Home › Forums › Design and Building › 2 Stroke Amplifier Design and Building › But there is no sound, except for a hum … › Re: Re: But there is no sound, except for a hum …

December 29, 2011 at 12:50 am #5548
Robin
Participant

470R to pin 8 of the power tube is fine. The cap from volume pot to tone pot is 500pf. Hard to tell from the photo but I think Beelzebum might be on to something. Check the shielded lead from the center lug of the volume pot going to pin 7 of V1.