This circuit is from a Radio Electronics magazine from July 1979. It uses the well-known IC 7107, a liquid crystal exciter that became popular in circuits of this type at the time.
The MC1455 integrated circuit consists of a version of the 555 made by Motorola. The circuit given...
This circuit, from the ON Semiconductor Thyristor Manual, controls both the speed and direction of...
This circuit allows linear brightness control of an LED from an input voltage. The power supply must...