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9D2

Information - Help 
ID = 9551
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 9D2 = ARP3
Similar Tubes
Normally replaceable-slightly different:
  CV1321 ; CV1598
Successor Tubes CV1106   VR106   VR106A  

Base British-7-Pin, old (M7A) (Codex=Nf) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description

Variable mu tube

 
Information source History of the British Radio Valve to 1940   p. 144 % 195
Wireless World (The), London (WW, 79)   Data Nov 1936
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

159_3.png 9D2: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 6= 1934 ; 1= 1935?? ; 1= 1935? ; 7= 1935 ; 9= 1936? ; 6= 1936 ; 10= 1937 ; 5= 1938 ; 1= 1939? ; 7= 1939 ; 5= 1940 ; 1= 1946

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):59

Collection of

 
gb_brimar_9d2.jpg

9D2
 

Forum contributions about this tube
9D2
Threads: 1 | Posts: 2
Hits: 2094     Replies: 1
9D2 (9D2)
Olivier Palix
18.Feb.09
  1

9D2=ARP3

Jacob Roschy
19.Feb.09
  2

introduced,

merci,

J. R.

 
9D2
End of forum contributions about this tube

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