Quote:
Originally Posted by jeyurkon
Are there many vintage sets that used triode CRTs such as the 10MP4 or 12VP4 still around? Have they all been converted to used tetrode CRTs? John
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The late 1940s projection sets such as the Emerson, Airline, Scott and Norelco
used the 3NP4 CRT which is a triode. I guess with 25,000 volts on the ultor it
didn't need the extra accelleration from a second grid...