Picture Tubes
Pre-1945 Picture Tubes
*Indicates the tube is on display at the museum
American CRTs
Western Electric 224-B* (1927). Used in many early TV experiments |
Experimental 5 inch CRT* (ca 1930) Used in early TV tests |
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RCA experimental CRT* (L-1313, C-739). Used in 1933 field trial sets. Uses electrostatic deflection for horizontal and magnetic deflection for vertical (donated by Chuck Azzalina)
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Experimental late 30s CRT (donated by Chuck Azzalina)
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RCA Developmental CRT (L-2299, C-745D)* for RR-366 prototype set (1936) (donated by Chuck Azzalina)
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3AP4* (906-P4) (3 inch) sold by RCA for home experimenters (1937) |
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Shortwave & Television, May 1938
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Shortwave & Television, May 1938 |
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Another RCA CRT
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1939 projection CRT using multiple rings to improve focus Courtesy of Chuck Azzalina
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RCA 1800* 9". Sold for use in home made sets (1939) (donated by Chuck Azzalina)
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DuMont 9 inch (1939) |
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144-9/T/14AP4* used in early DuMont 14 inch sets (1938)
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DuMont 20AP4 20AP4 (1940) |
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12AP4* (12 inch) used in U.S. mirror in lid sets (1939) |
Philco ion trap CRT (1939)
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Rectangular, flat faced CRT used in 1941 CBS color experiments
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1930/31 Ardenne CRT, used in Flying Spot Scanner On loan from Bob Dobush
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Compagnie des Compteurs 3"* (1936)
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Cossor 3272* (13.5 inch) used in Cossor 137T (1936)
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Baird 15MW3 Cathovisor* (15 inch) used in Baird T-5 and T-23 (1936) Advertisement Courtesy of Dave Abramson
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Emiscope 6/6* (12 inch) used in early HMV and Marconi mirror in lid sets (1937)
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Emiscope 3/3 (9 inch) (1937) |
Emiscope 3/1* (5 inch), used in early HMV and Marconi sets (1937) |
Safar VS 4/35 (1938) |
Cossor 3244 (5 inch) used in Cossor 54 (1938)
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Mazda CRM-71 (7 inch). Used in Ekco TA-201 and TS-201 (1938) |
Mazda CRM-121* (12 inch) first made in 1938, but used in British sets until the early 50s. |
1938 German CRT* used in the Fernseh A. G. FE-VI |
EMI R5161 (1938) Used in Marconi 708 (1938) |
Telefunken RFB/T2. 19.5 x 22.5 cm. First rectangular CRT (1939)
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HMV 1800 tube (12 inch). Notice the unusual neck.(1939) |
Lorenz 50 cm diam. CRT (1939)
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Lorenz projection CRTs (1939) |
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French 1939 projections tubes, for 20 and 40 kv |
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