SOHA-flavored power supply...I'm happy to say, no
"magic smoke" on the first test :
Rectifiers/doubler on the right, B+ in back, +/- low-voltage supply
(it's actually trim-able up to +/-15V) in the middle, and -12.6v heater
supply on the left. With a 30VCT transformer B+ is around 74V unloaded.
The components are oversized enough I could throw in a bit higher voltage
transformer if I wanted a bit more B+.
As you can see, I couldn't get away...