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HR12

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ID = 30228
       
Country:
Great Britain (UK)
Brand: Ferranti, GB
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to HR12

Base UX-Base (4 Pins (2 thick, USA 1924, UX) Top contact with a cap.
Filament Vf 2.5 Volts / If 5 Ampere / Direct / Specified voltage AC/DC
Description Va<15kV rms; 20mA av. 
Text in other languages (may differ)
Information source - - Manufacturers Literature   
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Just Qvigstad
hr12.png
HR12: eigenes Dokument
Roland Böhme

 

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