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7A6

Information - Help 
ID = 2991
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Diode   Detector 
Identical to 7A6
Similar Tubes
Other class quality (otherwise equal):
  CV876
Different connections:
  5679
Other base and other heater:
  6H6GT ; EB34
First Source (s)
10.Jun.1938 : Electron Tube Registration List
Predecessor Tubes 6H6GT  
Successor Tubes 6AL5  

Base Loctal-8, B8G (Sylvania, 1938) (Codex=Wa)
Filament Vf 6.3 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Tube prices 3 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  7a6.png
  7A6: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
 
7a6.jpeg
7A6: Photo of tube from my collection - TS
Tomasz Szczesniak

 
315.png
7A6: Telefunken Werkstattbuch
Wolfgang Bauer

 
7a6_techdat01.png
7A6: Sylvania Technical Manual
Peter Hoddow


Usage in Models 1= 1939? ; 12= 1939 ; 11= 1940 ; 16= 1941 ; 1= 1942?? ; 5= 1942? ; 9= 1942 ; 4= 1946?? ; 8= 1946 ; 1= 1947?? ; 10= 1947? ; 20= 1947 ; 4= 1948?? ; 8= 1948? ; 33= 1948 ; 7= 1949?? ; 4= 1949? ; 5= 1949 ; 10= 1950?? ; 4= 1950? ; 2= 1950 ; 7= 1951?? ; 1= 1951? ; 6= 1952?? ; 5= 1953?? ; 1= 1960?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):195


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