Wow, That brings back some old memories. I used one of those while in college in 1967, I do not remember which lette= r suffix it was, maybe HP9100A. I just remember using those long and skinny magnetic cards to store the pro= grams. > On May 14, 2017, at 11:36 PM, RussellMc wrote: >=20 >=20 Just my $0.02, Jean-Paul N1JPL --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .