4 input audio switch box


This project allows switching any of  four male audio 3.5 mm inputs to one 3.5mm output.  It uses a 2"x2"x1.5"flanged potting box allowing surface  mounting.  I use it to switch between my Ipod's and Sirus radio to the remote input on a car CD player.  The project has been in use for several years and all parts but the box are available from Jameco.   I have the schematic, parts list and a few pictures if anyone is interested.


Acritacens (Jan 24, 2013)

Is there a way to modify this to 4 channel audio inputs?