This circuit is from an old American documentation and its use in motorcycles with 12 V is suggested to power 6V radios. The transistor can be the BD136 and BC548.
Found in an American brochure from the 90s, this circuit shows how we can implement a 4-input AND...
The integrated circuits in this application are not very common today. One consists of an A / D...
September 2016 - It can be obtained from Mouser Electronics the FAN602 integrated circuit...