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Seems important to me

Posted by DrChaos on June 12, 2017 at 14:07:10:
From a physics point of view, wouldn't straight up electromagnetic electrostriction/forces change the relative mechanical alignments and hence voltages and gains in a vacuum tube on its own?

And add to that acoustic feedback?

If a little reverb is euphonic (and it sure seems like it can be from a little experimentation with foobar 2000 dsp), then I would hardly discount the importance of vibration control.

But it also may not be that the maximum anti-vibration is optimal, it might be better to have proper frequency control and resonance.

BTW, this is why I think tube 'rolling' might make a significant difference, two tubes with similar (low amplitude) electrical responses could have distinct electromechanical behaviors.

The tube holder and pins make a difference.