Solid State Guitar Amp Forum | DIY Guitar Amplifiers
Solid State Amplifiers => Amplifier Discussion => Topic started by: phelar on January 18, 2015, 06:23:53 AM
Hi!
I´ve got a Sessionette 75 MKII 2x10.
The amp is unstable the first 2-5 min of running. It goes up and down in volume(with a short jack cable in the fxloop). It does the same thing everytime i haven´t played it for like 24h.
Any clue of the problem?
Thanks!
They have 2 versions on the schematic page: http://www.award-session.com/award-session_manuals.html
If it is the '81-88 version, the headphone or ext. spkr jacks could cause that kind of problem if dirty/oxidized.
If yours has those jacks, try to work some cleaner into them, or even just give them some exercise by plugging in and out of them (with power off) several times.