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V4 Hum Balance
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02-20-2016, 09:10 AM
I'm short on time this weekend but I did the tube swap and no improvement. Then to be sure there isn't anything funny with the "E" supply, I added a filter capacitor at R6 and Gnd. Also no improvement. I'm more convinced it is filament to cathode hum. Next weekend I will sacrifice a board and add a DC rectifier/filter for V1, V2 filaments. The main problem is lack of physical room for a filter cap on the board.
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| Messages In This Thread |
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V4 Hum Balance - by AEB-1 - 02-13-2016, 01:54 PM
RE: V4 Hum Balance - by Hangman - 02-13-2016, 10:28 PM
RE: V4 Hum Balance - by AEB-1 - 02-15-2016, 08:05 AM
RE: V4 Hum Balance - by Hangman - 02-15-2016, 01:17 PM
RE: V4 Hum Balance - by AEB-1 - 02-16-2016, 06:25 AM
RE: V4 Hum Balance - by Liquids - 02-16-2016, 02:31 PM
RE: V4 Hum Balance - by Hangman - 02-17-2016, 06:14 PM
RE: V4 Hum Balance - by AEB-1 - 02-20-2016, 09:10 AM
RE: V4 Hum Balance - by Hangman - 02-21-2016, 11:54 AM
RE: V4 Hum Balance - by AEB-1 - 02-28-2016, 08:53 PM
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