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Old 14th Jun 2019, 10:23 pm   #189
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 3,154
Default Re: MK14 schematic revisions

Ah, well, the Tesla PROMs are Slothie's other problem.

I could send you what info I have about those - over and above what was discussed earlier in the forum, and maybe the two of you can forge ahead on that problem either together or independently.

With regard to Utsource, I know you (Tim) had a good experience with them recently but someone else sent me a pair of PROMs obtained from there which, although they were genuine DM74S571s, turned out to be already programmed. Granted they were suspiciously cheap, and if you paid more you'd be more likely to get genuine unprogrammed blanks even from the same source.

Everything is still available - if you can afford it.
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