The Amp Garage

Those old Ampegs; VT22/V4, etc, are beasts! Powerful, flexible tone machines that weigh a ton. Problem is that there's a lot of heat constantly baking the circuit boards. Repairs are often very labor intensive when compared to other amps. I have rebuilt one in my life, but I'll not be doing it again...

I am so confused. Please guide me to a schematic.....I can't follow the content because I have no schematic. My apologies if it's in plain view, but hidden well..... Thanks for all your contributions. I have original 5F11 and 5E3; both rough. I'd love to do before/after clips, but I need/want some g...

I don't want to sound so negative, but......
If they are anything like the 12" Oxford that came in my old Deluxe Reverb, they suck for Dumble tone. I haven't heard them in a proper D-style cabinet, though.
Only my opinion, YMMV.

Best of luck in your venture!

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I don't know if I can help much, but I'd like to see a diagram of the existing circuit so I'll (we'll) know what you're starting with.

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I understand the previous opinions regarding using Solens as power supply caps, but what about cathode bypass caps? Has anyone A-B'd them with the standard electrolytic in that position?
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Thanks for the "string" trick, Stevem. Great idea!
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TM: I need an octet of EL34/KT77/6CA7 (HiFi rig with VTL Compact 100's) that can handle 525vdc B+
Do you like the 6CA7 from JJ?

"high plate, non-hrm, skyliner with JJ big bottle 6CA7's"

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The Earth is a beast. I rebuilt one into a Plexi 100....BEAST!

12AY7 in the effects loop?
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If it has ribbon cable, it's disposable.

Could you post a schematic for the "mod", please? It would help us to help you.
C50 appears to me to be a high-frequency attenuator, probably to roll off the highs for headphone listening.
Let us see the circuit and maybe we can figgure this out.
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Speaker?

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Yep. That'll work, I think.
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There should be a connection between the "bottom" of the treble control to the "top" of the bass control. Just one wire missing. If you make that connection (missing on your layout, too), your tone section should start working. Also, I think that you may have your bass and mid caps reversed... But t...