Introduction and working of Digital IC Tester (for CMOS and TTL ICs):
https://www.instructables.com/id/Digital-IC-Tester-for-Industries-and-Engineering-C/

https://in.linkedin.com/in/shubham-kumar-746b84108

ABSTRACT:
IC’s, the main component of each and every electronic circuit can be used for wide variety of purposes and functions. But sometime due to faulty ICs the circuit doesn’t work. Indeed it is lot tedious work to debug the circuit and confirm whether the circuiting is creating problem or the IC itself is dead. So to come up with these sorts of problems IC tester confirms whether the IC under consideration is working properly or not.

WORKING:

The IC to be tested is inserted in the base. There are two modes in which IC tester can be operated

1. Auto mode