This TTL counter was found in the March 1991 issue of Radio Electronics magazine. The circuit is part of a larger project and must be powered by a 5V voltage.
With several integrated circuit options, this amplifier can provide different powers depending on the...
In the figure we have the configuration of series regulator protector suggested by Motorola in 1968...
Found in American documentation from the 1980s, this circuit uses an ADC from that time, which is...