I put in new caps. I replaced the 47uF with 500uF and added a 250uF right after the rectifier. What I have is a 4 diode rectifier that had no filter cap, then a 90 ohm resister going to the bias pots. Thats where I increased the capacitance. The ripple went from around 1Vp-p to about 20mV p-p. Still hear noise. Can't hear it when music is playing but I know I will obsess over it.
On the schematic for the 50/50 there are caps (100uF @ 100VDC) going across all 10 ohm resisters for bais adjustments. Should I add? Will it help? The worst thing I could do is chase my tail. I do beleive I'm on the right trail because I put one probe right across the speaker terminals and one on the bais supply. They match perfecly.
On the schematic for the 50/50 there are caps (100uF @ 100VDC) going across all 10 ohm resisters for bais adjustments. Should I add? Will it help? The worst thing I could do is chase my tail. I do beleive I'm on the right trail because I put one probe right across the speaker terminals and one on the bais supply. They match perfecly.