Triad Variable Tube Power Supply Schematic

[Steven Swift]

A while back there was a thread discussing variable bench supplies for
working with tubes. I found this is a Triad Transformer catalog, TR-52,
from May 1952. Looks like it has what most people wanted. According to
Triad, it will put out 0-300VDC and stay with 1/2% from 0-150ma.

I put a rather large .jpg at:

http://novatech-instr.com/Fun/triad_ps.jpg

The R-26A is 880VCT at 200ma. The bias supply choke is 15H at 20ma.

Have fun.

Steve.
--
Steven D. Swift, , http://www.novatech-instr.com
NOVATECH INSTRUMENTS, INC. P.O. Box 55997
206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA

[AuroraOldRadios]

I have a huge rack mount regulated power supply out in the garage. It
has 2 400vdc outputs, a negative bias output, multiple 6 vac filament
outlets, and 2 amp variac. All in one unit. I was debating whether to
sell it or junkit for the all the transformers. It uses a bunch of
6AQ5s and some solidstate rectifiers. The main power transformer would
would work nicely on a good-sized tube amp.