Sometimes, all you need is a steady control voltage - here you can have four of them.
There's nothing spectacular here, just four buffered outputs that will supply between -5V and +5V at the twist of a knob - feed it into a DC-coupled mixer and you've got an instant voltage offset.
The assembled board is built with Erthenvar-style jacks and Alpha potentiometers and will fit nicely behind a 6HP panel. The PCB only option requires SOIC and 0805 surface mount components so some familiarity with these will be assumed - a BOM will be sent with the board.
Files for panel fabrication can be found here.
NOTE: these boards have a HASL (Hot Air Surface Level) finish which is not lead-free - although lead-free solder and RoHS-compliant parts were used in construction, exercise common sense when handling the board.
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Royal Mail: International Tracked and Signed
International Tracked and Signed service - signature required on receipt. Shipping generally takes 5-7 days depending on customs etc.
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I've been a musician for a while now - up until quite recently my weapon of choice was a bass guitar, but having fallen down the rabbit hole that is modular synthesis I have a new way to make noise ...
I started out the usual way: buy a rack and a bunch of modules (ADSR, VCA, VCO, that kind of thing) and start making noises. Then I discovered the DIY scene and it all snowballed from there - sequencers, filters, logic modules ... four racks full of noisemakers later and I'm still not done.
I'm a big believer in the KISS principle - Keep It Simple, Stupid! If you want all-singing, all-dancing multifunction modules then this really isn't the place for you - I prefer to build modules to do one thing and (hopefully) do it well. This is a rule I follow when I develop software, and hardware is no different.
The stuff you'll find here will generally be 'excess' from a run of boards - the underlying designs will have been tested and known to work, all you need to do is source appropriate componentry and do a build. I'm not going to make any claims that I'm the world's best circuit designer, but hey, if it ain't broke ...
For the really curious, despite working as a software developer I do have a PhD in theoretical physics, specifically the numerical simulation of explosions. It isn't nearly as interesting as you might imagine :-p