In Reply to: shared versus separate filament suppies.... posted by Vinnie on January 20, 2007 at 06:05:22:
With the directly heated cathode tubes I would use a separate filament supply for each output tube. I believe that the hum you are getting from one channel is due to the coupling of the two channels. In DHT the cathode/heater is part of the signal circuit.
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Follow Ups
- Re: shared versus separate filament suppies.... - Chris O 06:34:44 01/20/07 (1)
- Re: shared versus separate filament suppies.... - Vinnie 15:23:11 01/20/07 (0)