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50R4

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ID = 19947
       
Country:
Italy
Brand: Magnadyne Radio; Torino
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 50R4
Similar Tubes
Other shape (e.g. bulb type):
  50S4

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 50 Volts / If 0.15 Ampere / Indirect / Specified current AC/DC ~ = (Series working)

50r4.gif 50R4
Giuseppe Feniello


Just Qvigstad
50r4_data.png
50R4: Magnadyne tube manual
Giuseppe Feniello

Usage in Models 1= 1953?? ; 2= 1954?? ; 9= 1955?? ; 10= 1955 ; 1= 1956?? ; 1= 1956? ; 8= 1956 ; 1= 1957?? ; 1= 1957? ; 8= 1957 ; 3= 1958?? ; 3= 1958? ; 3= 1958 ; 2= 1959?? ; 1= 1964??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):54

Collection of

 
50r4.jpg

50R4
 

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