Diode Cold Cathode Multipactor tubes....unique in that it has no filament.

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Title Diode Cold Cathode Multipactor tubes....unique in that it has no filament.
Photo Number P0437n1_08_05
Description Photo reads: "Diode Cold Cathode Multipactor tubes....unique in that it has no filament." Taken in the 1920s or 1930s.
Date 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939
Textual Date Circa 1920s, 1930s
Keywords Televisions; Inventors; Equipment; Diodes
Subject Television--History--Photographs
Additional Information See MS 1252
Collection Number and Name P0437 Philo T. Farnsworth Photograph Collection
Collection Name Philo T. Farnsworth
Original Source N/A
Donated By/Purchased From Donated by Mrs. P.T. Farnsworth
Rights
ARK ark:/87278/s6dz0vp6
Setname uum_map
ID 948450
Reference URL https://collections.lib.utah.edu/ark:/87278/s6dz0vp6
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