Spectrometer Light Source, Sodium, NEW MODEL for use with either the IEC Flame Spectrometer or for general optical work.  Includes spectral lamp power supply and sodium lamp.

Can also be used with Mercury, Neon or Helium spectral lamps.

The tubular shaped lamp is mounted inside a cylindrical pillar on the top surface of the power supply and a selection of apertures is provided.

A black, ventilated, cylindrical shield with several slits and apertures suitable for viewing the light source fits over the pillar and this shield can be rotated to select the desired aperture.