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DW8

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ID = 3657
       
Country:
France
Brand:
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to DW8 = E455
Similar Tubes
Normally replaceable-slightly different:
  S4150C

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect
Description

This tube is a variable mu type.

 
Text in other languages (may differ)
Information source L'ABCDaire des lampes de TSF des jeunes années   p. 57a
British Radio Valves - The Classic Years: 1926-1946   Supplement' p. 35
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

9_64.png DW8: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1932 ; 4= 1933

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5
 

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