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MK's 5-note sequencer. Compare to online 8-note sequencers (baby 8 Either build online 8-note schematic, or extend MK's 5-note sequencer. Compare to online 8-note sequencers (baby 8 Either build online 8-note schematic, or extend MK's 5-note to 8-note. Expanding out to 8 notes means ~$16-20 in parts, needing only one tl074 and support Kassutronic's KS-20 VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules Envelope/Envelope.kicad_pcb | 2 pin 0.6x1mm 0.375mm height package, https://www.ti.com/lit/ml/mpss034c/mpss034c.pdf, https://www.ti.com/lit/ds/symlink/tpd6e05u06.pdf USON, 14 Pin (https://www.ti.com/lit/ds/symlink/tpd6e05u06.pdf#page=28), generated with kicad-footprint-generator Mounting Hardware, inside blind hole M1.6, height 4.5, Wuerth electronics 9774015633 (https://katalog.we-online.com/em/datasheet/9774015633.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 6 times 0.15 mm² wires, reinforced insulation, conductor diameter 0.9mm, outer diameter 2.3mm, size source Multi-Contact FLEXI-xV 1.0 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex Molex 1.00mm Pitch Easy-On Type FFC/FPC Connector, For LVDS, 2.33mm Height, Right Angle, Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-89011xx, 11 Pins per row (http://www.molex.com/pdm_docs/sd/460071105_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-137-02-xx-DV-PE-LC, 37 Pins per row (http://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=82181_SOFTSHELL_HIGH_DENSITY&DocType=CS&DocLang=EN), generated with kicad-footprint-generator Molex Pico-EZmate series connector, B06B-ZESK-1D, with boss (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole PLCC, 32 pins, through hole M1.6, height 2.5, Wuerth electronics 9774040360 (https://katalog.we-online.de/em/datasheet/9774040360.pdf), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55932-0910, with PCB locator, 8 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog&lang=en&documentid=D31688_en), generated with kicad-footprint-generator Molex Picoflex Ribbon-Cable Connectors, 90814-0008, 8 Pins per row (https://www.hirose.com/product/document?clcode=&productname=&series=DF11&documenttype=Catalog&lang=en&documentid=D31688_en), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 2 times 0.5 mm² wires, reinforced insulation, conductor diameter 1.7mm, outer diameter 1mm, size source Multi-Contact FLEXI-xV 2.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Capacitor SMD AVX-J (1608-08 Metric), IPC_7351 nominal, (Body size source: IPC-SM-782 page 80, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py SO, 14 Pin Vertical EPCOS-B66359J1014T AUDIO TRAFO LUNDAHL, https://www.lundahltransformers.com/wp-content/uploads/datasheets/1587.pdf Transformer, Transformator, ETD29, 13 Pin, Horizontal, EPCOS-B66359A1013T, Transformer Transformator ETD29 14 Pin (https://www.ti.com/lit/ds/symlink/tpd6e05u06.pdf#page=28), generated with kicad-footprint-generator ipc_gullwing_generator.py TSOP-I, 32 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/doc0015.pdf), generated with kicad-footprint-generator Fuse SMD 0603 (1608 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 80, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator JST PH series connector, S6P-VH (http://www.jst-mfg.com/product/pdf/eng/eVH.pdf), generated with kicad-footprint-generator Molex SPOX Connector System, 5268-03A, 3 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger.

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