This flashing allegory with 555 integrated circuits was found in the Radio Electronics Experimenter magazine from 1989. It is a simple circuit to assemble.
The sensor of this circuit can be any phototransistor and the SCR can be the TIC106. The circuit and...
This circuit consists of a controlled charge to discharge batteries under test. The circuit is...
This amplifier from 100 to 150mW was found in a Japanese documentation from 1967. The circuit uses...