Hello all,
Just completed a rev C board. When I fired it up, the amp was unstable. Voltage and bias was fluctuating quite a bit once warmed up. I disconnected the feedback and the amp is stable and I am able to get the bias adjusted. I am using the 8 ohm tap, and adjusted to 20.3k. Also using Edcor iron. Anyone have a clue what I did wrong?
Thanks,
Al