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DW9

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ID = 3659
       
Country:
France
Brand:
Tube type:  Vacuum Pentode   Power/Output 
Identical to DW9 = RTP4 = E443H

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fdo) Sidecontact.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Direct / Specified voltage AC/DC
Description

Frankreich

 
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 207, p. 407
British Radio Valves - The Classic Years: 1926-1946   Supplement p. 35
Taschenbuch zum Röhren-Codex 1948/49

4_58.png DW9: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 2= 1933

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
 

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