Quote:
Originally Posted by Steve McVoy
Eric, are you sure these sets were designed for DC? I can't imagine how they would work, since the B+ would only be 120v.
|
Steve, yes.
Take a look at Sams 75-1
http://www.earlytelevision.org/image...43-Sams-75.pdf
It has the option for DC power with a "Polarizing Relay" (vibrator?) the diagram is on page two.
You're right about the B+ I don't see anything higher than 127 volts listed in the voltage chart.
It has no Flyback using an RF type supply so maybe that's why. I'm guessing they managed to duck most or all of RCA's Patents with that chassis!