The Wheatstone bridge is a ubiquitous circuit configuration that is useful in detecting small changes in resistance.

If you consider a typical stereo amplifier for a moment, you’ll see two amplifiers in one box with a single volume ... but by wiring both pots together as a Wheatstone bridge.

The Wheatstone bridge is a way of measuring resistance with great accuracy and despite having been invented over 150 years ago, it still finds plenty of use today. Even searching for it on ...