This is one of the many 555 based car alarm circuits that we have on our website. We found it in a 90’s American documentation. The circuit has double timing.
This power supply circuit for high power audio amplifiers was found in Radio Electronics from the...
The circuit shown was found in an American documentation from 1964. The circuit uses transistors of...
Found in the 1991 Electronics Experimenter Handbook, this circuit detects voltage variations in...