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Mark D. Zacharias
 
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Default Hum on Optimus STA-20


"Sam Goldwasser" wrote in message
...
"Michael Ware" writes:

If you are talking about a Realistic STA-20, I might be able to hook you
up
with a service manual.


I assume it's Radio Shack/Realistic.

Thanks.

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Have you 'scoped the output of any voltage regulators?

Mark Z.