An analog VU (volume unit) meter is a splendid moving-coil measuring instrument. It is a passive electromechanical device displaying a representation of the signal level in an audio equipment. Even ...

Once a mainstay of every station, the reel-to-reel recorder is now a mystery to some people. While most radio stations are fully digital now, there are still a few limited (often forgotten) parts of ...

SEATTLE -- Portable phones that fit in your ear or Dick Tracy's two-way wrist TV are still science fiction for a simple reason: Until now, Moore's Law has only applied to digital circuits. Intel ...

Analog computers are systems that perform computations by manipulating physical quantities such as electrical current, that ...

Super-sensitive switches etched in silicon? This is not your father's solid state. Sharp, vibrant, incredibly detailed: The pictures produced by Foveon's X3 image sensor chip are seductive evidence ...