Did you ever want to make a ribbon microphone? If so, the Frank Olson Twins website is the place to go. This site is a place where old audio technology not only lives, but "rules."

A ribbon microphone is a type of microphone that uses a thin aluminum, duraluminum, or nanofilm of electrically conductive ribbon placed between the poles of a magnet to produce a voltage by electromagnetic induction.

This microphone is inspired by an RCA Bk mic with Olson’s twists. In this ribbon microphone, a thin strip of corrugated metal suspended between the poles of magnets acts as a transducer. Stacked layers of walnut veneer make up the frame for the motor. The wood pieces are cut with a vinyl cutter, stacked up, and glued into a monolithic structure using cyanoacrylate glue.

To get an idea of how this is accomplished, watch the following video: