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879

Information - Help 
ID = 7487
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to 879 = 2X2
Similar Tubes
Normally replaceable-slightly different:
  В-879
Other class quality (otherwise equal):
  CV597
Other base and data slightly different:
  2Ц2С
Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bm) Top contact with a cap.
Was used by Military and/or Government
Filament Vf 2.5 Volts / If 1.75 Ampere / Direct
Description

Used to supply dc voltage to cathode-ray tubes.

 
Dimensions (WHD)
incl. pins / tip		 x 114 x 42 mm / x 4.49 x 1.65 inch
Tube prices 1 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 80
- - Manufacturers Literature   RCA manual TS-2 dated 1935
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
g411.png
879: A.J. Kronienko: Amateur-Fernsehgerät LTK-9 (1951)
Georg Richter
879base.png 879: own collection
Peter den Boer

Just Qvigstad 		879data1.png
879: own collection
Peter den Boer
More ...
Usage in Models 2= 1935 ; 2= 1936 ; 1= 1937 ; 1= 1938 ; 12= 1939 ; 1= 1940 ; 1= 1942? ; 1= 1942 ; 1= 1946? ; 1= 1947?? ; 1= 1949 ; 1= 1950 ; 1= 1962??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):26

Collection of

Robert Gillespie (USA)
Bruce Morgenstern (CDN)
Paul Cornelissen (NL)
Jean-Jacques Pontigny (F)
Patrice Zeissloff (F)
Karl - Heinz Bossan (D)
 
20200309_220606.jpg

879
 
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