Heathkit audio generator producing bad signal or clipping, where to start?

[SoaDMTGguy]

Oh, I love you!! Why on earth would that take out useful labels in a later version?! This is much more useful. Thank you!!

 

[Alain Dupont]

Hi SoaDMTGguy,

I did cercle around the items you are searching for.

1) The Dual capacitor C6 A/B is plugged on each side of the choke, its 2 capacitors in one aluminium cylinder, simple to replace with 2 * 40uF 450Volts

2) The C8 is a single capacitor between 2 resistors 47 Ω and 5KΩ and the lamp
to replace with a 20uF 350Volts

3) R20 is a pot fixed on the chassis...

Take a look at the pictures ...

 

[SoaDMTGguy]

Ahh thank you! That is very helpful!