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1M5G

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ID = 39664
       
Country:
Australia
Brand:
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 1M5G
Similar Tubes
Other base:
  1C4
Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.12 Ampere / Direct / Specified voltage AND current AC/DC
Description Possible replacements are: 1D5G, 1D5GP, 1D5GT, 1E5G, 1E5GP, 1E5GT (all with parallel filament circuits) and 1K5G. Information from Stuart Irwin, Australia: The 1M5G and the 1L5G are two of a series of ruggedised valves produced by AWV for Australian conditions. The US and European battery valves then available often did not survive transport over the very bad country roads of the time. They also had good performance and longer life that the others but needed a higher filament current. 
1m5g_pin_connections.png 1M5G: SI
Stuart Irwin

Just Qvigstad 		1m5gdata.png
1M5G: AWV Radiotron Valve Data Book
Stuart Irwin
Usage in Models 5= 1937 ; 48= 1938 ; 62= 1939 ; 2= 1940? ; 42= 1940 ; 2= 1941? ; 48= 1941 ; 2= 1942 ; 1= 1943?? ; 1= 1944 ; 6= 1945 ; 1= 1946? ; 65= 1946 ; 1= 1947? ; 22= 1947 ; 2= 1948? ; 21= 1948 ; 8= 1949 ; 1= 1950? ; 12= 1950 ; 1= 1951? ; 2= 1951 ; 6= 1952 ; 1= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):362

Collection of

Robert Gillespie (USA)
Jay Kinnard (USA)
Stuart Irwin (AUS)
 
1m5g.jpg

1M5G
 
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