Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 2807
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 / Specified voltage AC/DC
Information source Wireless World (The), London (WW, 79)   
Taschenbuch zum Röhren-Codex 1948/49   
X42: Telefunken Werkstattbuch
Wolfgang Bauer


from Just Qvigstad

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

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

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]