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The Gigatron TTL is an 8-bit microcomputer that you can build yourself. It is entirely TTL and functions without a CPU.
Retrocomputing

The Gigatron TTL is an 8-bit microcomputer that you can build yourself. It is entirely TTL (simple logic gate chips) and functions without an additional processor. This is a fun project for hobbyists. Several games have been made for this project. It has VGA output and 4 voice sound. This is the blank PCB only, included is the Pluggy McPlugface blank PCB for PS/2 keyboard interface.

Visit https://gigatron.io for documentation and other details.

Links to code and documentation

Documentation (gigatron.io)

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Gigatron TTL PCB Only with Pluggy McPlugface PCB

Sold by Maxwell's Gadgets

$20.00

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Maxwell's Gadgets

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Warsaw, New York, United States
0 orders since Apr 17, 2026
I specialize in retro computer hardware, especially for Apple II's. I've been selling my products for years on eBay, Etsy and Tindie.