Ionization potential of Mercury App. has been designed to plot the Ionization Potential of Mercury using Thyratron valve. The instrument comprises of following built-in parts: Ÿ One DC Regulated Power supply of 0-15Volts DC with connections brought out at 4mm. sockets. connections brought out at 4mm. sockets. the front panel. brought out at 4mm sockets. with well printed circuits and symbols. Supplied with patch cords & instruction manual.