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ID = 25471
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
  Late but very rare. ***
Identical to 1637 = EL32 = VT52 = CV1052 = VT180_GPO
First Source (s)
1941 : Tube Lore (I)
Production stop 1945

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Parallel / series AC/DC

RCA production of British types, furnished to British government via U.S. Signal Corps.
Cylindrical body equivalent to G/GT.

Information source Babani, International Radio Tube Encyclopaedia   Pages 38-39
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Page 423
1637: Private collection
Emilio Ciardiello

1637: RTT 1974 (Franzis) 13. Auflage
Martin Renz


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