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12SF5

Information - Help 
ID = 3925
       
Country:
United States of America (USA)
Brand:
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 12SF5
Similar Tubes
Other shape (e.g. bulb type):
  12SF5GT
Other class quality (otherwise equal):
  CV919

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vl)
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  12sf5.png
  12SF5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
12sf5.jpg
12SF5: H.-G.Sch.
Hans-Georg Schirmer

 
325_1.png
12SF5: Telefunken Werkstattbuch
Wolfgang Bauer

 
12sf5_schaltbild.png
12SF5: GE 12SF5 Description and Rating
Hans-Georg Schirmer


from Just Qvigstad

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

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6


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