Play dough circuits 2: experiment with electricity Last time, we went through the basics of how to make simple electrical circuits with play dough and light-emitting diodes, now it's time to ...

The concept is simple. We'll build some RCA component to HD15 VGA cables for inputs and a HD15 to component cable for the output. We know that the Cybex can switch between VGA video sources. The ...

With this circuit, you can use low-torque, low-revolutions-per-minute stepper motors in systems in which you formerly needed dc gearbox motors. By changing the pushbutton to a dpdt switch, you can ...