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Information - Help 
ID = 39617
United States of America (USA)
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 38111A
Similar Tubes
Normally replaceable-slightly different:
Other characteristic (electr. data):
  211 ; 835

Base Jumbo 4-pin bayonet (1918)
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.4 Ampere / Direct

Transmitting triode with a mu of 12.
Low-capacitance version of 211 for Xtal controlled oscillators up to a maximum frequency of 15 MHz.
May be replaced by 211 for non xtal application.
Also WA, ruggedized.

Dimensions (WHD)
incl. pins / tip
x 200 x 65 mm / x 7.87 x 2.56 inch
Information source Tube Lore (I)   
Tube Lore (II)   p. 30 & 182

vt4c_23.png 38111A: Manufacturer's Literature
Emilio Ciardiello

Just Qvigstad


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