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.
The output of this circuit can be coupled to a radio control transmitter to perform a...
Although it is a common configuration today, this circuit was taken from an old publication. The...
We found this circuit in Ferranti's 1974 transistor manual. The components are from the period. The...