DPDT Mod Board v1.0
This was inspired by the mod board built by GuitarPCB but was only available pre-fabricated. I decided to make my own version and give the transfer away for free. I have used this for diode switching and a few power 9v to 18v switching in the last few weeks. I think the version 2 of this will allow for trim pots. If you have any question or comments please feel free to contact me. To get proper sizing to do a toner transfer, just print the PDF below at 100% scaling. The document is 600DPI.