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284D

Information - Help 
ID = 15342
       
Country:
United States of America (USA)
Brand:
Developer: Western Electric Company Inc.; New York (NY) 
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 284D
Similar Tubes
Normally replaceable-slightly different:
  284A

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

Low mu (4.8), low interelectrode capacitance version of 284A. 4-pin jumbo base.

 
Dimensions (WHD)
incl. pins / tip
x 184 x 72 mm / x 7.24 x 2.83 inch
Tube prices 1 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 238
Tube Lore (I)   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

284d_so.png 284D: ARRL Handbook 1972
Anonymous 10 Collector


Just Qvigstad
Usage in Models 1= 1937?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 
_57_1.jpg

284D
 

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