Nobelium preamp/DI

[Schisme]

@vigilante398 I have an actual issue now. When it is powered on and nothing is plugged into the input, there is a high pitch noise I can adjust the frequency of with the treble and bass knobs. Then when I plug in and play, the noise goes away, but the low notes distort/ fart . I checked the voltage at R9 and it was 248V. What could be causing this noise?

I have got kinda the same problem. Waiting for some guidance.

 

[Feral Feline]

I have got kinda the same problem. Waiting for some guidance.

Maybe like or comment on the OP's build first.

Same answer/guidance as post #20:
Start your own trouble-shooting thread,
or post questions in the main Nobelium thread.

 

[vigilante398]

Maybe like or comment on the OP's build first.

Same answer/guidance as post #20:
Start your own trouble-shooting thread,
or post questions in the main Nobelium thread.

He did that yesterday, we're working on it already.