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Original Message
RE: SET Headphone amp
Posted by OldNuke on August 14, 2016 at 23:22:20:
A little bit closer to being done.
Cured the buzz by using a .47uf ceramic cap to ground on the filament ground of the input tube.
Added BCP-15+ for plate chokes, at this point I'm at 6mV and 7.2mV hum. Took the padding off the volume pot and put 33 ohms on the input of the TRS jack (all I had in the garage). Still have a little hum in the quiet passages and when input is paused. Ordering more resistors to find the right listening level.