In Reply to: Noise is back... posted by Ivan303 on June 9, 2021 at 13:09:25:
Put your PC FFT on the output of the driver stage, check the distortion and spectrum data.
Swap tubes and see if something changes.
Are the driver stage heaters set on a DC bias?
A "rushing" sound might be a bad tube or even a resistor.
DT667
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- RE: Noise is back... - deathtube 667 06/10/2104:31:43 06/10/21 (0)