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XXL

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ID = 3744
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Triode, vacuum   Universal 
Identical to XXL
Similar Tubes
Other class quality (otherwise equal):
  7A4

Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

s_275_g_1.gif XXL: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

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Just Qvigstad
xxl_data.png
XXL: Raytheon Manual
Heinz Höger

Usage in Models 1= 1939 ; 30= 1940 ; 1= 1941? ; 25= 1941

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):57

Collection of

 
philco_xxl_top.jpg

XXL
 

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