Tube Amps / Music Electronics
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|8/23/2004 11:36 PM|
|BillnShell||Finding source of hum via O-Scope and Sig. Generator|
What would I be looking for as far as a signal pattern on my O-Scope to locate an annoying hum in 2 of my clones? ( I have a digital generator, so I can select sine or square wave at the input )
Both amps stop humming if I pull the driver tube, so I'm guessing the source of noise is there or before.
I know to probe on the AC only side of the coupling caps in each stage, but wonder where else I can test..
|Enzo First, hum is an extraneous signal.... -- 8/24/2004 12:06 AM|