 1978 </h3><p>How much is enough, and how do you know?</p> 1979 1980<a class="post-preview" href="/posts/soilmoisture0"> 1981 <img alt="Soil moisture monitoring in a flower garden - A first look" src="/assets/2020-06-07-soilmoisture0/yard.jpg"> 1982 </a></li><li><span class="post-meta">May 11, 2020</span> 1983 <h3> 1984 <a class="post-link" href="/posts/elf"> 1985 Generating extreme low frequency signals with a PC and an audio amplifier 1986 </a> 1987 </h3><p>I donât need this, but I did it anyway.</p> 1988 1989<a class="post-preview" href="/posts/elf"> 1990 <img alt="Generating extreme low frequency signals with a PC and an audio amplifier" src="/assets/2020-05-11-elf/gui.png"> 1991 </a></li><li><span class="post-meta">May 3, 2020</span> 1992 <h3> 1993 <a class="post-link" href="/posts/d43-persistance"> 1994 A persistence control for the D43 oscilloscope camera software 1995 </a> 1996 </h3><p>Making use of long sweep times.</p> 1997 1998<a class="post-preview" href="/posts/d43-persistance"> 1999 <img alt="A persistence control for the D43 oscilloscope camera software" src="/assets/2020-05-03-persistance/longsweep.jpg"> 2000 </a></li><li><span class="post-meta">May 1, 2020</span> 2001 <h3> 2002 <a class="post-link" href="/posts/am-multiplier"> 2003 A voltage multiplier and a crazy idea 2004 </a> 2005 </h3><p>Re-modulating the subflexive fasarta.</p> 2006 2007<a class="post-preview" href="/posts/am-multiplier"> 2008 <img alt="A voltage multiplier and a crazy idea" src="/assets/2020-05-01-am-multiplier/1.png"> 2009 </a></li><li><span class="post-meta">Apr 26, 2020</span> 2010 <h3> 2011 <a class="post-link" href="/posts/saltlamp-base"> 2012 Making the base for the salt block lamp 2013 </a> 2014 </h3><p>A crooked base for a crooked salt block.</p> 2015 2016<a class="post-preview" href="/posts/saltlamp-base"> 2017 <img alt="Making the base for the salt block lamp" src="/assets/2020-04-26-saltlamp_base/base18.jpg"> 2018 </a></li><li><span class="post-meta">Apr 17, 2020</span> 2019 <h3> 2020 <a class="post-link" href="/posts/previewimages"> 2021 Improving the blog 2022 </a> 2023 </h3><p>Making my posts more visible on search.</p> 2024 2025<a class="post-preview" href="/posts/previewimages"> 2026 <img alt="Improving the blog" src="/assets/2020-04-17-previewimages/preview.jpg"> 2027 </a></li><li><span class="post-meta">Apr 10, 2020</span> 2028 <h3> 2029 <a class="post-link" href="/posts/d43-dualtrace"> 2030 Dual traces and the Telequipment D43 oscilloscope 2031 </a> 2032 </h3><p>That ainât fair, thereâs twos of you there.</p> 2033 2034<a class="post-preview" href="/posts/d43-dualtrace"> 2035 <img alt="Dual traces and the Telequipment D43 oscilloscope" src="/assets/2020-04-10-d43-dualtrace/traces-cutoff.png"> 2036 </a></li><li><span class="post-meta">Apr 7, 2020</span> 2037 <h3> 2038 <a class="post-link" href="/posts/howtosolder-15-regular-or-unleaded"> 2039 HowTo: Solder by hand - Regular or unleaded 2040 </a> 2041 </h3><p>What kind of solder is best?</p> 2042 2043<a class="post-preview" href="/posts/howtosolder-15-regular-or-unleaded"> 2044 <img alt="HowTo: Solder by hand - Regular or unleaded" src="/assets/2020-04-07-howtosolder-15-regular_or_unleaded/solder.jpg"> 2045 </a></li><li><span class="post-meta">Apr 5, 2020</span> 2046 <h3> 2047 <a class="post-link" href="/posts/howtosolder-16-new-soldering-iron"> 2048 HowTo: Solder by hand - Meet my new soldering iron 2049 </a> 2050 </h3><p>The hardware store cheapy left me hanging.</p> 2051 2052<a class="post-preview" href="/posts/howtosolder-16-new-soldering-iron"> 2053 <img alt="HowTo: Solder by hand - Meet my new soldering iron" src="/assets/2020-04-05-howtosolder-16-new-soldering-iron/we1010.jpg"> 2054 </a></li><li><span class="post-meta">Apr 3, 2020</span> 2055 <h3> 2056 <a class="post-link" href="/posts/d43toc"> 2057 My Telequipment D43 projects - Table of Contents 2058 </a> 2059 </h3><p>All my posts about my Telequipment D43 analog oscilloscope in one spot.</p> 2060 2061<a class="post-preview" href="/posts/d43toc"> 2062 <img alt="My Telequipment D43 projects - Table of Contents" src="/assets/D43.jpg"> 2063 </a></li><li><span class="post-meta">Apr 3, 2020</span> 2064 <h3> 2065 <a class="post-link" href="/posts/d43hv"> 2066 The Telequipment D43 high voltage replacement board 2067 </a> 2068 </h3><p>What to do when your D43 explodes.</p> 2069 2070<a class="post-preview" href="/posts/d43hv"> 2071 <img alt="The Telequipment D43 high voltage replacement board" src="/assets/2020-04-03-d43hv/D43-PowerSupply_replacement.jpg"> 2072 </a></li><li><span class="post-meta">Mar 27, 2020</span> 2073 <h3> 2074 <a class="post-link" href="/posts/3-voltagebooster-toc"> 2075 The simple voltage booster - Table of Contents 2076 </a> 2077 </h3><p>All about the âArt Attackâ LED voltage booster project.</p> 2078 2079<a class="post-preview" href="/posts/3-voltagebooster-toc"> 2080 <img alt="The simple voltage booster - Table of Contents" src="/assets/voltagebooster/step19.jpg"> 2081 </a></li><li><span class="post-meta">Mar 27, 2020</span> 2082 <h3> 2083 <a class="post-link" href="/posts/2-saltlampcutting"> 2084 Returning to the salt block lamp 2085 </a> 2086 </h3><p>Preparing the salt block for mounting and lighting.</p> 2087 2088<a class="post-preview" href="/posts/2-saltlampcutting"> 2089 <img alt="Returning to the salt block lamp" src="/assets/2020-03-27-saltlamp/10.jpg"> 2090 </a></li><li><span class="post-meta">Mar 27, 2020</span> 2091 <h3> 2092 <a class="post-link" href="/posts/1-saltlamp-toc"> 2093 The salt block lamp - Table of Contents 2094 </a> 2095 </h3><p>All my posts on the salt block lamp.</p> 2096 2097<a class="post-preview" href="/posts/1-saltlamp-toc"> 2098 <img alt="The salt block lamp - Table of Contents" src="/assets/2020-03-27-saltlamp/10.jpg"> 2099 </a></li><li><span class="post-meta">Mar 24, 2020</span> 2100 <h3> 2101 <a class="post-link" href="/posts/fixthermocouple"> 2102 Fixing a K-type thermocouple 2103 </a> 2104 </h3><p>When cheap crap breaks and ordering a replacement will take too long.</p> 2105 2106<a class="post-preview" href="/posts/fixthermocouple"> 2107 <img alt="Fixing a K-type thermocouple" src="/assets/2020-03-24-fixthermocouple/thermocouple.jpg"> 2108 </a></li><li><span class="post-meta">Mar 22, 2020</span> 2109 <h3> 2110 <a class="post-link" href="/posts/howtosolder-14removesmdic"> 2111 HowTo: Solder by hand - Remove SMD ICs 2112 </a> 2113 </h3><p>They ainât pokemons - you canât get âem all.</p> 2114 2115<a class="post-preview" href="/posts/howtosolder-14removesmdic"> 2116 <img alt="HowTo: Solder by hand - Remove SMD ICs" src="/assets/2020-03-22-howtosolder-14-removesmdic/4.jpg"> 2117 </a></li><li><span class="post-meta">Mar 22, 2020</span> 2118 <h3> 2119 <a class="post-link" href="/posts/3-rfcamera-toc"> 2120 RF camera and radio telescope - Table of Contents 2121 </a> 2122 </h3><p>All about my experiments in photographing the invisible.</p> 2123 2124<a class="post-preview" href="/posts/3-rfcamera-toc"> 2125 <img alt="RF camera and radio telescope - Table of Contents" src="/assets/rfcamera/moon1.png"> 2126 </a></li><li><span class="post-meta">Mar 22, 2020</span> 2127 <h3> 2128 <a class="post-link" href="/posts/2-voltagemultiplier-toc"> 2129 Voltage multiplier experiments - Table of Contents 2130 </a> 2131 </h3><p>All my voltage multiplier experiments listed in one place.</p> 2132 2133<a class="post-preview" href="/posts/2-voltagemultiplier-toc"> 2134 <img alt="Voltage multiplier experiments - Table of Contents" src="/assets/voltage_multiplier/cockcroftwalton3_kicad.png"> 2135 </a></li><li><span class="post-meta">Mar 14, 2020</span> 2136 <h3> 2137 <a class="post-link" href="/posts/howtosolder-13soldersmdic"> 2138 HowTo: Solder by hand - Solder SMD ICs 2139 </a> 2140 </h3><p>Any SMD IC that has pins or pads that you can see, you can solder.</p> 2141 2142<a class="post-preview" href="/posts/howtosolder-13soldersmdic"> 2143 <img alt="HowTo: Solder by hand - Solder SMD ICs" src="/assets/2020-03-14-howtosolder-13-soldersmdic/3.jpg"> 2144 </a></li><li><span class="post-meta">Mar 1, 2020</span> 2145 <h3> 2146 <a class="post-link" href="/posts/howtosolder-12removesmdpassive"> 2147 HowTo: Solder by hand - Removing simple SMD parts 2148 </a> 2149 </h3><p>Anything you can see, you can remove.</p> 2150 2151<a class="post-preview" href="/posts/howtosolder-12removesmdpassive"> 2152 <img alt="HowTo: Solder by hand - Removing simple SMD parts" src="/assets/2020-03-01-howtosolder-12removesmdpassive/1206-4.jpg"> 2153 </a></li><li><span class="post-meta">Feb 27, 2020</span> 2154 <h3> 2155 <a class="post-link" href="/posts/howtosolder-11soldersmdpassive"> 2156 HowTo: Solder by hand - Soldering simple SMD parts 2157 </a> 2158 </h3><p>Anything you can see, you can solder.</p> 2159 2160<a class="post-preview" href="/posts/howtosolder-11soldersmdpassive"> 2161 <img alt="HowTo: Solder by hand - Soldering simple SMD parts" src="/assets/2020-02-27-howtosolder-11soldersmdpassive/1206-12.jpg"> 2162 </a></li><li><span class="post-meta">Feb 21, 2020</span> 2163 <h3> 2164 <a class="post-link" href="/posts/howtosolder-10soldersucker"> 2165 HowTo: Solder by hand - Using a solder sucker 2166 </a> 2167 </h3><p>Making good use of a cheap tool.</p> 2168 2169<a class="post-preview" href="/posts/howtosolder-10soldersucker"> 2170 <img alt="HowTo: Solder by hand - Using a solder sucker" src="/assets/2020-02-21-howtosolder-10soldersucker/soldersucker2.jpg"> 2171 </a></li><li><span class="post-meta">Feb 16, 2020</span> 2172 <h3> 2173 <a class="post-link" href="/posts/howtosolder-9throughhole-remove"> 2174 HowTo: Solder by hand - Remove through hole parts 2175 </a> 2176 </h3><p>Not the way most folks expect.</p> 2177 2178<a class="post-preview" href="/posts/howtosolder-9throughhole-remove"> 2179 <img alt="HowTo: Solder by hand - Remove through hole parts" src="/assets/2020-02-16-howtosolder-9throughhole-remove/solderpumpX.jpg"> 2180 </a></li><li><span class="post-meta">Feb 9, 2020</span> 2181 <h3> 2182 <a class="post-link" href="/posts/howtosolder-8throughhole"> 2183 HowTo: Solder by hand - Solder through hole parts 2184 </a> 2185 </h3><p>Some of the most common things youâll solder.</p> 2186 2187<a class="post-preview" href="/posts/howtosolder-8throughhole"> 2188 <img alt="HowTo: Solder by hand - Solder through hole parts" src="/assets/2020-02-09-howtosolder-8throughhole/perfboard4.jpg"> 2189 </a></li><li><span class="post-meta">Feb 8, 2020</span> 2190 <h3> 2191 <a class="post-link" href="/posts/howtosolder-7solderwire"> 2192 HowTo: Solder by hand - Solder wires together 2193 </a> 2194 </h3><p>Finally getting somewhere.</p> 2195 2196<a class="post-preview" href="/posts/howtosolder-7solderwire"> 2197 <img alt="HowTo: Solder by hand - Solder wires together" src="/assets/2020-02-08-howtosolder-7solderwire/solder3.jpg"> 2198 </a></li><li><span class="post-meta">Feb 6, 2020</span> 2199 <h3> 2200 <a class="post-link" href="/posts/howtosolder-6firststep"> 2201 HowTo: Solder by hand - First steps 2202 </a> 2203 </h3><p>Things are finally heating up.</p> 2204 2205<a class="post-preview" href="/posts/howtosolder-6firststep"> 2206 <img alt="HowTo: Solder by hand - First steps" src="/assets/2020-02-06-howtosolder-6brace/brace.jpg"> 2207 </a></li><li><span class="post-meta">Feb 5, 2020</span> 2208 <h3> 2209 <a class="post-link" href="/posts/howtosolder-5getstarted"> 2210 HowTo: Solder by hand - Before you get started 2211 </a> 2212 </h3><p>Make a habit of it.</p> 2213 2214<a class="post-preview" href="/posts/howtosolder-5getstarted"> 2215 <img alt="HowTo: Solder by hand - Before you get started" src="/assets/2020-02-06-howtosolder-5start/tin2.jpg"> 2216 </a></li><li><span class="post-meta">Feb 4, 2020</span> 2217 <h3> 2218 <a class="post-link" href="/posts/howtosolder-4materials"> 2219 HowTo: Solder by hand - Materials 2220 </a> 2221 </h3><p>Just a few things youâll use up.</p> 2222 2223</li><li><span class="post-meta">Feb 2, 2020</span> 2224 <h3> 2225 <a class="post-link" href="/posts/howtosolder-3tools"> 2226 HowTo: Solder by hand - Your tools 2227 </a> 2228 </h3><p>It really doesnât take that much.</p> 2229 2230<a class="post-preview" href="/posts/howtosolder-3tools"> 2231 <img alt="HowTo: Solder by hand - Your tools" src="/assets/2020-02-02-howtosolder-3tools/tools.jpg"> 2232 </a></li><li><span class="post-meta">Feb 2, 2020</span> 2233 <h3> 2234
2234 <a class="post-link" href="/posts/howtosolder-2workplace"> 2235 HowTo: Solder by hand - Your work place 2236 </a> 2237 </h3><p>Youâve got to get close to your work.</p> 2238 2239</li><li><span class="post-meta">Feb 2, 2020</span> 2240 <h3> 2241 <a class="post-link" href="/posts/howtosolder-1visioncheck"> 2242 HowTo: Solder by hand - Vision check 2243 </a> 2244 </h3><p>You canât solder what you canât see.</p> 2245 2246<a class="post-preview" href="/posts/howtosolder-1visioncheck"> 2247 <img alt="HowTo: Solder by hand - Vision check" src="/assets/2020-02-02-howtosolder-1visioncheck/example.png"> 2248 </a></li><li><span class="post-meta">Feb 1, 2020</span> 2249 <h3> 2250 <a class="post-link" href="/posts/howtosolder-toc"> 2251 HowTo: Solder by hand - Table of Contents 2252 </a> 2253 </h3><p>All the steps it takes to master your soldering iron.</p> 2254 2255<a class="post-preview" href="/posts/howtosolder-toc"> 2256 <img alt="HowTo: Solder by hand - Table of Contents" src="/assets/2020-02-02-howtosolder-3tools/tools.jpg"> 2257 </a></li><li><span class="post-meta">Feb 1, 2020</span> 2258 <h3> 2259 <a class="post-link" href="/posts/howtosolder-intro"> 2260 HowTo: Solder by hand - An introduction 2261 </a> 2262 </h3><p>Learn a basic skill for your electronics hobby.</p> 2263 2264<a class="post-preview" href="/posts/howtosolder-intro"> 2265 <img alt="HowTo: Solder by hand - An introduction" src="/assets/2020-02-01-howtosolder/conchoback.jpg"> 2266 </a></li><li><span class="post-meta">Jan 31, 2020</span> 2267 <h3> 2268 <a class="post-link" href="/posts/eyegore"> 2269 EyeGore - The mad scientist's helper 2270 </a> 2271 </h3> 2272<p>When you absolutely positively have to convince your wife that youâve lost your marbles.</p> 2273 2274<a class="post-preview" href="/posts/eyegore"> 2275 <img alt="EyeGore - The mad scientist's helper" src="/assets/2020-01-31-eyegore/eyegore.png"> 2276 </a></li><li><span class="post-meta">Jan 27, 2020</span> 2277 <h3> 2278 <a class="post-link" href="/posts/boxobuttons"> 2279 The box o' buttons 2280 </a> 2281 </h3> 2282<p>Ten, because two is a stupid number.</p> 2283 2284<a class="post-preview" href="/posts/boxobuttons"> 2285 <img alt="The box o' buttons" src="/assets/2020-01-27-buttons/buttonbox.jpg"> 2286 </a></li><li><span class="post-meta">Jan 25, 2020</span> 2287 <h3> 2288 <a class="post-link" href="/posts/workbench"> 2289 Upgrading the workbench 2290 </a> 2291 </h3> 2292<p>Making better use of the D43 software.</p> 2293 2294<a class="post-preview" href="/posts/workbench"> 2295 <img alt="Upgrading the workbench" src="/assets/workbench/workbench.jpg"> 2296 </a></li><li><span class="post-meta">Dec 28, 2019</span> 2297 <h3> 2298 <a class="post-link" href="/posts/peaceofmind"> 2299 Portable peace of mind 2300 </a> 2301 </h3> 2302<p>A backstop for partiers.</p> 2303 2304<a class="post-preview" href="/posts/peaceofmind"> 2305 <img alt="Portable peace of mind" src="/assets/partyalarm/frontview.jpg"> 2306 </a></li><li><span class="post-meta">Nov 30, 2019</span> 2307 <h3> 2308 <a class="post-link" href="/posts/1-hatband"> 2309 The cellphone detecting hat band concho 2310 </a> 2311 </h3>
2312<script type="text/x-mathjax-config"> 2313 MathJax.Hub.Config({ 2314 tex2jax: { 2315 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2316 processEscapes: true 2317 } 2318 }); 2319</script>
2319 2320
2321<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2322</script>
2322 2323
2324<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2325</script>
2325 2326 2327<p><a href="https://github.com/JosephEoff/RF-Concho">A hat band fit for a nerd.</a></p> 2328 2329<a class="post-preview" href="/posts/1-hatband"> 2330 <img alt="The cellphone detecting hat band concho" src="/assets/hatband/conchofront.jpg"> 2331 </a></li><li><span class="post-meta">Nov 23, 2019</span> 2332 <h3> 2333 <a class="post-link" href="/posts/1-rfcamera6"> 2334 Photographing the invisible - software to display what the hardware saw 2335 </a> 2336 </h3>
2337<script type="text/x-mathjax-config"> 2338 MathJax.Hub.Config({ 2339 tex2jax: { 2340 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2341 processEscapes: true 2342 } 2343 }); 2344</script>
2344 2345
2346<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2347</script>
2347 2348
2349<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2350</script>
2350 2351 2352<p>A work in progress.</p> 2353 2354<a class="post-preview" href="/posts/1-rfcamera6"> 2355 <img alt="Photographing the invisible - software to display what the hardware saw" src="/assets/rfcamera/moonfalsecolor.png"> 2356 </a></li><li><span class="post-meta">Nov 10, 2019</span> 2357 <h3> 2358 <a class="post-link" href="/posts/rfcamera5"> 2359 Photographing the invisible - software to drive the hardware 2360 </a> 2361 </h3>
2362<script type="text/x-mathjax-config"> 2363 MathJax.Hub.Config({ 2364 tex2jax: { 2365 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2366 processEscapes: true 2367 } 2368 }); 2369</script>
2369 2370
2371<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2372</script>
2372 2373
2374<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2375</script>
2375 2376 2377<p>An Arduino program as firmware.</p> 2378 2379</li><li><span class="post-meta">Nov 6, 2019</span> 2380 <h3> 2381 <a class="post-link" href="/posts/rfcamera4"> 2382 Photographing the invisible - the interesting hardware 2383 </a> 2384 </h3>
2385<script type="text/x-mathjax-config"> 2386 MathJax.Hub.Config({ 2387 tex2jax: { 2388 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2389 processEscapes: true 2390 } 2391 }); 2392</script>
2392 2393
2394<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2395</script>
2395 2396
2397<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2398</script>
2398 2399 2400<p><strong>Not</strong> the hardware store stuff, but the electronics.</p> 2401 2402<a class="post-preview" href="/posts/rfcamera4"> 2403 <img alt="Photographing the invisible - the interesting hardware" src="/assets/rfcamera/karl-pcb.jpg"> 2404 </a></li><li><span class="post-meta">Nov 5, 2019</span> 2405 <h3> 2406 <a class="post-link" href="/posts/rfcamera3"> 2407 Photographing the invisible - building the hardware 2408 </a> 2409 </h3>
2410<script type="text/x-mathjax-config"> 2411 MathJax.Hub.Config({ 2412 tex2jax: { 2413 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2414 processEscapes: true 2415 } 2416 }); 2417</script>
2417 2418
2419<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2420</script>
2420 2421
2422<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2423</script>
2423 2424 2425<p>Hardware store stuff - not the electronics.</p> 2426 2427<a class="post-preview" href="/posts/rfcamera3"> 2428 <img alt="Photographing the invisible - building the hardware" src="/assets/rfcamera/firstrig.jpg"> 2429 </a></li><li><span class="post-meta">Nov 4, 2019</span> 2430 <h3> 2431 <a class="post-link" href="/posts/2-rfcamera2"> 2432 Photographing the invisible - the very first steps 2433 </a> 2434 </h3>
2435<script type="text/x-mathjax-config"> 2436 MathJax.Hub.Config({ 2437 tex2jax: { 2438 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2439 processEscapes: true 2440 } 2441 }); 2442</script>
2442 2443
2444<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2445</script>
2445 2446
2447<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2448</script>
2448 2449 2450<p>Is this even worth trying?</p> 2451 2452<a class="post-preview" href="/posts/2-rfcamera2"> 2453 <img alt="Photographing the invisible - the very first steps" src="/assets/rfcamera/satfinder-lnb.jpg"> 2454 </a></li><li><span class="post-meta">Nov 4, 2019</span> 2455 <h3> 2456 <a class="post-link" href="/posts/1-singleshot"> 2457 Implementing a one-shot capture function for the D43 2458 </a> 2459 </h3>
2460<script type="text/x-mathjax-config"> 2461 MathJax.Hub.Config({ 2462 tex2jax: { 2463 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2464 processEscapes: true 2465 } 2466 }); 2467</script>
2467 2468
2469<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2470</script>
2470 2471
2472<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2473</script>
2473 2474 2475<p>A slight change in plans.</p> 2476 2477<a class="post-preview" href="/posts/1-singleshot"> 2478 <img alt="Implementing a one-shot capture function for the D43" src="/assets/2020-01-27-buttons/transition_down.png"> 2479 </a></li><li><span class="post-meta">Nov 1, 2019</span> 2480 <h3> 2481 <a class="post-link" href="/posts/rfcamera"> 2482 Photographing the invisible - a camera for microwaves 2483 </a> 2484 </h3>
2485<script type="text/x-mathjax-config"> 2486 MathJax.Hub.Config({ 2487 tex2jax: { 2488 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2489 processEscapes: true 2490 } 2491 }); 2492</script>
2492 2493
2494<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2495</script>
2495 2496
2497<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2498</script>
2498 2499 2500<p>Inspired to follow a childhood dream.</p> 2501 2502<a class="post-preview" href="/posts/rfcamera"> 2503 <img alt="Photographing the invisible - a camera for microwaves" src="/assets/rfcamera/window1.png"> 2504 </a></li><li><span class="post-meta">Oct 27, 2019</span> 2505 <h3> 2506 <a class="post-link" href="/posts/leddriver"> 2507 The Sunday afternoon junkbox LED driver 2508 </a> 2509 </h3>
2510<script type="text/x-mathjax-config"> 2511 MathJax.Hub.Config({ 2512 tex2jax: { 2513 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2514 processEscapes: true 2515 } 2516 }); 2517</script>
2517 2518
2519<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2520</script>
2520 2521
2522<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2523</script>
2523 2524 2525<p>Whiling away a rainy Sunday afternoon with a block of salt and an LED.</p> 2526 2527<a class="post-preview" href="/posts/leddriver"> 2528 <img alt="The Sunday afternoon junkbox LED driver" src="/assets/rocksaltlamp/dim.jpg"> 2529 </a></li><li><span class="post-meta">Oct 22, 2019</span> 2530 <h3> 2531 <a class="post-link" href="/posts/new-oscilloscope-camera"> 2532 A new camera for the D43 2533 </a> 2534 </h3>
2535<script type="text/x-mathjax-config"> 2536 MathJax.Hub.Config({ 2537 tex2jax: { 2538 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2539 processEscapes: true 2540 } 2541 }); 2542</script>
2542 2543
2544<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2545</script>
2545 2546
2547<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2548</script>
2548 2549 2550<p>That was easier than expected.</p> 2551 2552<a class="post-preview" href="/posts/new-oscilloscope-camera"> 2553 <img alt="A new camera for the D43" src="/assets/newcamera/newcamera.jpg"> 2554 </a></li><li><span class="post-meta">Oct 20, 2019</span> 2555 <h3> 2556 <a class="post-link" href="/posts/electricalenergy"> 2557 Electrical energy: volts, amperes, watts, joules - and play-doh 2558 </a> 2559 </h3>
2560<script type="text/x-mathjax-config"> 2561 MathJax.Hub.Config({ 2562 tex2jax: { 2563 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2564 processEscapes: true 2565 } 2566 }); 2567</script>
2567 2568
2569<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2570</script>
2570 2571
2572<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2573</script>
2573 2574 2575<p>Visualizing the invisible with a childâs toy.</p> 2576 2577<a class="post-preview" href="/posts/electricalenergy"> 2578 <img alt="Electrical energy: volts, amperes, watts, joules - and play-doh" src="/assets/energy/1joule.jpg"> 2579 </a></li><li><span class="post-meta">Oct 11, 2019</span> 2580 <h3> 2581 <a class="post-link" href="/posts/booster-why"> 2582 One last word about the simple voltage booster 2583 </a> 2584 </h3>
2585<script type="text/x-mathjax-config"> 2586 MathJax.Hub.Config({ 2587 tex2jax: { 2588 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2589 processEscapes: true 2590 } 2591 }); 2592</script>
2592 2593
2594<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2595</script>
2595 2596
2597<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2598</script>
2598 2599 2600<p>Ulterior motives revealed.</p> 2601 2602<a class="post-preview" href="/posts/booster-why"> 2603 <img alt="One last word about the simple voltage booster" src="/assets/voltagebooster/boostercircuit_alternative.png"> 2604 </a></li><li><span class="post-meta">Oct 10, 2019</span> 2605 <h3> 2606 <a class="post-link" href="/posts/inductor"> 2607 Revisiting the inductor for the simple voltage booster 2608 </a> 2609 </h3>
2610<script type="text/x-mathjax-config"> 2611 MathJax.Hub.Config({ 2612 tex2jax: { 2613 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2614 processEscapes: true 2615 } 2616 }); 2617</script>
2617 2618
2619<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2620</script>
2620 2621
2622<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2623</script>
2623 2624 2625<p><em>âMissed it by <strong>that</strong> much.â</em> - <a href="https://www.youtube.com/watch?v=oPwrodxghrw">Maxwell Smart</a></p> 2626 2627<a class="post-preview" href="/posts/inductor"> 2628 <img alt="Revisiting the inductor for the simple voltage booster" src="/assets/inductor/measurementcircuit.png"> 2629 </a></li><li><span class="post-meta">Oct 7, 2019</span> 2630 <h3> 2631 <a class="post-link" href="/posts/voltagebooster-pt2"> 2632 How the simple voltage booster works 2633 </a> 2634 </h3>
2635<script type="text/x-mathjax-config"> 2636 MathJax.Hub.Config({ 2637 tex2jax: { 2638 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2639 processEscapes: true 2640 } 2641 }); 2642</script>
2642 2643
2644<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2645</script>
2645 2646
2647<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2648</script>
2648 2649 2650<p>Time to get abstract.</p> 2651 2652<a class="post-preview" href="/posts/voltagebooster-pt2"> 2653 <img alt="How the simple voltage booster works" src="/assets/voltagebooster/boosterlight.png"> 2654 </a></li><li><span class="post-meta">Oct 6, 2019</span> 2655 <h3> 2656 <a class="post-link" href="/posts/voltagebooster"> 2657 Fun time - A voltage booster so simple a child can build it 2658 </a> 2659 </h3><p>Electronics - <a href="https://en.wikipedia.org/wiki/Art_Attack">âArt Attackâ style.</a></p> 2660 2661<a class="post-preview" href="/posts/voltagebooster"> 2662 <img alt="Fun time - A voltage booster so simple a child can build it" src="/assets/voltagebooster/step19.jpg"> 2663 </a></li><li><span class="post-meta">Oct 5, 2019</span> 2664 <h3> 2665 <a class="post-link" href="/posts/diode-capacitors-volts-pt8"> 2666 Voltage multipliers - Part 8 Wrap up 2667 </a> 2668 </h3>
2669<script type="text/x-mathjax-config"> 2670 MathJax.Hub.Config({ 2671 tex2jax: { 2672 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2673 processEscapes: true 2674 } 2675 }); 2676</script>
2676 2677
2678<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2679</script>
2679 2680
2681<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2682</script>
2682 2683 2684<p>Enoughâs enough.</p> 2685 2686<a class="post-preview" href="/posts/diode-capacitors-volts-pt8"> 2687 <img alt="Voltage multipliers - Part 8 Wrap up" src="/assets/voltage_multiplier/D43-PowerSupply_new.png"> 2688 </a></li><li><span class="post-meta">Aug 21, 2019</span> 2689 <h3> 2690 <a class="post-link" href="/posts/diode-capacitors-volts-pt7"> 2691 Voltage multipliers - Part 7 Impedance of the Cockcroft-Walton voltage multiplier 2692 </a> 2693 </h3>
2694<script type="text/x-mathjax-config"> 2695 MathJax.Hub.Config({ 2696 tex2jax: { 2697 inlineMath: [ ['$','$'], ["\\(","\\)"] ], 2698 processEscapes: true 2699 } 2700 }); 2701</script>
2701 2702
2703<script type="text/javascript" charset="utf-8" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> 2704</script>
2704 2705
2706<script type="text/javascript" charset="utf-8" src="https://vincenttam.github.io/javascripts/MathJaxLocal.js"> 2707</script>
2707 2708 2709<p>That got complicated real quick.</p> 2710 2711<a class="post-preview" href="/posts/diode-capacitors-volts-pt7"> 2712 <img alt="Voltage multipliers - Part 7 Impedance of the Cockcroft-Walton voltage multiplier" src="/assets/voltage_multiplier/impedancecurve.png"> 2713 </a></li><li><span class="post-meta">Aug 21, 2019</span> 2714 <h3> 2715 <a class="post-link" href="/posts/diode-capacitors-volts-pt6"> 2716 Voltage multipliers - Part 6 Impedance and current in voltage multipliers 2717 </a> 2718 </h3><p>Where did my voltage go?</p> 2719 2720<a class="post-preview" href="/posts/diode-capacitors-volts-pt6"> 2721 <img alt="Voltage multipliers - Part 6 Impedance and current in voltage multipliers" src="/assets/voltage_multiplier/scopeimpedance_setup.png"> 2722 </a></li><li><span class="post-meta">Aug 21, 2019</span> 2723 <h3> 2724 <a class="post-link" href="/posts/diode-capacitors-volts-pt5"> 2725 Voltage multipliers - Part 5 Tying it all together 2726 </a> 2727 </h3><p>Havenât we met before?</p> 2728 2729<a class="post-preview" href="/posts/diode-capacitors-volts-pt5"> 2730 <img alt="Voltage multipliers - Part 5 Tying it all together" src="/assets/voltage_multiplier/cockcroftwalton3_kicad.png"> 2731 </a></li><li><span class="post-meta">Aug 18, 2019</span> 2732 <h3> 2733 <a class="post-link" href="/posts/diode-capacitors-volts-pt4"> 2734 Voltage multipliers - Part 4 More on the Cockcroft-Walton voltage multiplier 2735 </a> 2736 </h3><p>Why do something that looks like a problem?</p> 2737 2738<a class="post-preview" href="/posts/diode-capacitors-volts-pt4"> 2739 <img alt="Voltage multipliers - Part 4 More on the Cockcroft-Walton voltage multiplier" src="/assets/voltage_multiplier/parallelstages.png"> 2740 </a></li><li><span class="post-meta">Aug 18, 2019</span> 2741 <h3> 2742 <a class="post-link" href="/posts/diode-capacitors-volts-pt3"> 2743 Voltage multipliers - Part 3 The Cockcroft-Walton voltage multiplier 2744 </a> 2745 </h3><p>The big league.</p> 2746 2747<a class="post-preview" href="/posts/diode-capacitors-volts-pt3"> 2748 <img alt="Voltage multipliers - Part 3 The Cockcroft-Walton voltage multiplier" src="/assets/voltage_multiplier/cockcroftwalton2_DC.png"> 2749 </a></li><li><span class="post-meta">Aug 17, 2019</span> 2750 <h3> 2751 <a class="post-link" href="/posts/diode-capacitors-volts-pt2"> 2752 Voltage multipliers - Part 2 The Greinacher voltage doubler 2753 </a> 2754 </h3><p>Getting better.</p> 2755 2756<a class="post-preview" href="/posts/diode-capacitors-volts-pt2"> 2757 <img alt="Voltage multipliers - Part 2 The Greinacher voltage doubler" src="/assets/voltage_multiplier/greinacher_DC.png"> 2758 </a></li><li><span class="post-meta">Aug 17, 2019</span> 2759 <h3> 2760 <a class="post-link" href="/posts/diode-capacitors-volts-pt1"> 2761 Voltage multipliers - Part 1 The Villard voltage doubler 2762 </a> 2763 </h3><p>Start with the simple things.</p> 2764 2765<a class="post-preview" href="/posts/diode-capacitors-volts-pt1"> 2766 <img alt="Voltage multipliers - Part 1 The Villard voltage doubler" src="/assets/voltage_multiplier/villard_DC.png"> 2767 </a></li><li><span class="post-meta">Aug 16, 2019</span> 2768 <h3> 2769 <a class="post-link" href="/posts/diode-capacitors-volts"> 2770 Diodes and capacitors and volts - Oh, my! 2771 </a> 2772 </h3><p>Letâs talk about voltage multipliers.</p> 2773 2774<a class="post-preview" href="/posts/diode-capacitors-volts"> 2775 <img alt="Diodes and capacitors and volts - Oh, my!" src="/assets/voltage_multiplier/diode_caps_volts.jpg"> 2776 </a></li><li><span class="post-meta">Aug 9, 2019</span> 2777 <h3> 2778 <a class="post-link" href="/posts/simple-signal-generator"> 2779 A simple signal generator 2780 </a> 2781 </h3><p>Making your own tools.</p> 2782 2783<a class="post-preview" href="/posts/simple-signal-generator"> 2784 <img alt="A simple signal generator" src="/assets/100kHz.png"> 2785 </a></li><li><span class="post-meta">Aug 8, 2019</span> 2786 <h3> 2787 <a class="post-link" href="/posts/camera-design-considerations"> 2788 Oscilloscope camera adapter design considerations 2789 </a> 2790 </h3><p>
2790Hardware for the software.</p> 2791 2792<a class="post-preview" href="/posts/camera-design-considerations"> 2793 <img alt="Oscilloscope camera adapter design considerations" src="/assets/OldCameramount.jpg"> 2794 </a></li><li><span class="post-meta">Jun 14, 2019</span> 2795 <h3> 2796 <a class="post-link" href="/posts/oscilloscope-camera"> 2797 A digital camera for analog oscilloscopes 2798 </a> 2799 </h3><p>New tricks for old dogs.</p> 2800 2801<a class="post-preview" href="/posts/oscilloscope-camera"> 2802 <img alt="A digital camera for analog oscilloscopes" src="/assets/testpattern.png"> 2803 </a></li><li><span class="post-meta">Jun 13, 2019</span> 2804 <h3> 2805 <a class="post-link" href="/posts/setup"> 2806 Github pages setup 2807 </a> 2808 </h3><p>The trials and tribulations of carrying out a âtrivialâ task.</p> 2809 2810</li></ul> 2811 2812 <p class="rss-subscribe">subscribe <a href="/feed.xml">via RSS</a></p></div> 2813 2814 </div> 2815 </main><footer class="site-footer h-card"> 2816 <data class="u-url" href="/"></data> 2817 2818 <div class="wrapper"> 2819 2820 <h2 class="footer-heading">JRE's Project Blog</h2> 2821 2822 <div class="footer-col-wrapper"> 2823 <div class="footer-col footer-col-1"> 2824 <ul class="contact-list"> 2825 <li class="p-name">Joseph R. Eoff</li></ul> 2826 </div> 2827 2828 <div class="footer-col footer-col-2"><ul class="social-media-list"></ul> 2829</div> 2830 2831 <div class="footer-col footer-col-3"> 2832 <p>A place to talk about my projects</p> 2833 </div> 2834 </div> 2835 2836 </div> 2837 2838</footer> 2839</body> 2840 2841</html>
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.