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Silvertone 7407 Tuner-Amplifiers
#2

As promised, I finally got a couple pictures here. After confirming the one unit has bad IFs in the AM stage and a broken amplifier plug wire, I finally combined what I had into one good unit. It plays quite well now, though I would say it's only 95% there. For one thing, I need to redo or have one of the muliplex boxes redone. Turns out these have two little electrolytics in them that go bad and they are buried behind everything else! Of course.. Icon_problem  Actually, I could probably get to one of them if I had a true soldering pencil, but I lack one of those right now. So, redo one of the boxes, get some new #49 and #51 type bulbs and I should be in business. The amp and tuner out of the beat up cabinet look really clean and good. I think I saw a few new parts on the tuner and it definitely appears my late friend recapped the amp on this one. Put in a more matched set of tubes into the amp (though one 12AX7 is a bit weaker than the other, I couldn't find a matched pair.) and I think I can label it as stable for now. I just wish I had something to test the phono input with! Cost on this project so far, zero dollars! I was given the stereos by my friend's dad and most of the tubes were also given to me. Really, the only think I have money in are the 12AX7's and the 6BQ5's and all those were from a trade with spares left over.

   

The FM multiplex box.

   

No matter where you go, there you are.


Messages In This Thread
Silvertone 7407 Tuner-Amplifiers - by Jayce - 06-19-2018, 09:05 PM
RE: Silvertone 7407 Tuner-Amplifiers - by Jayce - 06-21-2018, 01:25 PM
RE: Silvertone 7407 Tuner-Amplifiers - by 35Z5 - 06-21-2018, 02:11 PM
RE: Silvertone 7407 Tuner-Amplifiers - by Jayce - 06-21-2018, 02:35 PM
RE: Silvertone 7407 Tuner-Amplifiers - by Jayce - 06-21-2018, 05:35 PM
RE: Silvertone 7407 Tuner-Amplifiers - by 35Z5 - 06-21-2018, 07:31 PM
RE: Silvertone 7407 Tuner-Amplifiers - by Jayce - 06-21-2018, 07:40 PM



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