Antique radios, Old Time Radios

7Y4

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Full-Wave Vacuum Rectifier

Tube ID = 3263


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Identical to	7Y4 = CV901
Similar Tubes	Other base: 6Z4; 6Z4/84; 84; 84/6Z4 Other base and data slightly different: 1274
First Source (s)	09.Dec.1938 : Electron Tube Registration List
Predecessor Tubes	84/6Z4 6ZY5G 6Z4/84 6Z4 84
Successor Tubes	6X4

Base	Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Was used by	Radio/TV-reception etc.
Filament	Vf 6.3 Volts / If: 0.5 Ampere / -: Indirect / -: Parallel, (AC/DC) /
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 Michael Schlör

Patrice ZEISSLOFF
Patrice Zeissloff

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)

1= 1938 ; 1= 1939? ; 18= 1939 ; 24= 1940 ; 32= 1941 ; 6= 1942 ; 2= 1945? ; 1= 1945 ; 3= 1946? ; 4= 1946 ; 4= 1947? ; 2= 1947 ; 4= 1948?? ; 4= 1948? ; 20= 1948 ; 2= 1949?? ; 9= 1949? ; 7= 1949 ; 3= 1950?? ; 6= 1950? ; 17= 1950 ; 3= 1951?? ; 4= 1951? ; 2= 1951 ; 5= 1952? ; 3= 1952 ; 1= 1953?? ; 2= 1953? ; 4= 1953 ; 1= 1954?? ; 3= 1955?? ; 1= 1955? ; 2= 1959? ; 1= 1959 ;

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 202

No further Information for

7Y4

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