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BW1304

Information - Help 
ID = 13848
       
Country:
France
Brand: Common type France tube/semicond.
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to BW1304

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Description Babani gives the heater current as 0.1A not 0.2 (Röhren-Codex) 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   
 

from Just Qvigstad

Forum contributions about this tube
BW1304
Threads: 2 | Posts: 2
Hits: 1628     Replies: 0
BW1304 (BW1304)
Peter den Boer
05.Apr.11
  1

The brand is changed into Common production France because this tube is sold under the Mazda, Metal, Cyrnos and Eta brand.

 
Hits: 1579     Replies: 0
BW1304 (BW1304)
Peter den Boer
04.Mar.11
  1

The ETA brand, from 1931 on.
The Electrical Trading Association Ltd
Aldwych House, Aldwych,
London WC2
This company imported Mètal/Mazda (French) tubes but used there own ETA brand, but the type numbering is from Mètal/Mazda. The UNIS FRANCE logo on tubes and boxes proves that they are really made in France.
 

Datasheet atteched.

 

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BW1304
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