bids are invited for electrical and electronics engineering lab equipments to study and demonstration of voltage ampere characteristics , to study and demonstration offiring circuit of scr r, r-c , ujt firing circuit , to demonstrate different type of commutation methods for scr , single and three phase semi converter , single phase and three phase inverter , single phase cycloconverter , buck converter , boost converter , buck boost converter , digital to analog converter , analog to digital converter , study of various type of flip flop with power supply , study of various decoder with power supply , mux and demux trainer kit , universal breadboard trainer kit , 4-bit binary adder and substractor trainer kit with 5v supply , 50mhz digital frequency counter type , band gap of a semiconductor material using diode , plank constant apparatus using photoelectric effect total quantity : 31