Best way to dampen a micro-vibrating Printed Circuit Board inside an amp? Thanks!

@mylogic - +1 for your powers of recall/association. Now you mention it, yes - I do indeed remember that discussion.

Let's see if we find out this time.

I note that it has a PCB, so all the point to point wired tube amp owners can rest easy in their beds.

Tubes can have microphonics, and they are easily measured and heard. Soli state, not so much. P-P wiring does away with PCBs, but the wires can ring - audibly and measurably in a P-P wired tube amp also. So at what frequencies did the micro-resonances occur? You can change the frequencies by mass loading the PCB or you can absorb them by mounting the PCB on Sorbothane.

@panzrwagn “what frequencies did the micro-resonances occur?”

Don’t hold your breath or bank on an answer