Using a 4046 PLL, which is not very common nowadays, this circuit was found in the October 1994 issue of Electronics Now magazine. The power is provided by the transistor and is small in this case.
This circuit excites incandescent lamps by making them flash alternately. There are 4 outlets and...
This circuit was found in a 1991 publication. The transistor can be a general-purpose type....
This circuit was found in a 90s American documentation. The circuit uses an LED that can be of a...