Found in an American 1980s documentation, this circuit compares signals from two TTL sources, providing an output that depends on the frequency difference. The circuit can be used as a shield.
This simple low power stage with output transformer was found in an American documentation. The transistor...
July 13, 2015 - Mouser Electronics, Inc. today announced that it has signed a global distribution...
This touch switch appears elsewhere on this site from various documentation. This is from an 80's...