JIMMIE wrote:
I have an HF amp that uses a single 811A in grounded grid. The power
transformer smoked. The transformer was from an old TV set I think it
was rated at 540VAC on the sec and I ran it into a voltage doubler for
about 1300 VDC . Any info on something I could use as a replacement
would be appreciated.
Jimmie
http://www.antekinc.com/details.php?p=92
I was thinking of using this transformer for the same purpose.
I assume this is the single 811A amplifier in the 1967 ARRL handbook?
If you use this transformer you can put the secondary windings in series
and use a bridge rectifier instead of the voltage doubler. You will get
slightly higher voltage this way (the tube won't mind). I think this
transformer might be able to handle TWO 811A's in parallel if you want
to beef up the amp.