This circuit is from a 1967 documentation. It consists of a sensor for memories used at the time. It can be made with modern equivalent transistors. Note the 4 V symmetrical power source.
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...