So another Retrochallenge comes to a close.
What did I do lately?
Well, in the last 24 hours I have tested all of the 74 series chips, with the exception of the 74LS163 (my tester won’t touch them). All were fine, no problems at all.
I swapped the 74LS 163s around to see if the fault moved. It didn’t.
I swapped the 81LS97s, again to to see if the fault moved. It didn’t.
Where are we?
It’s hard to tell.
My newest addition is still not playing ball and I’m stumped as to why, but, that’s not the point of Retrochallenge. The point is to dust off this old kit and have a play and I’ve certainly done that 🙂
Roll on RC2018/4