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ID = 17015
United States of America (USA)
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 809 = DR-809
Similar Tubes
Other characteristic (electr. data):
Multiple differences or of other kind:

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Br) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 6.3 Volts / If 2.5 Ampere / Direct / Specified voltage AC/DC

Introduced in QST magazine December 1937. This tube originally had a ceramic base and was made by several US manufacturers.

Dimensions (WHD)
incl. pins / tip
x 161 x 62 mm / x 6.34 x 2.44 inch
Tube prices 2 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 76
Babani, International Radio Tube Encyclopaedia   p. 180 & 181
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
  809: The Radio Handbook 1940
Götz Linss † 27.06.21
809: J.A:
John Albion

More ...
809: ARRL Handbook 1972
Anonymous 10 Collector

809: RCA Technical Manual TT3
Miguel Angel Trujillo-Rodriguez

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from Just Qvigstad

Usage in Models 1= 1938 ; 1= 1939? ; 1= 1956

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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