bids are invited for trainer boards or kits for electronics engineering 1 23 amplitude modulation and demodulation , fm modulation and demodulation using pll ic 565 , phase modulation and demodulation with signal generator , preemphasis and deemphasis circuit , frequency division multiplexing and demultiplexing , time division multiplexing and demultiplexing , pulse code modulation and demodulation , noise power spectral density measurement trainer , half wave and full wave rectifier with l c filters , diode clipper and clamper circuit , zener diode as voltage regulator , voltage regulator using lm78xx and lm79xx , transistor input and output characteristics in ce and cb and cc configuration , all types biasing schemes for bjt , single stage transistor amplifier in ce and cb and cc configuration , transistor class a and class b and class ab and class c amplifiers , study of h parameters of ce configuration , jfet and mosfet input and output characteristics in cs and cg and cd configuration , single stage fet and mosfet amplifier in cs and cg and cd configuration , bjt oscillators such as hartley and colpitts and rc phase shift and wein bridge , ttl gates transfer characteristics , 16 is to 1 multiplexer and 1 is to 16 demultiplexer , mod n counter for n equal to 2 to n equal to 9 , universal shift registers , half and full adder subtractor , four bit adder and subtractor using ic 7483 , temperature measurement using rtd and thermister and thermo-couple , measurement of strain using strain gauge , pressure measurement using burdon tube and pressure gauge setup , 8051 microcontroller trainer kit total quantity : 72