Auto A/B Box Function Demo

The Auto A/B Box was designed as a means to overcome expectation bias when comparing two audio circuits. You can compare circuits in the following ways:
-Manually toggle A/B with LED indication
-Manually toggle A/B without LED indication
-Automatically toggle A/B with LED indication
-Automatically toggle A/B without LED indication
The rate that auto-mode toggles between A or B can be adjusted with an internal trimpot.