We found this circuit in an American publication from 1977. The circuit drives two LEDs according to the control of the inputs. The technology is TTL requiring 5 V to power supply.
This circuit was found in an American 80s circuit manual. The components used are unusual. The...
The circuit was originally designed to operate with MSX microcomputers in 1988 but can be used to...
This TTL decoder circuit for PC ports was found in a document from 1992. The power supply can be...