HI rob60b
Thanks for the reply,but i will be getting those resistors replaced. I've been told that whats happening to them is an indication of too much heat.I agree to a point that if it aint broke don't fix it.But in this case not fixing it might make this amplifier very broke. And it deserves a better fate than that,its truly a remarkable little amplifier that i intend to keep as long as i can. It's 30 years old already and hope to get a lot more years out of it.
Thanks