Posts: 98
Threads: 9
Joined: Apr 2021
City: CLARKSTON
State, Province, Country: MI
Well...the power chassis is a mess. The interstage transformer has an open primary, one choke is open, and the AVC 6J5 is broken. Theory that I have is the filter cap shorted, which caused excessive current through the choke, which burned out. This is on the side with the candohm voltage divider resistors; if the choke goes open, no current flows, which means no bias voltage source. As the 6F6 driver is fixed bias and fed from the other power transformer, no bias caused excessive plate current, which burned out the interstage primary winding. Oh, well.....
Messages In This Thread
RE: 38-690 Code 125 - by RGK20m3 - 12-02-2021, 07:35 PM
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Recent Posts
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54C Complete Teardown/Rebuild
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| Hello Roy,
here is this one
sincerely Richardradiorich — 12:45 AM |
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54C Complete Teardown/Rebuild
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| Richard,
Had grabbed it already but thank you just the same. I find myself wanting to find some way to block out the...glyphmon — 12:03 AM |
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54C Complete Teardown/Rebuild
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| Hello roy,
here is a link to the schematic .
Sincerely Richardradiorich — 11:54 PM |
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54C Complete Teardown/Rebuild
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| Richard,
The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM |
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Preliminary work on wife's Silvertone 2014
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| Did an alignment today which was interesting. IF alignment went great, almost all was already spot-on. Adjusting on th...glyphmon — 11:35 PM |
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54C Complete Teardown/Rebuild
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| The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM |
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54C Cabinet Refinish
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I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM |
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54C Complete Teardown/Rebuild
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| While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project. O...glyphmon — 11:07 PM |
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Preliminary work on wife's Silvertone 2014
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| Hello roy,
that great news glad it worked out for you !!
Sincerely Richardradiorich — 10:50 PM |
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Preliminary work on wife's Silvertone 2014
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| Safety caps arrived today. Soldered one in and had a successful first power-up. No magic smoke escaped and it tunes in...glyphmon — 09:53 PM |
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