Re: Early EPROM programmer.
Yes, I remember seeing those - It looks like the Potcore they've used in the Step-Up Vpp supply is a similar size to the BBC Computer one I used on one I'd designed & built in the late 80's for my College Electronics project.
And that Z80 Dev system is a bit more like the old & large Intel 8008? / 8080? ones, that I think TonyDuell said he had.
I think now that the early one here has been identified as a Softy-2 one, it is much more closely related to its Softy-1 predecessor that had its own Softy thread, so if anything it would make more sense to merge with that.
But it might be best to keep it separate / rename to Softy-2, to not get it too mixed-up with others ones, if we do manage to get an upload of the firmware - or maybe a scan of the manuals - here.
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