lab equipments supply of lab equipments , dac interfacing board for 8051 microcontroller >? one channel dac output, 8 bit input from the controller >? external power supply is to be provided ±12v >? closed wooden / ms cabinet , lcd interfacing board for 8051 microcontroller >? lcd display of 2 lines and 16 >characters / line >? closed wooden cabinet , 8051 microcontroller kit >? processor : 89c51 micro controller, 12mhz clock speed >?program memory ram – 32kb >? data memory ram – 32kb >? program memory eprom – 32kb >? 16 x 2 lcd display >? pc keyboard is provided and also reset and interrupt keys are provided ( rre key ) >? parallel i / o bud expansion >? one no. of 8255 connections are terminated in one 26 pin frc header ( 24 i / o lines ) >? micro controller port lines are terminated with one 40-pin frc header >? digital i / o: on board 8 digit inputs can be given through 8 way dip switch >? on board 8 digit outputs can be visible through smd leds >? serial port: on chip serial port will be terminated in 9 pin d male connector >? built in power supply: input – 230v ac >? output +5v / 3a, + 12v / 0.5ma >? battery backup : 1 no. of 3v lithium battery / 3.6v nicd battery , digital voltmeter >to measure ( 0-30v ) dc supply , op-amp trainer kit >? +5v & 12vdc power supply >? +5v variable power source 2 nos. >? adder, subtractor, inverter, >?non inverter modes of circuits ( ic 741 ) >? patch cards >? wood / ms box ( closed type ) , dc regulated power supply ( 0-30v, 1a ) >? ( 0 - 30v ) , 1asingle output >? input:230v ac ±10% 50 hz >? line regulation : 0.1% for ±10% line variation >? load variation : 0.01% from no load to full load >? voltmeter ( digital ) : 7 segment 3 digit voltmeter >? ammeter ( digital ) : 7 segment 3 digit ammeter >? protection: overload &short circuit >? indicator’s : overload led indicator : overload buzzer indicator >? voltage control :coarse & fine ( voltage setting ) >? current control :coarse ( current setting ) , closed loop speed control of ac motor >? power supply : 0-230v ac >? inbuilt firing circuit >? inbuilt power circuit >? single phase 0.5 hp induction motor , speed control circuit using triac for universal motor >? power supply : 0-110v ac >? firing circuit using ujt >? isolation transformer 230 / 110v >? pulse transformer 1no >? single phase universal motor , common emitter transistor circuit kit for input and output characteristics >? power supply +15v >? amplifier circuit using bc 108 with load >? wood / ms box ( closed type ) >? input : 230v ac , negative resistance characteristics of ujt >? dual regulated power supply ( 0 –18 ) v >? ujt characteristics circuit using 2n2646 >? wood / ms box ( closed type ) >? input : 230v ac , common emitter amplifier circuit and test its frequency response characteristics without current series feedback >? power supply +15v >? amplifier circuit using bc 108 with load >? wood box ( closed type ) >? input : 230v, ac , pneumatic timer ( on-delay ) type >? 440v ac with ( no+nc ) >? timing range ( 0.5 sec to 60 sec ) , pneumatic timer ( off-delay ) type >? 440v ac with ( no+nc ) >? timing range ( 0.5 sec to 60sec ) , push button switches with ( no+nc ) >440v ac, 5amps => limited