Self-Tuning VCO III (DIY) by Duskwork

Full DIY kit!

– Analogue voltage controlled oscillator
– Built-in Self-Tuning function
– Manual Fine Tune
– 3-wave mixer: Square, Saw-tooth & Triangle
– Signal level LEDs
– Easy to control & use

The Duskwork Self-Tuning VCO III is designed & built for Eurorack systems, requiring an external +/-12v power supply as per the Eurorack standard. It is just 6HP in width, so it’s easy to fit into any system; from a small skiff to a studio wall.

It contains an in-built Self-Tuning circuit, so gone are the days of finding your tuner. Just hold down a C note on your 1v/oct keyboard and hit tune – wait for the green LED to light up again, and then it will be perfectly in tune. These days, many of us wish to de-tune our VCO’s, and that’s why this updated version of the VCO now has its own manual fine tune knob in addition to the Self-Tuning function.

Another useful feature of this VCO, is the in-built 3 wave mixer. You can mix the 3 waves to your preference; Triangle, Saw-Tooth & Square. Each wave has its own signal LED so that you can tell how loud each wave is at just a glance. There is just one audio output, so no need to keep moving cables if you wanted to change the oscillator source sound.

Building instructions: duskwork.net/wp-content/uploads/2023/01/ST-VCO3-Build-Guide.pdf

Size: 6hp