I have been thinking about offering kits for people to make their own interfaces and not have the hassle of also having to buy a kit to etch the pcb board. In this kit, I would include all necessary parts including the pcb board that is etched, drilled, and ready to solder plus illustrations and complete instructions. I've done a great deal of testing and have found components that if soldered correctly, will work every time. With this kit, you won't have to worry about flipping the transistors around because I have illustrations for the orientation of every transistor I use in simple and easy to understand format. Even if you're not interested, please give me whatever feedback you have. I'm just trying to see if anyone would be interested. I know many people avoid building them because of the difficulty with etching the boards. The rest is pretty simple. Thanks guys. Please email me for pricing information