Dr. Daves Diversions | Modern TTL-only Computers at VCF Midwest! #VCFMW #VCFMW22 @DrDavesDiversions | Uploaded September 2022 | Updated October 2024, 25 minutes ago.
Alastair Hewitt introduces us to two computers that he built using only TTL logic, implementing processing and arithmetic functionality plus video: the Novatron and the Novasaur, based on the Gigatron.

These kits, expected late 2022 (see link below), are essentially full featured home computers that run games and even CP/M.

Related:

Novasaur TTL Computer Sets the Bar (Hackaday.com)
hackaday.com/2021/10/25/vcf-east-2021-novasaur-ttl-computer-sets-the-bar

Novasaur: Retrocomputer's TTL-Only Design Emulates the Intel 8080 Processor (Hackster.io)
hackster.io/news/novasaur-retrocomputer-s-ttl-only-design-emulates-the-intel-8080-processor-afe7712e29df

Novasaur CP/M TTL Retrocomputer (Hackaday.io)
hackaday.io/project/164212-novasaur-cpm-ttl-retrocomputer

How the Gigatron TTL Microcomputer Works (Hackaday.com)
hackaday.com/2019/03/25/how-the-gigatron-ttl-microcomputer-works

Gigatron I/O and RAM expander (Hackaday.io)
hackaday.io/project/164176-gigatron-io-and-ram-expander

The Gigatron TTL microcomputer
gigatron.io

Solid State Machines (Alastair's site; kits expected to be available late 2022)
solidstatemachines.com