Found in English documentation from the 1990s, this circuit can employ equivalent components. The capacitor must be low leak type. The circuit can operate as a shield.
This circuit was found in a Hands-On Elctronics from 1987. The field effect transistor admits...
This VCO with the CMS 4046 was found in the August 1994 Electronics Now magazine. The frequency is...
This SCR circuit was found in an American 1980s documentation. The circuit is still current,...