12SK7, Tube 12SK7; Röhre 12SK7 (12SK7)

Antique radios, Old Time Radios

12SK7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	PENTODE RF/IF-Stage Controlling (mu)

Tube ID = 2637


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Identical to	12SK7 = VT-131
Similar Tubes	12SK7GT (other shape (e.g. bulb, size)) 6SK7 (Heater different) 5661 (other class quality (otherw. equal))
First Series	1939 -- Collector info (Sammler)
First Source (s)	02.Feb.1939 : Electron Tube Registration List
Successor Tubes	12BA6

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


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

collection JR
Jacob Roschy

Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund

SEL Handbuch 1964
Peter Hoddow

Usage in Models

1= 1933 ; 1= 1934?? ; 1= 1934 ; 4= 1938? ; 2= 1938 ; 9= 1939?? ; 13= 1939? ; 94= 1939 ; 34= 1940?? ; 21= 1940? ; 124= 1940 ; 53= 1941?? ; 19= 1941? ; 146= 1941 ; 47= 1942?? ; 5= 1942? ; 68= 1942 ; 1= 1943?? ; 5= 1943? ; 1= 1943 ; 4= 1944 ; 8= 1945?? ; 11= 1945? ; 28= 1945 ; 35= 1946?? ; 69= 1946? ; 296= 1946 ; 62= 1947?? ; 16= 1947? ; 187= 1947 ; 45= 1948?? ; 15= 1948? ; 195= 1948 ; 70= 1949?? ; 37= 1949? ; 80= 1949 ;

Number of Models with this tube 2129

No further Information for

12SK7

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