Antique radios, Old Time Radios

12Q7

Country:	United States of America (USA)		Brand:	Common type USA

Tube ID = 2949


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Identical to	12Q7

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vk)
Was used by	Radio/TV-reception etc.
Filament
Description	There is no metal tube 12Q7, see under 12Q7GT Text in other languages (may differ)
Literature	Taschenbuch zum Röhren-Codex 1948/49


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

Telefunken Werkstattbuch
Wolfgang Bauer

Usage in Models (calculation each 25th of the month)	6= 1939?? ; 3= 1939? ; 9= 1939 ; 1= 1940 ; 2= 1941? ; 1= 1941 ; 1= 1943?? ; 1= 1945? ; 2= 1946?? ; 2= 1946? ; 4= 1946 ; 1= 1947?? ; 1= 1947? ; 2= 1947 ; 1= 1948?? ; 3= 1948? ; 2= 1948 ; 2= 1949?? ; 1= 1949? ; 5= 1949 ; 1= 1950? ; 1= 1952 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 52

No further Information for

12Q7

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