Maltese Cross Tube S

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.

• Max. filament voltage: 6.3 V AC
• Max. anode voltage: 5 kV
• Anode current: approx. 0.1 mA at 4 kV
• Glass bulb: approx. 130 mm dia.
• Luminescent screen: approx. 85 mm dia.
• Total length: approx. 250 mm

Additionally required:

• 5401.U185001 Tube Holder S
• 5401.U138021 Set of 15 Safety Experiment Leads, 75 cm
• 5401.U33010230 High Voltage Power Supply, 5 kV (230 V, 50 / 60 Hz)

Additionally recommended:

• 5401.U185051 Helmholtz Pair of Coils S