The movement of the LEDs in this circuit mimics the back-and-forth movement of a pendulum, making it suitable for clock projects. The circuit is from a Radio Electronics magazine from May 1978.
This circuit is ideal for recovering vinyl media with a linear response from the RIAA curve of the...
Some delicate sensors such as reed-switches and even sensors made with small metal plates do not...
This circuit was obtained in a manual for radio amateurs from 1975. It is a circuit that allows the...