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SiriusHardware · 8th Mar 2021, 7:16 pm

If you have potential access to an EPROM programmer you may wish to consider 'refreshing' the original 2764 EPROMs to set the data fade 'clock' back to zero - but first, stash copies of the code you've read out from them absolutely everywhere.

A less fraught approach (than over-programming the original devices) would be to obtain some more 2764 EPROMs and copy the contents into those and keep them as your 'hard' backups.

As you may have noticed there is another thread concerning a project to replicate the old SOFTY 1 2708 reader / programmer, but maybe you can read them with your PIC / Pi hybrid if you can somehow juggle all those exotic supply voltages.

8th Mar 2021, 7:16 pm	#26
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,556	Re: The Transam Triton Personal Computer If you have potential access to an EPROM programmer you may wish to consider 'refreshing' the original 2764 EPROMs to set the data fade 'clock' back to zero - but first, stash copies of the code you've read out from them absolutely everywhere. A less fraught approach (than over-programming the original devices) would be to obtain some more 2764 EPROMs and copy the contents into those and keep them as your 'hard' backups. As you may have noticed there is another thread concerning a project to replicate the old SOFTY 1 2708 reader / programmer, but maybe you can read them with your PIC / Pi hybrid if you can somehow juggle all those exotic supply voltages.