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879

Information - Help 
ID = 7487
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
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
Filament Vf 2.5 Volts / If 1.75 Ampere / Direct
Description

Used to supply dc voltage too cathode-ray tubes.

 
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   RCA manual TS-2 dated 1935
  g411.png
  879: A.J. Kronienko: Amateur-Fernsehgerät LTK-9 (1951)
Georg Richter
 
20200309_220606.jpg
879: RMG
Robert Gillespie

 
879base.png
879: own collection
Peter den Boer

 
879data1.png
879: own collection
Peter den Boer


Usage in Models 2= 1935 ; 2= 1936 ; 1= 1937 ; 1= 1938 ; 12= 1939 ; 1= 1940 ; 1= 1942? ; 1= 1942 ; 1= 1949 ; 1= 1950 ; 1= 1962??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24


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