{"id":16991918,"url":"https://github.com/polykit/adsr-3310-8","last_synced_at":"2026-01-30T19:32:16.069Z","repository":{"id":96850323,"uuid":"425336852","full_name":"polykit/adsr-3310-8","owner":"polykit","description":"Kicad schematics and PCB layout for an 8 channel ADSR based on CEM3310/AS3310","archived":false,"fork":false,"pushed_at":"2021-11-06T20:26:56.000Z","size":1438,"stargazers_count":13,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-10-25T17:58:52.490Z","etag":null,"topics":["adsr","as3310","cem3310","eurorack","kicad","pcb","polyphonic","schematics"],"latest_commit_sha":null,"homepage":"","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":"2021-11-06T20:01:43.000Z","updated_at":"2024-06-17T17:48:57.000Z","dependencies_parsed_at":null,"dependency_job_id":"f8efa209-7e2b-4f65-a2c3-15da0c954dde","html_url":"https://github.com/polykit/adsr-3310-8","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/polykit/adsr-3310-8","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fadsr-3310-8","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fadsr-3310-8/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fadsr-3310-8/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fadsr-3310-8/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/polykit","download_url":"https://codeload.github.com/polykit/adsr-3310-8/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/polykit%2Fadsr-3310-8/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28918219,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-30T19:10:10.838Z","status":"ssl_error","status_checked_at":"2026-01-30T19:06:40.573Z","response_time":66,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: 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":["adsr","as3310","cem3310","eurorack","kicad","pcb","polyphonic","schematics"],"created_at":"2024-10-14T03:27:45.290Z","updated_at":"2026-01-30T19:32:16.053Z","avatar_url":"https://github.com/polykit.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# Polykit ADSR-3310-8\n\nHere you can find Kicad schematics and PCB layout for an 8 channel ADSR based on the CEM3310/AS3310 integrated circuit. It has a separate control board for all 4 parameters and offers gate and trigger input and CV output. Power is supplied by standard +12V/-12V Eurorack connector.\n\n![ADSR-3310-8 PCB](adsr-3310-8-pcb.jpg)\n\n## BOM\n\n## Calibration\n\n### ADR\n\nLeave 3310 ICs out and turn attack, decay and release control to maximum. Adjust trimpots until you measure -240mV on all three test points to ground.\n\n### Timing\n\n## References\n\nhttps://www.synthxl.com/wp-content/uploads/2018/04/Crumar-Trilogy-Schematic.pdf#page=13\n\nhttps://www.vintagesynthparts.com/wp-content/uploads/2016/08/Crumar-Stratus-Service-Manual.pdf#page=14\n\nhttp://www.muzines.co.uk/articles/electro-music-engineer-cem-3310/3647\n\nhttps://www.alfarzpp.lv/eng/sc/AS3310.pdf\n\nhttps://datasheetspdf.com/pdf-file/104287/ETC/CEM3310/1\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpolykit%2Fadsr-3310-8","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpolykit%2Fadsr-3310-8","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpolykit%2Fadsr-3310-8/lists"}