7400 competition entry: Mr. @#?%!…A 74xx based Q*Bert-ese obscenity generator

Here’s David’s 7400 entry, the Mr. @#?%!…A 74xx based Q*Bert-ese obscenity generator:

In honor of the 30th anniversary of Q*Bert’s release in arcades, I present “Mr. @#?%!”… A 74xx-based Q*Bert-ese Obscenity Generator, built exclusively using parts available in 1982.

Build something that uses or abuses a logic chip and get amazing boards, tools, and other swag. The Open 7400 Logic Competition promotes awareness of the basic building blocks of modern circuits. Devious geeks ignited the computer revolution with discrete logic computers, what can you do? Details and entry form here.

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  1. Where can I get one as doorbell…. :-D I Got to get hold of that voice synthesizing chip. I doubt that they are in production and in CMOS first generation so extremely ESD sensitive….

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