High-vacuum electron tube with divergent electron gun aimed at a fluorescent screen partially obscured by a Maltese cross. For demonstrating the linear propagation of electrons in the absence of applied electromagnetic fields by projecting the shadow of a Maltese cross onto the fluorescent screen. Application of a magnetic field using the Helmholtz Coils allows students to study the fundamental science of electron optics, such as beam focusing.
Specifications
• Max. filament voltage: 6.3 V AC
• Max. anode voltage: 5 kV
• vAnode current: approx. 0.1 mA at 4 kV
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