Suggested for use in cars and motorcycles, this circuit was found in a 90s Popular Electronics. The MOSFET can be anyone that supports the current of the lamps. Adaptations can be made to use LEDs.
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...