bids are invited for build a voltage divider bias circuit and measure the terminal currents & terminal voltages , characteristics of triac, . , r and rc triggering circuit of scr. , measure the operating frequency of oscillation of the wien-bridge oscillator. , conversion of galvanometer into ammeter and voltmeter , use kelvin’ s double bridge for measurement of low resistance , measure medium resistance using wheatstone bridge or voltmeter ammeter method or ohmmeter , multiplexer and de- multiplexer design using ics (74151/74150) , 7 segment display , decade counter (0-9) using ic 7490 , op amp trainer , interfacing 7 segment display with 8051. interfacing 8-bit dac with 8051. interfacing a dc motor wit , basic digital communication training system , soldering iron , determine the radiation pattern of half wave dipole antenna , various antenna (half wave dipole, yadi uda, parabolic reflector) - antenna training system , ladder logic to test the demorgan’ s theorem , interface a dc motor with an h-bridge module to control its speed and direction , jumfer wire(male and female) , usb cable for audrino , ic 741 , led of different colour , digital wattmeter , discrete component trainer , spectrum analyzer 1.5 ghz , digital multimeter , microwave test bench , lcr meter , lcr meter total quantity : 250