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77M

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ID = 54381
       
Country:
Canada
Brand: Rogers-Majestic, Standard Radio Manufacturing, Rogers Radio Tubes; Toronto
Tube type:  Vacuum Pentode   Universal 
Identical to 77M
Similar Tubes
Other shape (e.g. bulb type):
  6J7G
Other base:
  77

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
 
77m_rogers_ebay_1_s.jpg
77M: Ebay
Patrice Zeissloff

 
rogersdata1~~10.png
77M: own collection
Peter den Boer


Usage in Models 2= 1936? ; 1= 1937?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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