Tube Amp Archive

Hey Tom, Actually, I have the Crest model, which has a 6c4 tube in the reverb circuit instead of the 7199. I'm not planning on changing that part of the amp back to Tweed specs, just the input/preamp and phase inverter circuit. Concerning the reverb transformer, I wonder if my meter just happens to ...

Hey Tom, Thanks. I think I probably have a bad reverb transformer. The secondary leads are actually even easier to test because these are wired directly to the reverb tank, so I just disconnected the cable. Indeed, I get a reading up in the 15 -20M region on my DMM which quickly rises until I get in...

Yep, it's PTP, and it is a rat's nest. I did luck out in the fact that it has been recapped with Sprague Atoms. It's not the prettiest job, but they're all in the right spot and look reasonably safe. The amp works really well as it is, just no verb, and it needs a new speaker (I have one on the way)...

Hey guys My first post here. I have some questions about a Gibson Falcon amp that I'm working on fixing up. Anyway, I have a Crest model, and I'm converting it back to a Tweed model as per this forum post: http://letstalkguild.com/phpBB2/viewtopic.php?f=9&t=12859 Here are schematics for both version...