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284A

Information - Help 
ID = 25407
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Developer: Western Electric Company Inc.; New York (NY) 
Tube type:  Transmitting Triode, air cooled   Audio Frequency 
Identical to 284A
Similar Tubes
Normally replaceable-slightly different:
  284D
Different connections:
  284B

Base Jumbo 4-pin bayonet (1918)
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.25 Ampere / Direct
Description

Max.power 85 Watts. Base: W.E.112A bayonet.
Variant of 242A intended for audio power amplifiers; two tubes gave 50W output power.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 184 x 72 mm / x 7.24 x 2.83 inch
Information source -- Collector info (Sammler)   
Tube Lore (I)
Tube Lore (II)

284as.gif 284A: KoBi
Konrad Birkner † 12.08.2014

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Just Qvigstad
284ad.png
284A: KoBi
Konrad Birkner † 12.08.2014

More ...
 
284ab.gif

 

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