We found this circuit in the February 1983 issue of Radio Electronics magazine. The 4-digit circuit is based on dedicated integrated circuits of the time. The power supply is not shown.
T We found this circuit in the 1960 Mullard transistor application manual. The circuit can be...
We found this circuit in a 1998 documentation. It tests common household appliances to see if they...
This configuration found in other companies' manuals is from Motorola's 1993 Linear Interface ICs....