Description
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 allows for 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
Anode current: approx. 0.1 mA at 4 kV
SP4-1890
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