bids are invited for half wave, full wave and bridge rectifier , diode as clipper and clamper trainer , zener diode voltage regulator. , transistor characteristics trainer , characteristics of mosfet, fet and ujt , characteristics of diac, triac and scr , fet amplifier trainer board , training platform to study logic gates and verification of nand and nor gates as universal gates , training platform to study flipflops , shiftregisters , op amp applications trainer board , power amplifier class a, class b and ab push pull amplifier, class c tuned amplifier and differential amplifier , smps trainer board , weins oscillator and freq. measurement by wein bridge , rc phase shift oscillator , 555 timer as a square wave generator , digital electronics development platform kits. , training platform to study logic gates and verification of nand and nor gates as universal gates kits. , digital ic trainer kits. , training platform to study mux. and demux. and adder and subtractor circuits kits. , training platform to study flip flops , shift registers kits. , counters trainer kits. , trainer system to study alu circuit and sop and pos form total quantity : 110