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UV210

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ID = 28843
       
Country:
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
Similar Tubes
Other base:
  CX310 ; UX210
First year 1924 Saga of the Vacuumtube, Tyne page 316, 317, 326
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 / Parallel, (AC/DC)
Description 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 67 g / 2.36 oz
 

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