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In Reply to: RE: My own answer to MikeCh's question, since this is my post. ;-) posted by JoshT on June 11, 2017 at 20:25:06
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.
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