“OPAMPS and 555 timers are one of the widely used electronic ICs that we use regularly, So we need to make sure that whether ICs are working correctly or is faulty. Thus we need to make a tester that will help us to test whether those ICs are working properly. If tester does not give desired output, then the IC can be faulty and needs to be replaced. Therefore a tester should be made and must be handy and portable.
Here we considered only the 741 OPAMP IC types and equivalent. And the standard 555 timer IC. Both should be in DIP(Dual Inline Package) package as the tester is made for DIP packages only. So let us proceed.”