Steve Harmon

March 9, 2018
Synthrotek Passive Mult

2HP Passive Mult

The Synthrotek Passive Mult is the module that keeps on giving! Use this as either a 2x 1-to-3 passive multiplier or one 1-to-6 passive multiplier.  Input […]
September 10, 2017
TST Eurorack Module

TST Eurorack Module!

Buy the TST Completed module, Kit, and PCB HERE Test your modules safely without reaching into your case! The TST has two keyed 16-pin headers on […]
August 7, 2017

Division 6 Business Card Sequencer

The Division 6 packs a lot of sequencer into a tiny package! This 16-step circuit can work as a sequencer or as a handheld keyboard. Features: […]
August 7, 2017

Division 6 Dual Mini Sequencer for Eurorack

This module gives you two handy little sequencers behind one Eurorack panel. Why would you need more than one sequencer? Why would you need mini sequencers? […]
June 12, 2017
MST 4HP Buffered Multiple

MST 4HP Buffered Multiple Released

The MST ’07 Buffered Multiple is the original buffered mult design invented by George Mattson in 2007. It’s a precision mult that is perfect for 1V/O […]
September 13, 2016

Synthrotek brand Patch Cable Holders

       Synthrotek’s Cable Holder 7  and Cable Holder 27  are designed intentionally for the Eurorack modular market.  The “7” is designed to fit on […]
August 26, 2016
Synthrotek ADSR Eurorack Envelope Generator

Synthrotek ADSR 4HP Eurorack Envelope Generator

  The Synthrotek ADSR is a small and simple envelope generator with some very useful features.  CV is additive for overall length of ADR stages in […]
August 25, 2016
Classic Syntar Design - The world's first keytar, invented by George Mattson

Classic Syntar T-shirt and Hoodie Designs

No classic synth t-shirt collection is complete without the original SYNTAR marketing material graphics which were HAND DRAWN by George Mattson himself!!!.  This shirt also comes […]
June 8, 2016


CLICK HERE TO BUY NOW!   The MST MIDI to CV Expander module is a tiny but extremely powerful expansion module for the MST MIDI to […]