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12GB3

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ID = 22327
       
Country:
Japan
Brand:
Tube type:  Vacuum Pentode   Power/Output 
Identical to 12GB3

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.6 Ampere / Indirect / Specified voltage AC/DC
Description

Japanese tube, designation not known in the US.

 
Dimensions (WHD)
incl. pins / tip
x 110 x 25 mm / x 4.33 x 0.98 inch
Weight 37 g / 1.31 oz
Information source -- Collector info (Sammler)   

12g_b3_national_tube_book_1962_p1_pin.png 12GB3: National Tube Book 1962
Adrian Riesen

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Just Qvigstad
12g_b3_national_tube_book_1962_p1_data_pin.png
12GB3: National Tube Book 1962
Adrian Riesen

More ...
Usage in Models 1= 1955?? ; 2= 1957?

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

Collection of

 
sharp_12g_b3_japan.jpg

 

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