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Fairly recently, a quick discussion came up regarding the HP75 Plug-module simulator manual and Jim Horn mentioned my having his copy. I did locate that binder and scanned the 40-page manual to pdf this evening. It may be accessed at:
http://www.pahhc.org/2011/HP75_PMS.pdf for anyone who would wish to download a copy.


Wonderful! Thank you, Jake - I've often thought it would be fun to put that into a modern FPGA either in a plug-in module shell or even in the '75 itself. Of course, with my '75 long gone it's all acedemic but we engineers have a wierd sense of fun...

I would also like to add my thanks to Jake for scanning this manual and making it available. I plan to build an expanded version of this, but fitting it into a module case is a little ambitious for me right now. At the very least I will end up with something that I could load ROM images into to expand my 75C. Now if I could only find an I/O ROM...