Antique radios, Old Time Radios

6a7

Country:	Soviet Union		Brand:	Common production USSR (Soviet Union) tube
			Tube type:	Pentagrid-Converter (Heptode) Pentagrid (new)

Tube ID = 18796

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Identical to	6a7 = 6SA7 = 6a15b
Similar Tubes	Other shape (e.g. bulb type): 6A7P; 6A7_DDR; 6a10s; OSW3104 Normally replaceable-slightly different: 3104_OSW
Predecessor Tubes	6a8

Base	Octal (Int.Octal, IO) K8A, USA 1935
Filament	Vf 6.3 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel / series AC/DC /
Tube prices	0 Tube prices (visible for members only)

6a7: collection JR
Jacob Roschy

6a7: ARRL Handbook 1972
Michael Schlör

Usage in Models	1= 1938? ; 1= 1942 ; 2= 1945 ; 2= 1946? ; 4= 1946 ; 1= 1947? ; 5= 1947 ; 1= 1948?? ; 5= 1948 ; 1= 1949?? ; 3= 1949? ; 7= 1949 ; 2= 1950? ; 8= 1950 ; 1= 1951? ; 3= 1951 ; 2= 1952? ; 11= 1952 ; 11= 1953 ; 15= 1954 ; 3= 1955? ; 8= 1955 ; 3= 1957 ; 1= 1958?? ; 1= 1958 ; 2= 1960 ; 2= 1961
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 106

Forum contributions about this tube
6a7
Threads: 1 | Posts: 1

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6a7 (6a7)

Enrico Bonisolo
23.Apr.09

6a7 (6a7)

This soviet 6A7 is not identical to the standard worldwide known 6A7 (USA) . The usual 6A7 is also a heptode converter elctrically very close to this but very older, bigger (st shaped) AND with a different socket: it is not octal but the older late 20's - early 30's style 7 pin USA socket. This USSR tube seems to be just identical or very close to 6SA7, single ended octal heptode used in 1940.

6a7
End of forum contributions about this tube

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