This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a carrier. The used components are not common today.
The New Microchip development board is targeted to designers who work with 16- and 32-bit PICs....
Found a documentation on PCs from 1996, this circuit can be used as a shield. The relay is rated at...
This circuit is from a Japanese magazine of 1973. The circuit is designed to withdraw the power...