Tube Amps / Music Electronics
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|previous: Rob P Hi all,||View Thread|
|5/31/2000 11:59 AM|
|Ray Ivers||Re: What to do about my humming amp?|
I'm not sure what op-amps are in use, but you might try checking from pins 4 and 8 to ground, if they are 8-pin DIP op-amps. Use the DC and AC settings of your meter, and see what comes up - you would want to see + and - 12 to 16 volts at these pins, along with an extremely low AC reading. At least you can eliminate the op-amp power supply as a problem this way.
|Rob P Ray,|