short dated tender - bids are invited for pn or zener diode or led characteristics apparatus , verification of kcl and kvl , resistance in series and parallel apparatus , ohms law apparatus without power supply , ohms law apparatus with aluminum panel 2 digital panel meters and power supply , transistor characteristics apparatus , fet characteristics apparatus , half wave full wave and bridge rectifier apparatus , ripple factor apparatus , digital logic trainer , verification of truth table of logic gates using universal gates , flip flops using nand gates and ttl ics , four bit counters synchronous and asynchronous , four bit shift registers , encoder or multiplexer eight to one line , decoder or demultiplexer one to eight line , four bit analog to digital convertor , four bit digital to analog convertor , light intensity or phase control using scr or triac , scr commutation techniques , switching action of a bjt , single phase half wave full wave and fully controlled bridge rectifier or convertor using scrs , three phase half controlled bridge converter with r and rl load , three phase fully controlled bridge converter with r and rl load , single phase cycloconverter , instrumentation trainer using transducers , burdon tube pressure gauge trainer kit , strain gauge trainer kit with cantilever beam , lvdt trainer kit , speed measurement using photo electric and magnetic sensors , temperature sensors kit , measurement of water level using strain gauge , measurement of water level using capacitance transducer , ac servo speed torque characteristic trainer , dc servo motor speed torque characteristics trainer , stepper motor controller trainer , analog lab trainer bread board model , digital lab trainer bread board model , plc trainer , transmission line trainer abcd t and pi parameters ferranti effect load test , idmt over current relay testing kit electromechanical type , buchholz relay testing kit with compressor and oil , over voltage relay testing kit electromechanical type , over current and earth fault relay testing kit three phase static type , over current relay testing kit static type , measurement of power and power factor single phase and three phase , to study a typical bhk house wiring , four to one multiplexer and one to four demultiplexer , vapour compression refrigeration vcr test rig , water cooler setup , air conditioning test rig , domestic refrigerator , window air conditioner , split air conditioner , air cooler evaporative , tube cutter , pipe bender , flaring and swaging tool kit , reamer , brazing torch , manifold gauge set , vacuum pump , refrigerant recovery unit , refrigerant charging cylinder or electronic charging scale , refrigerant leak detector , digital clamp meter , digital thermometer , anemometer , tachometer , insulation material , refrigerants , recovery cylinders , weighing machine , electrical control panel , work benches , safety equipment