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HP82143A Repair - Buzzing While Powered On
07-11-2021, 06:55 PM
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teenix Offline
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RE: HP82143A Repair - Buzzing While Powered On
Hard to say, but maybe the power supply sees a heavier load than normal by some fault which in turn is causing the oscillator to work harder and be audible.

Is any part of the circuit getting warm to the touch?

cheers

Tony
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RE: HP82143A Repair - Buzzing While Powered On - teenix - 07-11-2021 06:55 PM



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