Thanks Paul. Now the amp has been on for approx 60 mins the bias is pretty much steady at 150mv and the offset is fluctuating around 2mv. This is without the lid on.
The other channel I cocked up on winding the bias higher than I should have( so used to building Nelson Pass amps which are usually set to 0.47V) and R11 smoked and now reads open circuit. That'll teach me not have the instructions in front of me Will I have taken out the mosfets as well do you think? It was on for a few minutes only.
The other channel I cocked up on winding the bias higher than I should have( so used to building Nelson Pass amps which are usually set to 0.47V) and R11 smoked and now reads open circuit. That'll teach me not have the instructions in front of me Will I have taken out the mosfets as well do you think? It was on for a few minutes only.