Screen shot 2013-01-21 at 9.14.06 AM

Sylvain, AKA MicroSyl, wanted to build an audio spectrum display using old “magic eye” vacuum tubes:

After doing some project with vintage tube I got the idea of doing an audio spectrum display with “magic eyes tube” and driving those with an AVR MCU with Fast Fourier Transform.

The enclosure is sweet too! [via Embedded Projects]