Antique radios, Old Time Radios

12SH7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Vacuum Pentode RF/IF-Stage

Tube ID = 5441


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Identical to	12SH7 = VT-288
Similar Tubes	Heater different: 6SH7
First Source (s)	15.Aug.1941 : Electron Tube Registration List
Successor Tubes	12AU6

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uko)
Was used by	Radio/TV-reception etc.
Filament	Vf 12 Volts / If: 0.15 Ampere / -: Indirect /
Tube prices	0 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

scc
Christian Schaufelberger

Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund

SEL Handbuch 1964
Peter Hoddow

Usage in Models (calculation each 25th of the month)	1= 1944? ; 3= 1945 ; 1= 1946? ; 3= 1946 ; 1= 1947? ; 2= 1947 ; 2= 1949 ; 2= 1950? ; 2= 1952?? ; 1= 1953?? ; 1= 1953? ; 1= 1958? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 20

No further Information for

12SH7

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