Ouroboros Gemini • DIY Semi-Modular Percussion and Noise Synthesizer • Rhythmic Demo

video upload by Ouroboros Electronics

"Gemini is a beginner-friendly DIY synthesizer existing at the crossroads of a primitive rhythm box and a chaotic west-coast system. With a low part count consisting only of common thru-hole components and a pre-drilled front panel intended for mountable legs; Gemini is a very approachable and ideal entry into the world of synth DIY while also being a worthwhile instrument in its own right that would still satisfy an advance builder and synthesist. Gemini consists of two individual resonant low pass filters which are each pinged by separate LFOs to create percussion such as clicks, crackles, pops and bubbling sounds in the vein of Serge and Hordijk sonics, as well as sounds akin to those of early drum machines. The LFOs each have gate outputs and rate modulation inputs, and there is a third, slower LFO with a gate output as well which can modulate either or both of the other LFOs. Using the banana jacks, the LFOs can be patched together to create syncopated rhythmic interplay between the two resonant voices or patched to create modulated patterns of spontaneity and unpredictability.

The resonance on the filters can also be brought into self-oscillation. Individual outputs allow the possibility of panning and processing each voice individually. It can also be connected via an optional ground jack for use when cross patching with other banana gear. The Gemini PCB and front panel set is now available for $50USD + $8.50 shipping within the US.

To order - email: ouroboros.electronics.us@gmail.com or visit the Ouroboros Electronics store on Reverb.com. Please visit www.ouroboros-electronics.com for more info including the BOM and a Q&A."

via this auction

"Printed circuit board and front panel for Ouroboros Gemini DIY synthesizer project. This listing is for one PCB and front panel only. Gemini is a standalone patchable synthesizer that can either be supported by standoff legs (as seen in the later photos) or mounted into a homemade wooden enclosure. These PCBs are lead-free and RoHS compliant. All components, enclosure, and building tools + materials must be sourced separately.

Gemini is a beginner-friendly DIY synthesizer existing at the crossroads of a primitive rhythm box and a chaotic west-coast system. With a low part count consisting only of common thru-hole components and a pre-drilled front panel intended for mountable legs; Gemini is a very approachable and ideal entry into the world of synth DIY while also being a very worthwhile instrument in its own right that would still satisfy an advance builder. Gemini consists of two individual resonant low pass filters which are each pinged by separate LFOs to create percussion such as clicks, crackles, pops and bubbling sounds in the vein of Serge and Hordijk sonics, as well as sounds and rhythms akin to those of early drum machines. The LFOs each have gate outputs and rate modulation inputs, and there is a third, slower LFO with a gate output as well which can modulate either or both of the other LFOs. Using the banana jacks, the LFOs can be patched together to create syncopated rhythmic interplay between the two resonant voices or patched to create modulated patterns of spontaneity and unpredictability. The resonance on the filters can also be brought into self-oscillation. Individual outputs allow the possibility of panning and processing each voice individually. It can also be connected via an optional ground jack for use when cross patching with other banana gear. Please visit the Ouroboros Electronics website for more info on Gemini including the BOM and a Q&A!

Please note that listing is for the circuit board and front panel only. All components and tools will need to be sourced individually. The BOM as well as a manual and Q&A can be found under the DIY section of the Ouroboros Electronics website. Gemini PCBs / Front Panels are shipped via USPS Priority Mail. We do not accept returns and do not claim responsibility for a non-functioning build."