trinityamps.com

I just picked up a Trinity Tweed ( not a kit ) with power scaling. The bright channel is working good, but when I plug in the normal channel I get a farting/spitting sound on attack ( and some dropout or cutoffs ). I tried replacing tubes without any change. I quickly looked for a loose wire or component on that input but couldn't find anything. Could this be related to the power scaling module ?

Any ideas/suggestions will be highly appreciated.

P.S. I have been incapable to reach Trinity for several weeks. Does anyone know somthing ? Still in biseness ???

Claude

I think this problem lies in the power expansion module part. Please check the module and try again
doodle baseball

Ensure that all infinite craft unblocked connections to the power scaling module are secure and that there are no visible signs of damage or malfunction.

Wondering if there was a solution found here? I recently completed a 5E3 I bought as a kit from Trinity several years ago, including a VRM module. Initially, after power up testing, everything worked perfectly, and I've been playing it for several weeks with the VRM set very low. Last night, I suddenly had almost no sound, and needed to turn the VRM up past 50% to get anything. Response is slow when turning up the VRM, and results in sudden loud volume. At lower settings, I have a very quiet, spitty guitar sound coming through before it cuts out. I've gone through my chassis checking grounds and connections, and everything seems solid. Grounds all show solid connection via a multimeter. The MOSFET does run really hot, although I would expect that at very low output settings? Any other suggestions? I would not expect a tube to fail so quickly, but I suppose its possible.