Originally Posted by drait
Once the interface design is tested as working 100% (or at least 99.9% for all those who try it) I may end up making a few more, just for the experience and 'iron-time'. I may even dive into toner transfers and see if I can make some quality etched boards. And if time/money permits, I'd even like to see if I could make a SMT version that's small enough to fit inside a DB9 hood (much like the double-sided 6-transistor design Jim posted a link to).
That being said, I could part with the extras for nothing more than the cost of materials.