For quick and safe setting up of spectral tubes. The spectral tube is mounted from the front in the insulated holders with electrodes, where the lower holder is spring loaded parallel to the tube axis. The holder is provided with a power supply that can deliver 6 kV DC at max. 2 mA to the electrodes built into the base of the insulated holder.  Can be used with spectral tubes listed below and with many other types of spectral tubes.
Dimensions: 78 x 78 x 290mm. For 220V AC.