This logic tester circuit was published in the November 1980 issue of Radio Electronics magazine. The circuit works with both TTL and CMOS logic and has several selectable functions.
This circuit is from a 90s Popular Electronics. It appears elsewhere on this site. Q1 can be any...
This circuit works as a booster operating with signals from 1 to 30MHz. The gain is between 1 and...
This timer circuit was found in a 1980s American documentation. Transistors and SCR support modern...