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  1. Replies
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    Peavey Classic A & B tremolo intermittent

    Hey MEF guys. Have a 1977 Peavey Classic A & B that I've been rebuilding. Had to replace the power transformer to get it to turn on and make noise. After getting sound out if the amp the tremolo...
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    I've been working on a classic a&b lately. Had to...

    I've been working on a classic a&b lately. Had to do a lot of repairs to the power section to get it to work. Got it making good sound but the tremolo wouldn't work at first. After awhile of playing...
  3. Very cool amp. Have one on my bench. It's a...

    Very cool amp. Have one on my bench. It's a friend of mine's. Been cutting out on him while playing at live levels in a doom metal band. Opened it up didn't see any obvious failures. I lifted a few...
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    Got it working. Used a Basler Tube Amp Power...

    Got it working. Used a Basler Tube Amp Power Transformer 120 VAC 6.3V 6.5A 300-350V 28 VCT BE32901001 from eBay. Had to wire an artificial center tap to the 6.3v winding but it seemed to do the...
  5. Another great thread. Helped me with an identical...

    Another great thread. Helped me with an identical problem. I changed out q6,7,8 & 9 amp is back in service.
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    The HV and heater trans is from a RCA TCS-127...

    The HV and heater trans is from a RCA TCS-127 Console TV. The trans used for the bias is definitely insufficient. It's all coming out. Going to give the cheapo import a try. Thanks all for your help.
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    Only way I can make sense of things is to apply...

    Only way I can make sense of things is to apply them to physical real world objects. Now I understand it as a throttle return spring. Had to do some reading last night.
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    Yes it has two transformers wired up. 83-611-000...

    Yes it has two transformers wired up.
    83-611-000 / 130012 = wired to the HV and another set of wires used for fills

    17-7248 / F-46X = being used for bias

    I started to try and figure out what...
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    Big difference in price for the transformer with...

    Big difference in price for the transformer with the separate winding for the bias winding. I'll keep my eyes out for another solution. The Hammond one is way over the top. I might try to use a...
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    I see the amp isn't worth much. If I would have...

    I see the amp isn't worth much. If I would have noticed the botched transformer install I may have passed on it but I like learning new stuff so now I'm into it.
    Try to understand how the bias...
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    Glad I found this thread. I was able to get one...

    Glad I found this thread. I was able to get one of these classic A & B's off CL recently. Mine is in terrible shape compared to the one in the picture. Someone had shoehorned a different power...
  12. Yes... It's been a lifelong problem. Cheap, loud...

    Yes... It's been a lifelong problem. Cheap, loud amps make me smile.
  13. I'll do some experiments with these ideas. Thanks...

    I'll do some experiments with these ideas. Thanks again.
  14. Thanks for the suggestions PDF and glebert. Maybe...

    Thanks for the suggestions PDF and glebert. Maybe a dual gang pot wired in with some resistors to allow adjustments? Trying to understand how this is attenuating the signal. Is it because ir14 is...
  15. Peavey Mace/Deuce VT fx loop sensitivity mod?

    Hey forum, first post here. Nice place you guys have. I've read alot of good info in these threads.

    Old Peavey Mace/Deuce/Classic VT's have an effects loop, pretty cool for an older amp like this....
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