Category Archives: TTSH

Testing, cabinetry and mods

If you’re following me on Instagram you may have already seen some video evidence of my TTSH making noise. All components are in place, preliminary calibration has been done and we’re really pretty darned close to having a working TTSH on our hands.

TTSH mainboard ready for stuffing

Stuffing the TTSH mainboard

The mainboard of the TTSH seems pretty imposing when it’s empty, but if you go really, really slowly… it will seem like it takes forever. When it’s done, you’ll find yourself wondering how close you really are to being done.

TTSH 4012 filter detail

TTSH sub modules

The first step in the actual TTSH assembly is the submodules – oscillators, filter and power supply. Things are getting a bit exciting, with the risk of physical injury (to me) and the threat of a lawsuit (from Moog). You’ll also learn how the ladder filter got its name.

Transistor matching

This is the second in a series of articles on my TTSH Arp 2600 clone project, in which I demystify, for myself at least, the process and principles of transistor matching.

TTSH panels in box

The TTSH Project

I’m about to start building a clone of the ARP 2600, a semi-modular analogue synth from the 1970s. Here’s an introduction to the project for people who aren’t already completely mental for vintage analogue synths.