PHILIPS Experimental tube, Avalanche Cold Cathode
Tube expérimental, Cathode froide, diode à avalanche
Versuchsröhre, Avalanche-Diode Kaltkathode
Marquage • Marking • Kennzeichnung : 249-250-2.
Hauteur • Height • Höhe : 148 mm • 5" 7/8
Diamètre • Diameter • Durchmesser : 36 mm • 1" 3/8
US Patent 5444328 Electron Tube Comprising A Semiconductor Cathode.
US Patent 2002/0079823 Electron Tube Comprising A Semiconductor Cathode.
![PHILIPS Experimental tube](xp075a.jpg)
![PHILIPS Experimental tube](xp075b.jpg)
![PHILIPS Experimental tube](xp075c.jpg)
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![Avalanche Cold Cathode for CRTs](ACC.jpg)
Electronics World, March 1999.
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