Testing the TTSH, Arp 2600 clone View this post on Instagram It's aliiiive!! It"s alive… #ttsh #diysynth #modularsynth #arp2600 A post shared by Björn Fogelberg (@bjorn_knatter_fogelberg) on Jun 25, 2017 at 10:39am PDT June 26th, 2017|Analog, DIY, Hardware, Instagram, modular, Music production, Synthesizer|