Found in American documentation from the 90s, this circuit uses TTL technology and is therefore compatible with microcontroller drives. The circuit must be powered by a 5V power source.
This circuit, from the 1990 Motorola Dataar Databook, can use any LM139 series comparator. The circuit...
We find this circuit in a 1980s documentation for amateur radio. The circuit shows how to switch...
With this circuit found in a 1965 Electronic Design, it is possible to read a peak voltage of up to...