Category Archives: TTSH

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.