View Single Post
Old 4th Aug 2020, 8:34 pm   #46
SiriusHardware
Dekatron
 
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,484
Default Re: MK14 memory upgrade

Hmm, strange. I'm just going to have to check it all again. I even went so far as to check that the A9-A10-A11 lines actually go to the right edge connector fingers on the issue VI PCB (...they do, of course).

The 74LS27 should be OK, came from RS - unfortunately I can't just unplug it and drop it into my device tester because I have soldered it pins-flat onto the copper side of a bit of veroboard.
SiriusHardware is online now