I notice that most people using tube dampers do so on the small input and driver tubes of their amps, but tend not to do so with the thier output tubes -- why would that be?
The small tubes are a) more microphonic and b) usually used for signal splitting and amplification. The goal is to add a minimum of noise before the power tube/output stage.
Perhaps because power tubes tend not to suffer from microphonic's. At least I've never heard one that did and I've never noticed a difference when I tried any tube ventilation/dampening devices of any type on power tubes. Pearls look cool though.
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