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ID = 3901
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Hytron; Salem (MA) 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 6SF5GT = CV1973 = 6SF5GT/G
Similar Tubes
Other shape (e.g. bulb type):
Different connections:
First Source (s)
01.May.1939 : Electron Tube Registration List
Predecessor Tubes 6F5GT  
Successor Tubes 6SF5GT/G  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vl)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC

High-mu triode.

Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
6SF5GT: 1939
Tor Steinnes

6SF5GT: RTT Schwandt
Günther Stabe † 19.8.20

6SF5GT: Sylvania Technical Manual
Peter Hoddow

from Just Qvigstad

Usage in Models 2= 1939? ; 3= 1939 ; 4= 1940 ; 4= 1941?? ; 1= 1941? ; 1= 1941 ; 2= 1942

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):17

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