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X42

Information - Help 
ID = 2807
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  HEPTODE   Frequency converter 
Identical to X42

Base British-7-Pin, old (M7A) (Codex=Ne) Top contact with a cap
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.6 Ampere / Indirect / Parallel, (AC/DC)
Literature The Wireless World, London (WW, 79)   
Taschenbuch zum Röhren-Codex 1948/49   
 
165_7.png
X42: Telefunken Werkstattbuch
Wolfgang Bauer

 

Usage in Models 1= 1936 ; 1= 1937? ; 13= 1937 ; 1= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):16

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