This simple digital circuit tester can work with TTL technology when powered by 5 V and with CMOS when powered by voltages from 3 to 15 V. The circuit provides LED indications and uses current ICs.
In the figure we have an oscillator for microcontrollers capable of operating in the frequencies of 10,...
A pulse goes off this horn produces 800 Hz tone when fired. Powered by 5 V the circuit works as a...
This circuit is from a 1966 Motorola Field Effect Transistors Manual. The circuit makes use of...