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6R7M

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ID = 47972
       
Country:
Canada
Brand: Rogers-Majestic, Standard Radio Manufacturing, Rogers Radio Tubes; Toronto
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 6R7M = 6R7
Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Information source -- Collector info (Sammler)   
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6r7m_so.png 6R7M: arrl Handbook 1972
Anonymous 10 Collector

Just Qvigstad
Usage in Models 6= 1938 ; 6= 1941? ; 1= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13
 
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