A mass air flow (MAF) sensor measures the amount of air entering an engine, helping the car’s computer adjust fuel delivery ...

The RC car board has a 128KHz oscillator, and scoping that has shown the issue – it was producing 217KHz for some reason. It turned out that the oscillator’s load resistor was 100 kiloohms ...

I have my very first car in my garage: It’s a 1940 Ford pickup ... and installed a 12-volt coil that needs no ballast ...

Adjusting the fan speed sends a signal through a resistor to the blower motor to either pick up the pace or slow it down. The blower motor resistor adjusts the amount of current going to the ...