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H11

Information - Help 
ID = 14247
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Triode, vacuum   Universal 
Identical to H11
Similar Tubes
Other characteristic (electr. data):
  L11
First Source (s)
05.Apr.1934 : Wireless World (The), London (WW, 79)

Base SPECIAL TUBEBASE in general
Was used by Radio/TV-reception etc.
Filament Vf 1 Volts / If 0.1 Ampere / Indirect
Description

Miniature tube first made in 34. For use in hearing aids and portable radios.

Va <100. Typically:- Va=45 Ra, 30,000 ohms Gm 0.5mA/V.

 
Dimensions (WHD)
incl. pins / tip
x 33 x 18 mm / x 1.30 x 0.71 inch
Information source The Saga of Marconi Osram Valve   p. 249 & 250, 338
History of the British Radio Valve to 1940   p. 140 & 205
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

h_l11_12.png H11: Fin Stewart
Fin Stewart

 

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