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OM10

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ID = 8844
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Triode-Hexode   Frequency converter   Controlling (mu) 
Identical to OM10 = ECH33
Similar Tubes
Other base and data slightly different:
  ECH3
First Source (s)
1940 : History of the British Radio Valve to 1940 p. 199
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ua) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   p. 124 & 125
404_4.png OM10: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
Usage in Models 1= 1943? ; 1= 1945 ; 1= 1946?? ; 5= 1946 ; 3= 1947?? ; 4= 1947? ; 3= 1947 ; 1= 1948? ; 5= 1948 ; 1= 1949 ; 3= 1950 ; 1= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):29

Collection of

John Koster (NL)
Joan Martinez (E)
Pedro Prieto-Castro (E)
Justo Puertas-Paule (E)
Collection of a member from FIN
 
om10_crossor.jpg

OM10
 
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