Took a bit longer than I thought ...
With the inputs grounded directly on the boards there's no hum on the right
and more hum on the left than with the pot connected.
I'll try separate input ground wiring now.
Btw: With my 250Ohm T90 the amp is dead quiet
With the inputs grounded directly on the boards there's no hum on the right
and more hum on the left than with the pot connected.
I'll try separate input ground wiring now.
Btw: With my 250Ohm T90 the amp is dead quiet