Part evacuated electron tube, filled with neon at low pressure, with tangential and axial electron gun. For determining specific charge e/m from the diameter of the filament beam in the case of tangential bombardment and a perpendicularly aligned magnetic field, and observing spiral paths of electrons in the case of axial bombardment and a co-axial magnetic field.
The electron paths are rendered visible in the form of fine luminescent beams through impact excitation of the neon atoms.
Max. filament voltage: 7,5 V AC/DC
Anode voltage: approx. 150 V DC
Max. anode current: < 30 mA
Max. deflection voltage: 50 V DC
Glass bulb: approx. 130 mm diam.
Total length: approx. 260 mm
Dimensions 35.1 x 28.2 x 22.1 cm
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