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.
Found in documentation from the 70s, this circuit uses an operational one from that time. It goes for...
This circuit is based on uncommon operations today but can be adapted to operate with more modern...
These correspond to the short-wave bands from 7 to 14 MHz, occupied by both commercial and radio...