Quote:
Originally Posted by Pio1980
I think I recall this set being desirable for the ability to change the scanning rates without affecting EHT crt voltage. Only one of two postwar magnetic deflection sets I recall that did not use flyback EHT, the other had a prewar brute force AC transformer source and one of the first post-war US production sets, don't recall make model.
Germany had at least one flyback EHT set ca 1939, the E-1 as a "peoples" television receiver.
https://www.earlytelevision.org/Etzold/e1-e.html |
Philco’s 48-700, had a brute force supply. DuMont had a set that was magnetically deflected and had brute force supply, too. I think they had a retrofit kit for it that they sent out to owners.
I think a few Sylvanias had RF power supplies for the HV, and also, DuMont, being DuMont, had a set that derived the HV from an RF style supply that synchronized to the horizontal…