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6SF7

Information - Help 
ID = 2849
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Diode-Pentode   RF/IF-Stage   Controlling (mu) 
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
Predecessor Tubes 6B8  
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 3 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  6sf7.png
  6SF7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
 
6sf7_westinghouse.jpg
6SF7: O.R.
Ottmar Rollmann

 
386.png
6SF7: Telefunken Werkstattbuch
Wolfgang Bauer

 
6sf7_techdat01.png
6SF7: Sylvania Technical Manual
Peter Hoddow


Usage in Models 2= 1940 ; 7= 1941? ; 11= 1941 ; 1= 1942?? ; 5= 1942 ; 1= 1945?? ; 1= 1945? ; 1= 1945 ; 1= 1946?? ; 10= 1946? ; 54= 1946 ; 8= 1947?? ; 3= 1947? ; 35= 1947 ; 1= 1948?? ; 4= 1948? ; 33= 1948 ; 5= 1949?? ; 4= 1949? ; 9= 1949 ; 12= 1950?? ; 12= 1950? ; 7= 1951?? ; 1= 1951? ; 6= 1952?? ; 2= 1952? ; 1= 1953?? ; 5= 1954?? ; 1= 1954?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):243


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