This circuit can be used with receivers to attenuate signals that may cause interference. The circuit is a 70s documentation for amateurs.
This circuit used in signaling for boats, cars or barriers was found in a 1980s documentation. It still...
This circuit is from a Popular Electronics from 1992. It uses two SCRs and can be triggered by...
Who is the fastest? This circuit with neon lamp is powered directly by the network (there is no...