[Milsurplus] Stablizing a BC-221 that has an RA-133 installed

[Marty Reynolds]

> The post-war RA-133 (and PP-79/UR in BC-221-B and -Q) is an AC operated
> rectifier supply built to replace the dry batteries in the BC-221.  B+ is
> regulated
> by an 0D3 (VR-150).  The +150 is dropped to the +135 volts that the BC-221
> was designed to operate from with a 2500 ohm 1 watt resistor...

long delayed echo

Wonder why so much fuss over running B+ 11% higher than triplicate
of 45V batteries as designed.  IE 150V right off VR150.

Seems like a tempest in a teapot

   Marty