[HBR] power transformer source

[N2EY at aol.com]

In a message dated 11/2/04 6:55:39 PM Eastern Standard Time, 
jm_lekostaj at attglobal.net writes:


> They're 115V input, 200-0-200V @ 
> 240 mA and 6.3V @ 6 amps.
> 

let's see...

with silicon full-wave-centertap rectifier and a capacitor input filter, we 
can expect about 280 volts B+ at input to filter. (1.4 x 200) Allowing some 
drop in the chokes, a B+ of about 250 volts shouldn't be too hard to get.

with silicon "economy" supply (full wave bridge and center rectifier), 
capacitor only-filter on the high tap and capacitor input filter on the low, we can 
expect about 560 volts B+ on the high tap and about 260 on the low after the 
filter. Good for a MOPA up to almost 100 W.

73 de Jim, N2EY