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6F7M

Information - Help 
ID = 40840
       
Country:
Canada
Brand: Rogers-Majestic, Standard Radio Manufacturing, Rogers Radio Tubes; Toronto
Tube type:  Triode-Pentode   Universal   Controlling (mu) 
Identical to 6F7M
Similar Tubes
Different connections:
  6P7G
Other base:
  6F7 ; 6F7B
First Source (s)
1935 : -- Schematic

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC


Just Qvigstad
rogersdata1~~4.png
6F7M: own collection
Peter den Boer

Usage in Models 12= 1935 ; 15= 1936 ; 5= 1937 ; 2= 1938? ; 1= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):35

Collection of

 
6f7m_rogers.jpg

6F7M
 

Forum contributions about this tube
6F7M
Threads: 1 | Posts: 2
Hits: 2926     Replies: 1
6F7M (6F7M)
Frank Van de Ven
28.Dec.11
  1

 All the Rogers tubes with the "M" suffix, have an Octal shell base, with 8 contact pins and 1 dowel locator pin. The Museum informations states 7 pins. The M series are all Metal Spray Shielded with contact to pin 1, which serves to ground the metal shell.

There is also not a direct substitute for this tube/valve. A 6P7G may be used if the socket is rewired.

Please see this PDF file for M series Rogers tubes. 

http://pacifictv.ca/schematics/rogerstubedata.pdf

 

Regards, 

 

Frank van de Ven

 

 

Emilio Ciardiello
29.Dec.11
  2

Dear Frank,

Many thanks for the information you sent. The tube base type is now changed to octal. If you have even a pinout diagram to load it would be fine.

Emilio

 
6F7M
End of forum contributions about this tube

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