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

[Ingo Debus]

Am 04.12.2007 um 23:35 schrieb anthony:

> Anyway, now comes my second idea: I have this big 9-pin (noval?  
> whatever the non-mini 9-pin base is...) damper
> rectifier, a 6DW4B, whose specs seem stout enough (unlike the 3A3  
> that I looked up too). Wouldn't the half-wave
> rectified voltage ultimately be lower than with a solid state bridge?
>

You mean because it's half wave rectified vs full wave? No, the peak  
voltage isn't lower, but there will be more ripple (using the same  
filter cap) so the average voltage can be a bit lower. Actually the  
peak voltage can even be higher because there's only one diode in the  
circuit opposed to the two diodes if a bridge rectifier is used.

Or do you mean because there's a larger voltage drop across a tube  
rectifier than across a silicon diode?

Ingo