We found this circuit in an Australian documentation from 1991. The circuit is suitable for SMD mounting thus making it very small. The circuit was sold in a kit at the time.
This single-channel remote control transmitter operating in the FM range uses common components and...
This circuit was obtained in a 70s American documentation. The integrated circuits of the time are...
This voltage sensor limits the discharge of a Nicad battery. We found it in an American...