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TH21C

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ID = 8682
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode-Heptode   Frequency converter 
Identical to TH21C

Base British-7-Pin, old (M7A) (Codex=Nao)
Was used by Radio/TV-reception etc.
Filament Vf 21 Volts / If 0.2 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
mullard_th21c.jpg
TH21C: Collection of Mark Burgess
Mark Burgess

 
s_401_g_1.gif
TH21C: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

 
th21c_techdat01.png
TH21C: Mullard Valves 1936
Peter Hoddow


from Just Qvigstad

Usage in Models 1= 1935?? ; 1= 1936?? ; 5= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7


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