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12SF7GT

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ID = 20431
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Tung-Sol Electric Inc.; Newark (NJ) 
Tube type:  Diode-Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 12SF7GT
Similar Tubes
Other shape (e.g. bulb type):
  12SF7
Normally replaceable-slightly different:
  CV170
Heater different:
  6SF7GT
First Source (s)
01.Feb.1946 : Electron Tube Registration List
Predecessor Tubes 12C8GT  
Successor Tubes 12CR6  

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Tube prices 1 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
 
12sf7gt_sockel.png
12SF7GT: Essential characteristics
Peter Hoddow

 

Usage in Models 2= 1947

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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