{"id":102,"date":"2008-03-22T22:18:34","date_gmt":"2008-03-23T03:18:34","guid":{"rendered":"http:\/\/pugix.com\/synth\/motm-800-adsr-envelope-generator\/"},"modified":"2023-01-10T09:51:14","modified_gmt":"2023-01-10T14:51:14","slug":"motm-800-adsr-envelope-generator","status":"publish","type":"post","link":"https:\/\/pugix.com\/synth\/motm-800-adsr-envelope-generator\/","title":{"rendered":"MOTM-800 ADSR Envelope Generator"},"content":{"rendered":"

\"MOTM-800<\/a>Quantity: 2 with my own DIY modifications and 2 with DB-800<\/a> modifications
\n<\/span><\/p>\n

From the Synthtech<\/a> website:<\/p>\n

The MOTM-800 provides the standard ADSR (Attack, Decay, Sustain, and Release) envelope for controlling VCAs, filters, and other CV inputs. Both positive-going (0V to +5V) and negative-going (0V to -5V) envelopes are simultaneously available.<\/p>\n

Attack, Decay, and Release times can be set from 1ms to over 14 seconds using the smooth feel, conductive-plastic Bourns log pots.<\/p>\n

The MOTM-800 actually can be operated in one of 3 modes:<\/p>\n

GATE & TRIGGER: a full ADSR (Attack-Decay-Sustain-Release) cycle, with re-triggerable AD portion with GATE on and a new TRIGGER. GATE only: A-D-S-R using Roland “drop GATE” synths (SH-101, etc). MOTM-800s generate full ADSR cycles with GATE only. TRIGGER only: A-D cycle, useful for “stretching” drum pad envelopes.<\/p><\/blockquote>\n

DIY Modifications:
\nAdded gate comparator with Schmitt function
\nOutput limited to 5V max with clipping circuit
\nOutput level LED<\/span><\/p>\n

My modifications are similar to the DB-800 Daughterboard <\/a>from Scott Juskiw.<\/p>\n

Here is what my DIY perfboard modifications look like:<\/p>\n

\"\"<\/a><\/p>\n

The DB-800 version before final assembly:<\/p>\n

\"\"<\/a><\/p>\n

The DB-800 after final assembly.\u00a0 I soldered all the wires, rather than use connectors.<\/p>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Quantity: 2 with my own DIY modifications and 2 with DB-800 modifications From the Synthtech website: The MOTM-800 provides the standard ADSR (Attack, Decay, Sustain, and Release) envelope for controlling … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":289,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3],"tags":[47,35],"class_list":["post-102","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-synth-tech","tag-adsr","tag-envelope-generator"],"yoast_head":"\nMOTM-800 ADSR Envelope Generator - Richard Brewster's Electronic Sounds<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pugix.com\/synth\/motm-800-adsr-envelope-generator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MOTM-800 ADSR Envelope Generator - Richard Brewster's Electronic Sounds\" \/>\n<meta property=\"og:description\" content=\"Quantity: 2 with my own DIY modifications and 2 with DB-800 modifications From the Synthtech website: The MOTM-800 provides the standard ADSR (Attack, Decay, Sustain, and Release) envelope for controlling ... 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