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

JH. jhaible at debitel.net
Wed Dec 5 09:57:40 CET 2007


>>I was wondering about other effects besides sag....
>
>Weight, heat, and power consumption, for sure! Perhaps some DC
>offset? More line noise?
>
>Sag is the only audible effect that I know of; it's one of those side
>effects that sometimes desirable but sometimes not.

Anode voltage will slowly build up as the rectifier tube is heating up - 
will prevent cathode stripping of the amplifier tubes while they are still 
cold. Or so I've been told - I have no experience with this.
Also, tube rectifiers are said to create less HF radiation than the current 
spikes from silicon diodes' reverse recovery effect.
Again, I have no experience here, but it sounds reasonable to me.

JH. 




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