Search found 2 matches

by analogdino
Mon Apr 21, 2014 10:41 pm
Forum: Technical Discussion
Topic: Transformer Current Rating
Replies: 11
Views: 1850

Re: Transformer Current Rating

In class B, yes, they conduct alternately. In class AB the conduction overlaps during each cycle. In class A they both conduct through the whole cycle... and the box gets even hotter!
Cheers,
Roger
by analogdino
Mon Apr 21, 2014 10:26 pm
Forum: Technical Discussion
Topic: diode/tube rectifier in parallel
Replies: 2
Views: 1041

Re: diode/tube rectifier in parallel

The 6CA4 would add about 6 watts to the power transformer load (the 6CA4 heater.) With the Si diodes I would add a 50 ohm WW resistor in the rectifier cathode line before the input capacitor to cut ripple current.
Cheers,
Roger