Double Beam Tube Gas-Filled

Description

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: 130 mm diam. SP4-1888