Build a BCD-Digital Potentiometer

In this high quality project, Robert Nance Dee designs a potentiometer for accuracy and flexibility. A pot with 64 levels and precision metal film resistors that is hard to beat for sound or facility, as he describes it. The project started with a clean sheet, looking to address potentiometer design with a quality that rivaled existing designs while maintaining a reasonable cost. This article was originally published in audioXpress, September 2011.

In this month’s issue, you can read our review of the elysia xfilter 500, an extraordinary equalizer “Made in Germany” in a 500-series format that offers a precise stereo image based on computer-selected, stepped potentiometers and low-tolerance film capacitors. In …

The new Drawmer MC2.1 Monitor Controller combines the complexity of several mix-checking features with the fidelity and transparency of the highest quality monitoring circuit. This versatile and intuitive unit offers multiple inputs and outputs, including a dedicated mono output, speaker-level …