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 S (SE1000611) allows for students to study the fundamental science of electron optics, such as beam focusing.
- Max. filament voltage: 6.3V AC
- Max. anode voltage: 5kV
- Anode current: approx. 0.1mA at 4kV
- Dimensions: 351 x 282 x 221mm
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