Narrow beam tube

Function and Applications
In conjunction with the Helmholtz coil pair to specific destination charge e/m of the electron.

Equipment and Technical Data
Glass sphere with two glass tubes covered with plastic caps for fixing in Helmholtz-coils
Gas filled neon
Fluorescent distance markers for parallax-free determination of the diameter of the narrow beam
Plastic end caps for mounting and 4 mm connection sockets with wiring diagram
Heater 6.3V/0.5A
Anode/cathode voltage. 150 V / -50 V
Piston diameter 170 mm
Overall length 470mm
Pressure 0,004 mbar
Total length 47 cm.

Necessary accessories:
Helmholtz coils (06900-00)
Power supply, 0...600 VDC (13672-93)
Power supply, universal (13500-93)