Description

The Teltron range of demonstration discharge
tubes has been designed to show the properties
of the free electron.
The D range is the original Teltron range with
connections fixed on the tubes. The S range is
a newer range with connections on the stand
rather than the tubes. Please note the ranges are
not interchangeable.
Highly evacuated electron tube with focusing
electron gun and fluorescent screen inclined
relative to the beam axis so that the path of the
beam can be seen and the effects of electric and
magnetic fields can be studied.
The electron beam can be deflected using two
methods:
Electrically using electric field of the builtin
plate capacitor, or Magnetically using
external Helmholtz Coils S. Also determine the
fundamental electron charge-to- mass ratio (e/m)
and study mean electron velocities using field
cancellation. Instructions included.