[jubilado]

So....
3300uF cap = 1st test 79.4 volts at zero then as distortion appears jumping at all sorts of values between74 and 76 volts 2nd test 76volts at zero volume and pulsing between 72 and 74 at distortion point.

I replaced 4000uF caps with 4700uF caps and on test at zero volume 39.6 volts and at distortion pulsing between 30 and 35 volts