Found in a 1968 Electronics World, this circuit uses components from the era. In this circuit, a small incandescent lamp is activated when it gets dark.
In the figure we have the way to use a 555 with hysteresis. The circuit is from old documentation and the...
Direct current motors from 5 to 12 volts and currents up to 2A can be controlled with this...
This circuit uses a NAND port to convert rectangular signals from 50 kHz to 1 MHz into triangular...