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H_DeForest

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ID = 28582
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Developer: DeForest-Tubes 
Tube type:  Transmitting Triode, air cooled   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to H_DeForest
Similar Tubes
Multiple differences or of other kind:
  deForest_Senderöhre
First year 1926 Saga of the Vacuumtube, Tyne page 301, 303, 304, 329

Base Wires Wires only
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 2.35 Ampere / Direct / Parallel, (AC/DC)
Description

150 Watts input. Va = 3ooo Volts. Ia = 50 mA. Unbased, with widely separated leads. For use up to 300 MHz !

 
Tube prices 1 Tube prices (visible for members only)
Literature Saga of the Vacuumtube, Tyne   Pages 301, 303, 304 & 329
 
usa_deforest_h.jpg
H_DeForest: QST Sept.1926, p.79
Otto Frosinn

 
usa_deforest_h_tech.dat.png
H_DeForest: QST 9/1926, p. 45
Otto Frosinn


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