Quote:
Originally posted by jshorva65
Regarding the proposed tube complement for a 9kV RF supply, a pre-war tube complement such as 6N7 (or 6SN7), 6L6G, and 8016 (early Industrial precursor of 1B3) could be used. I believe American engineers may have developed RF oscillator supplies pre-war and either developed the flyback method as part of radar development during the war, or learned the technique from others. . .
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Philo Farnsworth developed the flyback HV supply in the early 1930s and was issued a patent for it in 1936.
(Farnsworth patent #2,059,219 "Generation of the High Voltage from the Horizontal Scan Frequency" issued Nov. 3 1936).