In Reply to: I have a question posted by Leo loves music on April 8, 2025 at 12:17:36:
That will make it trickier to have a hum balance setup that is only one control.
I have a PP type 45 power amplifier. I don't use a hum balance, instead I was careful about the filament connection so that the hum waveform cancels in the output section. That required a minor amount of matching but since the mu of the tube is so low that was not difficult.
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Follow Ups
- You should be able to use the same 5V supply. - Ralph 12:21:38 04/08/25 (2)
- If the DC supply is clean there will be no hum. - Tre' 12:28:06 04/09/25 (0)
- thanks you are the man :) nt - Leo loves music 12:27:29 04/08/25 (0)