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ID = 25237
United States of America (USA)
Developer: Taylor Tubes Inc.; Chicago (IL) 
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 6C21 = CV855
Similar Tubes
Normally replaceable-slightly different:
  1000T ; ГМИ-30

Base Jumbo 4-pin bayonet (1918) Sidecontact and top contact.
Was used by Radar
Filament Vf 8.2 Volts / If 17 Ampere / Direct

Special version of 1000T transmitting triode, intended as high-voltage radar pulse modulator. Capable of handling pulses of 15A at 30 kV, with grid driven from -1000 V at cutoff to 1500 saturation
Can be used at 7.5V filament supply to replace 1000T.
Eimac, GE and Machlett known manufacturers

Dimensions (WHD)
incl. pins / tip
x 311 x 130 mm / x 12.24 x 5.12 inch
Tube prices 1 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 88
Tube Lore (I)   
- - Manufacturers Literature

6c21_1.png 6C21: Manufacturer's Literature
Emilio Ciardiello

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