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6SR7 Info
Country:  United States of America (USA)      Brand:  Common type USA 
  Tube type:  Double Diode-Triode   Audio Frequency 
Tube ID = 2720
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Identical to 6SR7 = 6g1 = VT-233
Similar Tubes 6BF6 (other base)   6SR7GT (other shape (e.g. bulb, size))   6R7 (different connections)   12SR7 (Heater different)   6ST7 (Heater different)   6R7GT (different connections)   6R7G (different connections)  
First Source (s) 01.Apr.1940 : Electron Tube Registration List
Predecessor Tubes 85   6R7   6R7G  
Successor Tubes 6BF6   7E6  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vk)
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel / series AC/DC / If: 0.3 Ampere / Vf 6.3 Volts /
Tube prices 0 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

  6sr7.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
6sr7_1.jpg
M.F.
Manfred Fries

 
334_1.png
Telefunken Werkstattbuch
Wolfgang Bauer

 
6sr7_techdat01.png
SEL Handbuch 1964
Peter Hoddow

Usage in Models   1= 1940 ; 4= 1941? ; 1= 1941 ; 2= 1947?? ; 3= 1947 ; 11= 1948 ; 3= 1949 ; 6= 1950?? ; 3= 1950 ; 2= 1951 ; 5= 1952?? ; 1= 1953? ; 1= 1953 ; 3= 1954?? ; 1= 1955?? ;
Number of Models with this tube   47
No further Information for

6SR7    

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