HP-71b CMT-64E Eprom - Whats under the black goop ?
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03-19-2020, 01:22 AM
Post: #20
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RE: HP-71b CMT-64E Eprom - Whats under the black goop ?
(03-18-2020 06:10 PM)Ken S Wrote:(03-18-2020 05:48 AM)Dave Frederickson Wrote: On p.4 of the document is a picture of an HHP card reader port EPROM module. How was this module programmed?I saw that and will bid on it. A while back I picked up one with the 32k ram and a half dozen burned eproms so could use those with this on one of my 71s. Everyone here who doesn't have this on their watch list raise their hand so I know who the other 14 of you are. Kidding aside, how difficult would it be to reproduce such a module? Though there is surely some custom logic involved, microprocessors and FPGAs have become quite small, if somewhat allergic to 5V. Remember kids, "In a democracy, you get the government you deserve." |
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