Complete kit (Digital) in all respects with the following built in components. · Built in two IC regulated power supplies 0-15V & 25 V (@100mA) · Three digital meters 20V, 200V & 20mA with their independent sockets are mounted on front panel. · UJT 2646/ equivalent with their independent sockets is mounted on front panel. · Voltage controlled through two different Potentiometers. · Fuse for short circuit protection. Supplied with required quantity of 4mm banana plug leads & instruction manual.