Early Electronic Television
RCA
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TT-5 (1939) 5 inch. Vision only. Original price $199.50
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TRK-5 (1939) 5 inch. Original price $295
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TRK-9 (1939) and TRK-90 (1940) 9 inch. Original price $450.
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TRK-12 (1939) and TRK-120 (1940) 12 inch. Original price $600.
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1932 Field Test Prototype
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1936 RR-359 Field Test Prototype
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1936
RR-366 Prototype
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1928 Prototype with Vladimir Zworykin, and Laboratory version of the
same prototype. This was unusual it that it used magnetic deflection
for the horizontal sweep, and electrostatic deflection for the
vertical. It is thought that the set operated with only 48 lines, and
20 frames per second. Though we have this set under RCA, it was
actually developed by Zworykin while he was still with Westinghouse.
(Information from an article in the May 1996 issue of Radio Age, the
Newsletter of the Mid-Atlantic Antique Radio Club, by Ludwell Sibley)
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1939 Projection Set
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1943 Ten Inch TT-5 (probably only an artists rendition)
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| This picture was taken at the 1939 World's Fair. The tube was
called a "flask" design. It was a way to get a larger
and flat screen. The picture tube was in the shape of an iconoscope.
I imaging only the one was made. I did see some reference to
the spare tubes on hand for the fair and there was a spare tube at
the time. (Information courtesy of Jeff Lendaro) |
From August, 1939 Radio News
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