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838

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ID = 17022
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 838 = RK58 = UE938
Similar Tubes
Normally replaceable-slightly different:
  38138 ; 938
Other class quality (otherwise equal):
  CV638

Base Jumbo 4-pin bayonet (1918)
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.3 Ampere / Direct
Description

Jumbo 4-pin base. 100W plate dissipation. Usable as RF amplifier or oscillator up to 30MHz full ratings and up to 120MHz at reduced input.

 
Dimensions (WHD)
incl. pins / tip
x 196 x 60 mm / x 7.72 x 2.36 inch
Tube prices 1 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 76
- - Manufacturers Literature   RCA TT-5
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

838_use1.png
838: ARRL The Radio Amateur's Handbook 1936
Götz Linss † 27.06.21

838_so.png 838: ARRL Handbook 1972
Anonymous 10 Collector


Just Qvigstad
838.png
838: RCA Technical Manual TT3
Miguel Angel Trujillo-Rodriguez

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Collection of

 
838.jpg

838
 

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