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ID = 5268
Tube type:  Triode, vacuum   Power-supply 
Identical to 12A4
First Source (s)
28.Jul.1950 : Electron Tube Registration List

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 12.6 Volts / If 0.3 Ampere / Indirect

Medium-mu miniature power triode; often used as series regulator in power supply circuits. 250V and 30mA max ratings; 6.5W max plate dissipation.

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Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
- - Manufacturers Literature   

12A4: Personal file
Antonio Rabitti

12a4_so.png 12A4: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad
12A4: Manual de Válvulas Edições Monitor 1966
Antonio Rabitti

Collection of



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