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previous: Rob P Hi all,I own a peav... -- 5/30/2000 12:35 AM View Thread

Re: What to do about my humming amp?

5/31/2000 11:59 AM
Ray Ivers
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Re: What to do about my humming amp?
Rob,  
 
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.  
 
Ray Ivers  
R.A.G.E. Electronics

 
Replies:
Rob P Ray,the opamps are ... -- 6/1/2000 1:10 AM