Re: rocktron gainiac problem

Posted by pilo on Wed, 03/20/02 - 16:18:45.

: My gainiac sounds quite nice but after it warms up, the volume tapers off to a very weak signal. I replaced the 12ax7 and the problem remains. Changing power supply also did not help. Does anyone have a scematic or know about this problem in tube preamps?

I think it's a problem of the power voltage.
If you have a voltmeter, plug it on the tube power, and see if when the sound go down the volatge go down. If it's that, It may come in the power supply. Do you change it? or juste try? And what did you test? it may be a capacitor problem.

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