Wondering if anyone is familiar with this series. I was
testing it out and the bias circuitry is not
functioning. There is shown on the schematic a bias transistor
along with one diode and pot.
There is no bias transistor on the two stages, just looks
like one diode. I intend on adding a diode or two to get it going.

There is a place on the boards for the transistor, but it was never there.

greg