Tube Amp Archive

Thanks to drz400 and Fischerman. It turned out that both of the main filter caps were open! This design has two 200Uf caps in series for the first stage of filtering (OT primary). I had jumped each one independently to no avail, I jumped them both on a whim...all is right with the world again, go fi...

Guys- I posted this on the main forum, thought I would mention it here too...

https://tubeamparchive.com/viewtopic.php?t=6261

Hi guys- Just put together a Ceriatone Overtone and have an issue, seems to be a little more technical expertise on this board so I thought I would post here as well as the Ceriatone board. With no power tubes inserted my B+ plate supply is 420v or so. In this condition, the preamp circuitry works a...

Hi guys- Just put together a Ceriatone Overtone and have an issue, seems to be a little more technical expertise on this board so I thought I would post here as well as the Ceriatone board. With no power tubes inserted my B+ plate supply is 420v or so. In this condition, the preamp circuitry works a...

Thanks for the helpful response, good info.

I have a Weber kit build (6A20X2) that I just completed. It's a Deluxe Reverb with four 6v6s.
I have noticable hum when the volume control is at zero, it goes away at about 3 and then increases again as the volume is increased.
Anybody experienced anthing similar?
Thanks!
CinStan