Audio Projects

This is an amplifier based on a National Semiconductor LM1875 that Bdale and Robert built to use playing around with an electric pickup on Bdale's violin. The ultimate objective is to have a modest effects chain with amp and speaker that Robert can use when playing music with his friends. We chose to start by building a high-quality amplifier.

Whole House Audio System

Completely open design system for the new house built after the Black Forest Fire

20 watt amplifier

A 20 watt mono amplifier based on the National Semiconductor LM1875 that Bdale and Robert built to play around with electric pickups on musical instruments.