{"id":16991910,"url":"https://github.com/polykit/kosmo-sidechain","last_synced_at":"2026-02-14T12:37:11.322Z","repository":{"id":96852628,"uuid":"578792843","full_name":"polykit/kosmo-sidechain","owner":"polykit","description":"Kicad PCB and schematics for sidechain/ducking module in Kosmo modular synthesizer format","archived":false,"fork":false,"pushed_at":"2022-12-17T13:55:57.000Z","size":2049,"stargazers_count":9,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2026-02-06T13:33:01.845Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/polykit.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2022-12-15T22:28:43.000Z","updated_at":"2025-05-19T21:22:20.000Z","dependencies_parsed_at":"2023-04-16T06:19:07.445Z","dependency_job_id":null,"html_url":"https://github.com/polykit/kosmo-sidechain","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/polykit/kosmo-sidechain","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fkosmo-sidechain","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fkosmo-sidechain/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fkosmo-sidechain/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fkosmo-sidechain/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/polykit","download_url":"https://codeload.github.com/polykit/kosmo-sidechain/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fkosmo-sidechain/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29443495,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-14T10:51:12.367Z","status":"ssl_error","status_checked_at":"2026-02-14T10:50:52.088Z","response_time":53,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-10-14T03:27:44.692Z","updated_at":"2026-02-14T12:37:11.292Z","avatar_url":"https://github.com/polykit.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# Kosmo Sidechain (Ducking) Module\n\nThis repository contains schematics and PCB layout files of a Sidechain/Ducking module in Kosmo format originating on a design by Juanito Moore. Gerber files can be found in the [plots](plots/) directory.\n\n## Schematics \u0026 PCB\n\n![Kosmo Sidechain Ducking Build](kosmo-sidechain-build.jpg)\n\n![Kosmo Sidechain Ducking Schematics](kosmo-sidechain.png)\n\n## BOM\n\n|Ref           |Qnty|Value     |Name               |Description                                                     |\n|--------------|----|----------|-------------------|----------------------------------------------------------------|\n|C1            |1   |1u        |CP-Device          |Polarized capacitor                                             |\n|C2, C3        |2   |10u       |CP-Device          |Polarized capacitor                                             |\n|C4            |1   |100n      |C                  |Unpolarized capacitor                                           |\n|D1, D2, D3, D4|4   |1N4148    |1N4148             |100V 0.15A standard switching diode, DO-35                      |\n|J1            |1   |Kick      |AudioJack2         |Audio Jack, Mono, 6,35mm                                        |\n|J2            |1   |In        |AudioJack2         |Audio Jack, Mono, 6,35mm                                        |\n|J3            |1   |Out       |AudioJack2         |Audio Jack, Mono, 6,35mm                                        |\n|J4            |1   |POWER     |Conn_02x05_Odd_Even|10-pin IDC Connector                                            |\n|R1            |1   |10k       |R                  |Resistor                                                        |\n|R2, R8        |2   |100k      |R                  |Resistor                                                        |\n|R3            |1   |33k       |R                  |Resistor                                                        |\n|R4, R6        |2   |47k       |R                  |Resistor                                                        |\n|R5, R9        |2   |220       |R                  |Resistor                                                        |\n|R7            |1   |1k        |R                  |Resistor                                                        |\n|R10, R11      |2   |10        |R                  |Resistor                                                        |\n|RV1           |1   |Mix 10k   |R_POT-Device       |Potentiometer                                                   |\n|RV2           |1   |Amount 10k|R_POT-Device       |Potentiometer                                                   |\n|RV3           |1   |Decay 100k|R_POT-Device       |Potentiometer                                                   |\n|U1            |1   |TL074     |TL074              |Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14|\n|U2            |1   |Vactrol   |VTL5C              |Low Cost Axial Vactrols                                         |\n\n## References\n\nhttps://www.youtube.com/watch?v=cXaip9cjlhU\n\nhttps://www.instructables.com/Freestyle-High-Fidelity-Ducking-Circuit/\n\nhttps://lookmumnocomputer.discourse.group/t/side-chain-module-ducking\n\nhttps://www.lookmumnocomputer.com/modular\n\nhttps://github.com/telec16/kicad\n\nhttps://github.com/holmesrichards/Kosmo_panel\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpolykit%2Fkosmo-sidechain","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpolykit%2Fkosmo-sidechain","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpolykit%2Fkosmo-sidechain/lists"}