This is an audio A/B selector with gain control. The project uses op-amps and resistors to smoothly switch between microphone and line inputs.

A boat battery-selector switch is a small but mighty component, allowing boaters control over which battery to use when starting the boat engine and powering accessories. It also lets boaters turn off ...

You may not need the Impact Acoustics 3x5 Component Video Matrix Selector Switch but there are some that do. The real question is, "Does it work?" The answer is a firm yes. When I was told that there ...