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** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the mid surdos, faster than we play it Paul Simon https://www.youtube.com/watch?v=A3o30YJiWsc (also featuring drum tricks) https://www.youtube.com/watch?v=frLXzG9-W3Q (until the callout around 2:30 Duro https://youtu.be/v9A9n-kMjz0?t=209 (until ~4:30) New: A different Timbalada https://youtu.be/frLXzG9-W3Q?t=955 From a840574ffb1f388603595f7bc07f1297bb707d9a Mon Sep 17 00:00:00 2001 Subject: [PATCH] More notes Try: From aac0a4a5b4f604add3c1ccb9d39a8956f2d60f00 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Add CV in controls the clock oscillilator an external clock. One idea: add a global/master pitch control/modulation function with a knob and with CV control of pitch and gate CV between 1 and 2 connected via insulated copper area below body, vias included (case drawing: https://ww2.minicircuits.com/case_style/CD542.pdf, land pattern PL-230, including GND vias (https://ww2.minicircuits.com/pcb/98-pl005.pdf Mini-circuits VCXO JTOS PL-005 Footprint for Mini-Circuits case CD542 (https://ww2.minicircuits.com/case_style/CD542.pdf) using land-pattern PL-052, including GND-vias (https://ww2.minicircuits.com/pcb/98-pl052.pdf Footprint for Mini-Circuits case GP731 (https://ww2.minicircuits.com/case_style/GP731.pdf Footprint for Mini-Circuits case TTT167 (Mini-Circuits_TTT167_LandPatternPL-079) following land pattern PL-176, including GND vias (https://ww2.minicircuits.com/pcb/98-pl012.pdf Mini-Circuits top-hat case DB1627 (https://ww2.minicircuits.com/case_style/DB1627.pdf Footprint for Mini-Circuits case HQ1157 (https://www.minicircuits.com/case_style/HQ1157.pdf Footprint for Mini-Circuits case YY161 (https://ww2.minicircuits.com/case_style/YY161.pdf) using land-pattern PL-049, including GND-connections and vias (https://ww2.minicircuits.com/pcb/98-pl049.pdf Ai Thinker Ra-01 LoRa module wireless zigbee 802.15.4 thread nordic raytac nrf52840 nrf52833 Bluetooth Low Energy Module ble module st bluetooth Taiyo Yuden BK Series (see https://www.yuden.co.jp/productdata/catalog/mlci09_e.pdf Inductor, Walsin, WLFM252009x, 2.5x2.0x0.9mm, http://www.passivecomponent.com/wp-content/uploads/inductor/WLFM_C_series.pdf Inductor, Wuerth, WE-XHMI 8080, 8.3mmx8.8mm (Script generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-117-02-xx-DV-PE-LC, 17 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Molex Nano-Fit Power Connectors, 42819-22XX, 2 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Hirose DF12E SMD, DF12E3.0-32DP-0.5V, 32 Pins per row (http://www.molex.com/pdm_docs/sd/530470610_sd.pdf), generated with kicad-footprint-generator JST PHD series connector, B10B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator Hirose DF12C SMD, DF12C3.0-36DS-0.5V, 36 Pins per row (https://cdn.harwin.com/pdfs/M20-890.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole M3, height 15, Wuerth electronics 97730456330 (https://katalog.we-online.com/em/datasheet/97730456330.pdf), generated with kicad-footprint-generator Fuse SMD 1812 (4532 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 ipc_gullwing_generator.py TSSOP, 24 Pin (https://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/(UH24)%20QFN%2005-08-1747%20Rev%20A.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 16 Pin (http://www.ti.com/lit/ds/symlink/tlv62095.pdf), generated with kicad-footprint-generator Molex KK-254 Interconnect System, old/engineering part number: 22-27-2021, 2 Pins per row (http://www.molex.com/pdm_docs/sd/1053091203_sd.pdf), generated with kicad-footprint-generator Harting har-flexicon series connector, 14111013002xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13002XXX_100228421DRW035C.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective.

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