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6SF7

Country:  United States of America (USA)      Brand:  Common type USA 
  Tube type:  Diode-Pentode   RF/IF-Stage 
Tube ID = 2849
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Identical to 6SF7
Similar Tubes Other shape (e.g. bulb type):
 6SF7GT
Heater different:
 12SF7
First Source (s) 03.Mar.1941 : Electron Tube Registration List
Successor Tubes 6CR6  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vk)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel / series AC/DC /
Description Also used as resistance-coupled af amplifier. 
Tube prices 1 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

  6sf7.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
6sf7_a.jpg
scc
Christian Schaufelberger

 
386.png
Telefunken Werkstattbuch
Wolfgang Bauer

 
6sf7_techdat01.png
Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)   2= 1940 ; 7= 1941? ; 6= 1942 ; 2= 1945? ; 2= 1945 ; 1= 1946?? ; 9= 1946? ; 38= 1946 ; 12= 1947?? ; 3= 1947? ; 34= 1947 ; 1= 1948?? ; 38= 1948 ; 4= 1949?? ; 3= 1949? ; 8= 1949 ; 12= 1950?? ; 8= 1951?? ; 1= 1951? ; 6= 1952?? ; 1= 1952? ; 1= 1953?? ; 2= 1954?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   201
No further Information for

6SF7    

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