radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

BW1304

Information - Help 
ID = 13848
       
Country:
Great Britain (UK)
Brand:
Developer: Métal; France (tubes) 
Tube type:  Triode, vacuum   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to BW1304
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Description

Babani gives the heater current as 0.1A not 0.2 (Röhren-Codex). Tube used as class A amplifier

 
Information source L'ABCDaire des lampes de TSF des jeunes années   p. 77
Babani, International Radio Tube Encyclopaedia   p. 54 & 55
Taschenbuch zum Röhren-Codex 1948/49
British Radio Valves - The Classic Years: 1926-1946
b4_base_pins~~560.png BW1304: Fin Stewart
Fin Stewart

Just Qvigstad
 
eta_bw1304_tube_pdb.jpg

 
Forum contributions about this tube
BW1304
Threads: 2 | Posts: 2
Hits: 2291     Replies: 0
BW1304 (BW1304)
Peter den Boer † 2025
05.Apr.11 		  1
BW1304 (BW1304) 

The brand is changed into Common production France because this tube is sold under the Mazda, Metal, Cyrnos and Eta brand.
 
Hits: 2420     Replies: 0
BW1304 (BW1304)
Peter den Boer † 2025
04.Mar.11 		  1
BW1304 (BW1304) 

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.

 

Attachments

 
BW1304
End of forum contributions about this tube
You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
Data Compliance More Information