Tube Amps / Music Electronics
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|5/28/2000 3:41 PM|
|Bruce||Re: Max Rectifier Capacitance|
I don't understand why you are going through all the trouble of using multiple 5AR4s/5U4s just to use large value filter caps?
That's a huge amount of wasted power through an extra 5v filament tranny....
Just use solid state diodes and the two 110uF filter caps in parallel and be done with it!!!
However, if your design needs that much filtering and you need the voltage drop of the rectifier tubes, then use a different PT or use the solid state rectifier put some high wattage zener diodes in the center tap of the PT to ground to drop a little voltage off the B+ rail.