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

@bruce19 +1

To OP,  However you determined this phenomenon, will you be able to tell if "the cure" works as advertised?

I would absolutely do the least intrusive remedy. Simply to ease your brain.

A healthy amount of blue tack placed strategically might be your ticket. Let us know

Or if you're all in on this...get a tube of green glue and spread it liberally on the offending board. Beware it will wander.

This poster is not responsible for any misadventures you may have.

Regards,

barts

@pindac is correct, there are any number of companies concerned with this, I presume they did due diligence. My Joule Electra pre did this with signal board containing tube sockets, I could see how this could reduce tube microphonics.

As a debate about whether these vibrations exist at all seems to be brewing, I’ll throw out my solution:  avoid amps with printed circuit boards.

Some of the Best Tube Amp's are Point to Point Soldered, no Circuit Boards and a Schematic that is designed with a Topology for the shortest Signal Path achievable that does not generate noise.

Start adding components to such a Circuit and there is still be the likelihood Microphonics is able to be produced, hence  those in the know and experienced in addressing such matters are quite confident their methods for attaching a part to a chassis, has addressed the issue and is to be a component fitted with an Isolation as part of the mounting.

It is best to take on the idea, it is the Component that has a Microphonic not the Part that enables it to be added to the circuit.       

@jasonbourne71 +100