I retired quite some time ago from a career in Radio Tech & Data. In the late 70's I built the Powertran 75W + 75W Linsley Hood amp and drove 2 Bailey TL cabinets. The amp was packed away for the decades and now I'm trying to resuscitate it. Age hasn't been kind to some of the transistors which have been replaced, but I'm now struggling with the power amp boards and achieving the desired AB standing current. The amp goes into oscillation and draws lots of current( if I let it) notwithstanding that before it misbehaves, I can measure about 0.75v as the offset voltage on the output. I wondering if some oldies are still familar with Hood's DC circuitry?
Cheers from the deep south and its Winter.
Cheers from the deep south and its Winter.
