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HF140

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ID = 15882
       
Country:
United States of America (USA)
Brand: Amperex; New York
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to HF140
Similar Tubes
Normally replaceable-slightly different:
  211D ; HF120

Base Jumbo 4-pin bayonet (1918)
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.2 Ampere / Direct / Specified voltage AC/DC
Description

Thoriated-tungsten filament, convection cooled. 75W typical, 100W max plate dissipation; mu 12.5. The production of this tube was discontinued and HF-120 was given as substitute. Dual marking HF-140/211D.

 
Weight 227 g / 8.01 oz
Information source Babani, International Radio Tube Encyclopaedia   P. 204 & 205
- - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49

vt4c_24.png HF140: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
hf140211d_ax_1.png
HF140: Manufacturer's Literature
Emilio Ciardiello

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