Found in the May 1988 issue of Radio Electronics magazine, this circuit is sensitive to small variations in input voltage. The power supply must be symmetrical.
This circuit generates low-frequency sinusoidal signals. The variable capacitor is dual and the...
This circuit was found in a 1980s documentation. It triggers a relay when liquid from a reservoir...
This circuit was found in the January 1995 Electronics Now magazine. Its configuration is valid for...