https://30s1.tigerfire.ca/mediawiki/index.php?action=history&feed=atom&title=CR216_and_BIAS_Multi-Metering 2026-05-07T13:22:03Z Revision history for this page on the wiki MediaWiki 1.43.8 https://30s1.tigerfire.ca/mediawiki/index.php?title=CR216_and_BIAS_Multi-Metering&diff=484&oldid=prev 2020-08-12T18:01:11Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:01, 12 August 2020</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 8:</td> <td colspan="2" class="diff-lineno">Line 8:</td> </tr> <tr> <td class="diff-marker"></td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td> <td class="diff-marker"></td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:1n4005_replacement_cr216.jpg|500px|thumb|center]]</div></td> <td class="diff-marker"></td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:1n4005_replacement_cr216.jpg|500px|thumb|center]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Repair|Back to Repair]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Primary AC Wiring]]</div></td> </tr> </table>

Gordonp https://30s1.tigerfire.ca/mediawiki/index.php?title=CR216_and_BIAS_Multi-Metering&diff=482&oldid=prev 2020-08-12T17:58:48Z

<p>Created page with &quot;Working around the panel switches led me to examine CR216. The old-school top-hat rectifier probably had 6-decades of mileage under it&#039;s belt, and carrier-recombination likely...&quot;</p> <p><b>New page</b></p><div>Working around the panel switches led me to examine CR216. The old-school top-hat rectifier probably had 6-decades of mileage under it&#039;s belt, and carrier-recombination likely softened it. Replace! I still had 1N4005&#039;s on-hand... Once removed, CR216 exhibited 3.2-ohms in both directions - it was completely useless as a diode, and vindicated my decision to update it!<br /> <br /> [[File:Dead_cr216.jpg|500px|thumb|center]]<br /> <br /> Collins added this diode CR216 and some associated components with Service Bulletin SB-1, Jun 21/61.<br /> <br /> The new CR216. I also checked the associated resistors. These follow Collins&#039; Service Bulletin SB-1 (1961). I wonder if previous owners may have seen crazy grid-metering?<br /> <br /> [[File:1n4005_replacement_cr216.jpg|500px|thumb|center]]</div>

Gordonp