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W443

Information - Help 
ID = 11829
       
Country:
Netherlands
Brand: Longlife, the Hague
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to W443 = B443
Similar Tubes
Other base:
  B443_4pin ; RES174d ; W443_4pin
Production stop Feb.1938

Base Europe 5-Pin (O5A, B5) (Codex=Foo)
Filament Vf 4 Volts / If 0.15 Ampere /
Description The "Röhren-codex" lists this tube as a Thermion tube, but the brand is Longlife. 
Dimensions (WHD)
incl. pins / tip
50 x 98 x 35 mm / 1.97 x 3.86 x 1.38 inch
Weight 50 g / 1.76 oz
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1-2-1935
 
w443.jpg
W443
Peter den Boer

 
w443_so.png
W443: rtt
Michael Schlör

 


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