Antique radios, Old Time Radios

12BA7


			Tube type:	Pentagrid-Converter (Heptode) Pentagrid (new) Controlling (mu)

Tube ID = 5304


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Identical to	12BA7
Similar Tubes	Heater different: 6BA7
First Source (s)	09.Jun.1948 : Electron Tube Registration List
Predecessor Tubes	12BE6 12SA7

Base	Noval, B9A
Was used by	Radio/TV-reception etc.
Filament	Vf 12.6 Volts / If: 0.15 Ampere / -: Indirect / -: Parallel / series AC/DC /
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973


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

RTT 1974 (Franzis) 13. Auflage
Martin Renz

Usage in Models (calculation each 25th of the month)	1= 1946 ; 2= 1948 ; 1= 1949?? ; 9= 1949 ; 3= 1950? ; 3= 1950 ; 2= 1951? ; 1= 1952? ; 3= 1952 ; 8= 1953?? ; 2= 1955?? ; 1= 1955? ; 1= 1961 ; 1= 1962?? ; 1= 1963 ; 1= 1964 ; 1= 1966? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 41

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12BA7

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