Antique radios, Old Time Radios

6A7M

ID = 32304

Country:

Canada

Brand:	Rogers-Majestic, Standard Radio Manufacturing, Rogers Radio Tubes; Toronto
Tube type:	Pentagrid-Converter (Heptode) Pentagrid (old) Controlling (mu)

Identical to

6A7M

Similar Tubes

Other shape (e.g. bulb type):

6A8G

First Source (s)

Jun.1936 : Electron Tube Registration List

Base	Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Filament	Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Description	like a 6A8G with metal spray shield
Information source	- - - Taschenbuch zum Röhren-Codex 1948/49 - - - - - -

6A7M: My Collection
Bruce Morgenstern

6A7M: ARRL Handbook 1972
Michael Schlör

6A7M: own collection
Peter den Boer

from Just Qvigstad

Usage in Models

1= 1934 ; 1= 1935? ; 40= 1935 ; 4= 1936? ; 32= 1936 ; 53= 1937 ; 2= 1938? ; 5= 1938 ; 3= 1939? ; 9= 1939

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):150

Collection of Bruce Morgenstern (CDN)

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