alan.b.pearce@stfc.ac.uk wrote: > Same when I started my apprenticeship in new Zealand, in 1969. They > were still hand drawn 10 years later and PCBs laid out with real tape, > although I suspect by then any large company in the USA would have had > CAD systems for both functions. Hewlett Packard in New Jersey didn't when I started there in 1980. I drew schematics on D size vellum using pencil and eraser. These were eventually given to a board guy who would lay it out at 2.5x or 4x scale with calibrated tape. That would get photographed in transparency mode to make the 1:1 mask films. They were getting in and testing a CAD system when I left there in 1982. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .