Found in a 1980s English magazine, this trigger circuit can have different types of inputs depending on the sensor and type of action on the controlled load.
June 2017 - New high power TVS for high-power retention applications with bi-directional features...
This fast-acting circuit uses any phototransistor as a sensor. The circuit drives a 30 V relay, but...
This transistor can use any general-purpose germanium transistor like CK722 or 2N107. The circuit is...