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1C7G

Information - Help 
ID = 3938
       
Country:
United States of America (USA)
Brand:
Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old)   Controlling (mu) 
Identical to 1C7G = 1C7M
First Source (s)
04.May.1936 : Electron Tube Registration List
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ut)
Filament Vf 2 Volts / If 0.12 Ampere / Direct / Battery =
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
1c7g_scha.png
1C7G: Tube and Transistor Handbooh by De Muiderkring
Fabio Masetti     More ...
1c7gbasediagram.png 1C7G: 1C7G RCA Data Sheet 1947
Vitor Oliveira
More ...
Just Qvigstad 		1c7g_techdat01.png
1C7G: Sylvania Technical Manual
Peter Hoddow
More ...
Usage in Models 62= 1936 ; 5= 1937?? ; 4= 1937? ; 126= 1937 ; 7= 1938?? ; 10= 1938? ; 188= 1938 ; 3= 1939?? ; 12= 1939? ; 156= 1939 ; 1= 1940?? ; 5= 1940? ; 71= 1940 ; 2= 1941?? ; 2= 1941? ; 69= 1941 ; 6= 1942? ; 2= 1942 ; 1= 1943?? ; 3= 1943 ; 1= 1944? ; 1= 1944 ; 2= 1945?? ; 7= 1945 ; 4= 1946?? ; 66= 1946 ; 1= 1947?? ; 21= 1947 ; 18= 1948 ; 7= 1949 ; 1= 1950? ; 8= 1950 ; 3= 1951 ; 5= 1952 ; 2= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):882

Collection of

Cristian Wolkenstein (RA)
Vitor Oliveira (P)
Marcelino Iniesta Fernandez (E)
Bruce Morgenstern (CDN)
David Erali (USA)
George Papaiz (CDN)
Uwe Rössler (D)
Fabio Masetti (I)
Tor Steinnes (N)
Tomasz Szczesniak (PL)
 
1_c7_g.jpg

1C7G
 
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