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4 to 1 multiplexer

A project log for The Cardboard Computer

My goal is a 4-bit cpu using discrete transistors. I am learning from scratch as I have never worked with hardware at the gate level.

Mark Nesselhaus 12/25/2016 at 22:461 Comment

December 25, 2016 - The start of laying out the cardboard logic chips ( might as well call them very large chips or VLC's )

I will be running out of diodes before the end of this and the dmux build but at least I will get started. The logic is very basic and will end up being modified by the time I am finished. Logisim likes the circuit so far.

Discussions

Yann Guidon / YGDES wrote 12/26/2016 at 06:47 point

You can get a thousand diodes for a few bucks these days... it just requires a bit of patience for the delivery :-)

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