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SiriusHardware · 27th Oct 2020, 10:41 pm

Possibly

. Actually I would only need to pull up D4-D5 as the character generator ignores bits 6-7. Something else to throw into the mix, I 'converted' the program to fill the extra-extra RAM area 0200-03FF with '?' and render the rolling character at 0327. It has been running for ~20 minutes now and I have seen no alteration to 0227. So maybe this has something to do with RAM speed, as that RAM area is supplied by a 6116, specifically an ELECAP EL6116LP-10 (so presumably 100nS?)

27th Oct 2020, 10:41 pm	#660
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,560	Re: Mk14 vdu Possibly . Actually I would only need to pull up D4-D5 as the character generator ignores bits 6-7. Something else to throw into the mix, I 'converted' the program to fill the extra-extra RAM area 0200-03FF with '?' and render the rolling character at 0327. It has been running for ~20 minutes now and I have seen no alteration to 0227. So maybe this has something to do with RAM speed, as that RAM area is supplied by a 6116, specifically an ELECAP EL6116LP-10 (so presumably 100nS?) Last edited by SiriusHardware; 27th Oct 2020 at 10:49 pm.