Re: DC Mains on Pre-War TV's
Circuit diagram of the gram motor AC supply generator in the Ace RG354U.
Two 50CD6G power tetrodes were employed in this application.
To supply a pre-war television set a purely electronic DC to AC mains converter would have been completely out out the question. No doubt such a device could have been made but imagine the huge valves needed to supply for the power demands of a TV receiver?
The answer was an electro-mechanical solution, the rotary converter.
DFWB.
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