> >>>The code is somewhere in the historical records department > >>>at Byte Craft then all I need is to find a paper reader that > >>>has been run in the last 20 years. I've got a "high speed" opto reader mechanism that I started building an interface for--in 1975. Hand-drawn pcbs for sensor amps and TTL-logic motor stepper. I would like to get this thing out one day and do it over "right" with a PIC. I've even got some tapes I could run through it. And I have seen a photo of a similar looking gadget right here on this PIC list. I can't find it and I forget who posted it. But it's out there somewhere. Barry -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist