Experimental tube - Field Emission Microscope
Tube expérimental - Microscope à émission froide
Versuchsröhre - Feldemissions-Mikroskop

This tube was used by Varian as a cathode evaluator for large klystrons in the 1960's.

 

24,5 x 25 cm • 9" 5/8 x 9" 13/16

Westinghouse WL5966 ionization gauge • Jauge à vide à ionisation • Ionisationsvakuummeter

The silvered bulb contains a helicoidal filament.

Tungsten tips • Pointes de tungstène • Wolframspitzen (see LEYBOLD DIDACTIC Field Emission Microscope)

 

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