This circuit was found in the February 1983 issue of Radio Electronics magazine. It is a 4-digit circuit with dedicated integrated circuits, with no power supply indicated.
This circuit was obtained in a 90s American documentation. The integrated circuit used is uncommon...
This circuit was obtained in a 1980 English magazine, but it can be easily assembled today, since...
This configuration is used to display the characteristic curve of a diode in the virtual...