CAVE PROJECT! This information is here to support people who have been making MFOS gear since I started posting synth-diy information back in about 2002 or 2003. These projects have ALL been superceded by new and better designs. I do not recommend that you make these since they have been improved over the years. I am not providing any support for these projects beyond publishing this historical information.
This is an intermediate to advanced project and I do not recommend it as a first project if you are just getting started in synths or electronics. Only the circuit and some explanation are shown here. A lot of project building experience and electronics knowledge and equipment ownership (scope, meters, etc.) is taken for granted. If you are interested in building this project please read the entire page before ordering PC boards to ensure that the information provided is thorough enough for you to complete the project successfully.

Regulated Plus and Minus 12 Volt Power Supply

!!!WARNING!!! ELECTRIC SHOCK HAZARD !!!WARNING!!!
DO NOT attempt to construct any line operated equipment unless you are absolutely sure of what you are doing. Death or serious injury (to the constructor or others) is not uncommon with home construction of line powered projects. MFOS takes no responsibility for any injury or death resulting from, whether directly or indirectly, the reader's inability to correctly and safely construct this circuit.

Power Supply Schematic

Power Supply PCB Layout (Component Side View)

Power Supply Parts Layout