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210DDT

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ID = 13508
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Cossor, A.C.; London 
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 210DDT = VR44 = HD24 = CV1044

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fp) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Information source Babani, International Radio Tube Encyclopaedia   p. 28 & 29
History of the British Radio Valve to 1940   p.167
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

vr44_1.png 210DDT: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
Usage in Models 1= 1936 ; 1= 1937? ; 2= 1937 ; 1= 1938 ; 3= 1939 ; 2= 1940 ; 2= 1947 ; 1= 1948??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13

Collection of

 
cossor_210ddt.jpg

 

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