This flashing allegory with 555 integrated circuits was found in the Radio Electronics Experimenter magazine from 1989. It is a simple circuit to assemble.
This circuit was found in the ON Semiconductor thyristor manual of the 1980s. As the drive is done by...
This simple preamplifier was published in Radio Electronics magazine in February 1958. The battery...
This circuit can use 20 to 100 mA relays with a general-purpose transistor such as the BC538. The...