High-vacuum electron tube with divergent electron gun and three, colored fluorescent strips.
Demonstrate stimulated light emission during and after electron bombardment of a phosphorus anode. The anode also fluoresces when illuminated with a focused ultraviolet light source. Specifications Max. filament voltage: 6.3 V AC Max. anode voltage: 5 kV Anode current: approx. 0.1 mA at 4 kV (anode)