This video captures a demo of an early ‘beta build’ of the TTSH DIY clone of the ARP 2600 – the Two Thousand Six Hundred project.
According to the developers, “The TTSH is the attempt to replicate an old classic semi-modular synthesizer. It will be available as a kit containing PCBs and front panel (Nothing is pre-built).”
The TTSH beta was built by Lesingemonotone.
See The Human Comparator site for more info.