If you ever wanted to build your own tube amplifier but you were intimidated by working with high voltages, [Marcel]’s low-voltage tube amp design might spark your interest. The design operates ...

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

A Thermocouple is a terrific way to measure temperature. The effects of temperature change on dissimilar metals produces a measurable voltage. But to make that measurement you need an amplifier ...

The world is digital, but sometimes the power of analog is just what is needed. The analog multiplier is a case in point with ...