Electric Musical Instrument 3D Printed Amplifier.
Full details and a build guide is on Instructables!
<a href="https://www.instructables.com/id/An-Electric-Musical-Instrument-3D-Printed-Amplifie/">Electric Musical Instrument 3D Printed Amplifier</a>.
For news, updates, and inside information, plus options to help support my work, visit http://ko-fi.com/gregthemaker