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Old 12th Nov 2020, 5:46 am   #111
Buzby123's Avatar
Join Date: Oct 2011
Location: Culcheth, Cheshire, UK.
Posts: 333
Default Re: I found it! A very sorry looking MK14.

With 0,1, or 2 RAM chips I get the same result, 'X XXX XX', where X is a flickering digit.

With no ROMs, I get all digits, all segs.

In a few days I'm getting a set of brand spanking new TTL chips, so I can replace all those vintage bits.

I don't remember having all these problems 40 years ago.

This retro computing was easier when it was cutting edge.


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