This crowbar circuit for alternating current causes a quick fuse to blow when the load current exceeds a certain value. The circuit is from an American 80's documentation.
This circuit was found in an old publication about transistor. The original trasistors are...
This circuit keeps a flashing LED when a balcony lamp, for example, is turned off. As a result,...
This circuit is from an English magazine from 1976. By replacing the transistor for a BC548, the...