Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 28843
United States of America (USA)
Brand: General Electric for Brand RCA-Radiotron; Bridgeport CT, Syracuse NY
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Power/Output 
  <1925 very rare. ***
Identical to UV210 = 210_UV-Triode = C310
Similar Tubes
Normally replaceable-slightly different:
  CG-2666 ; SE-2666
Other base:
  CX310 ; UX210
First year 1924 Saga of the Vacuum Tube, Tyne page 316, 317, 326
Predecessor Tubes 202  
Successor Tubes UX210  

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 1.25 Ampere / Direct / Specified voltage AC/DC

Initially being developed (start May 1922) The type number was assigned to it also in 1922.and it was employed as an output stage tube for loudspeaker operation(1924/25), it was also used in transmitting service by the Navy (1924 beginning), because of its long life of about 15,000 hours.
Power output 1.5 Watts.

Dimensions (WHD)
incl. pins / tip
x 137 x 54 mm / x 5.39 x 2.13 inch
Weight 59 g / 2.08 oz
Information source Saga of the Vacuum Tube, Tyne   p. 316, 317 & 326
Tube Lore (II)   p. 25

uv_triode_tube~~82.png UV210: Fin Stewart
Fin Stewart

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