Found in a Radio Electronics store from the 90s, this circuit acts on the alternator. The circuit uses a 2N3055 that must be equipped with a good heat sink.
This circuit can also be used as a shield if the excitation is made with 5 V and the output stage...
This type of sensor was used in sensitive infrared systems from the 1960s. This circuit was found...
We find this circuit in a documentation for engineers from 1971. The circuit generates rectangular and...