[sdiy] sort of OT: The virtues of solid state bridge rectification vs. tube half-wave rectification

[John Mahoney]

Tube rectifiers will exhibit "sag" when there's a big current draw. 
In a guitar amp, hitting a chord hard (with the amp's volume up) will 
create a big need for current, briefly pushing the rectifier into a 
sagging condition and thus causing more distortion in the amp. In 
extreme cases it's like the amp's response is spongy because the 
impact is gone.
--
john


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