Rivera Pubster Schematic ?

[ggjgjhkihkjhiuyiy8788]

Hi there,

Does anyone have a schem for a Pubster 25 110 or even a Clubster? I'm not getting any signal into the reverb tank, although the tank itself and return line are working fine. Also, it seems like the treble and bass controls are not working at all, although the mid is fine. The 12ax7s test fine and swapping them (just to be sure) did not solve the problems. Seems to be lacking in headroom as well, although the 6V6's are biased fairly cold (<60%).

Any help would be appreciated!

Thanks,
Jaret

[ggjgjhkihkjhiuyiy8788]

Never mind- solved it! It was the reverb tank after all (output coil is open circuit). Funnily enough, the tank had been connected backwards, so the *input* end would pass a signal back to the return on the amp. When I first checked the tank, it was measuring the correct DC resistance on the input side and I didn't check the output because I thought it was connected properly, since tapping the tank made noise through the amp. Doh!

Live and learn, I guess! At least I don't have to pull the PCB on this one...

As for the tone controls, they actually do seem do work, just very subtly.

-J