Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 35250
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 211-Spl = CV2576 = VT-4C
Similar Tubes
Normally replaceable-slightly different:
  211 ; 4C21

Base Jumbo 4-pin bayonet (1918)
Filament Vf 10 Volts / If 3.2 Ampere / Direct

Convection cooled 75 Watt anode dissipation; thoriated-tungsten filament. Mu 12. Uses include AF power amplifiers or modulators, class B RF amplifiers, class C RF amplifiers or oscillators.
Similar to 211 with reduced grid current limits.
Jumbo 4-pin base.

Dimensions (WHD)
incl. pins / tip
x 200 x 58 mm / x 7.87 x 2.28 inch
Information source Tube Lore (I)   
Tube Lore (II)   p. 30
Tube Lore (I)

211spl_so.png 211-Spl: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad

Collection of



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]

Data Compliance More Information