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Happy Birthday, Mr Boole

A project log for ED-64: A discrete 8-bit computer

ED-64 will be an 8-bit computer built with discrete components, and will feature a ferrite core memory (documented as a separate project).

andrew-starrAndrew Starr • 11/03/2015 at 06:05•1 Comment

There has been a hitch in arranging a stencil for the AND gates (thanks for nothing, Paypal) so I have hand-soldered the first one to test the design:

Next up, a jig to test finished AND, OR and NAND gates. I also intend to whip up a carrier board to do some speed and propagation delay tests.

Also, I have repaired the 4 faulty flip-flops from my first batch of 20. The usual problems - diodes around the wrong way, missing resistors.
Previous log

Mounting frame (almost) complete

10/17/2015 at 22:41 • 3 comments
Next log

AND gate passes testing

11/05/2015 at 02:17 • 4 comments

Discussions

Yann Guidon / YGDES wrote 11/03/2015 at 08:25 • point

If Boole knew...

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