At this point, he decided to make his build useful as a proper guitar amplifier by adding a preamplifier stage replicated from another design that he came across.

Guitar amplifier Build an affordable and good sounding guitar amplifier. Most high-quality guitar amplifiers inevitably work with tubes: Widely praised for the pleasant-sounding distortion and warm ...

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 cir… ...

Benjamin J. Heckendorn returns from a vision quest of Xbox 360 laptop-building and Jasper-hunting to share a new how-to project with Engadget readers. In this episode, he'll describe how to build ...