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Late Night Testing and Hacking

A project log for WITCH-E Decimal Based Computer

Document and create a modern replica of the Harwell Dekatron computer known as the WITCH

Dave's Dev Lab 10/27/2017 at 06:011 Comment

So I finish up extremely late this evening with my "DayJob", and despite being a bit a drained from debugging some new hardware all day, I decided to build up another Relay-D Latch board. I also found some scrap acrylic in the the garage and drilled some holes to mount the modules. I plan to get laser cut acrylic via Ponoko.com , but for now this will help test the cable routing and keep things from flopping around. I had to tweak the schmitt trigger RC values some to get the firs latch to work, but it eventual worked. Unfortunately, tweaking the RC values wasn't enough to keep the second latch from getting a carry over from the first latch. I'm going to have to work on my "key up" and debouncing before I do the next revision...

Discussions

Dr. Cockroach wrote 10/27/2017 at 08:32 point

That looks so neat and clean :-)

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