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Add VCA shaek layout 0d370a24cdcaf6d3fd7f0316855522b79df0fe9a 3583986e89 Finished PCB, passes all passable DRCs Footprint selection, some PCB layout choices From c6741b48f0ef8a6e69ecbca1a47bc4f4b481e2a3 Mon Sep 17 00:00:00 2001 Subject: [PATCH] To GitLab Hardware/PCB/precadsr/precadsr.kicad_pcb | 3 | 100R | Resistor | | | | | R23, R24, R25, R27 Switch, triple pole double throw, separate symbols | | | Tayda | A-804 | | | | | | | 1 | B10k | **Potentiometer, 9 mm or 16 mm vertical board mount OR: | | S2 | 1 Kosmo_panel | 2 Smaller cap (476nF?) for C1 - Ceramic 104s for C10, C14, might be more robust and easier to adjust CV output range, switch between 5v and 2.5v max (or whatever is configured). Momentary-normal-off pushbutton to manually reset. LEDs: One per step, to set output voltages. (10) One potentiometer for internal clock rate. Switches: Update current state of project. Add cascading input and output CV continously while paused. Sequencer cascading to trigger steps. Replace C10 with 100K resistor, and bridge out R44 with a diameter between 16-19 mm: https://www.keyelco.com/product.cfm/product_id/826 Keystone #500, 12mm CR1220 battery holder, Keystone P/N 2468, http://www.keyelco.com/product-pdf.cfm?p=1033 AAA battery cell holder 2xAA cell battery holder, Memory Protection Devices P/N BA9VPC, http://www.memoryprotectiondevices.com/datasheets/BA9VPC-datasheet.pdf PP3 Battery Holder (http://www.memoryprotectiondevices.com/datasheets/BK-18650-PC2-datasheet.pdf Keystone Battery Holder 2479 Battery Type 3xAAA Keystone type 3034 coin cell retainer CR2032 BR2032 BatteryHolder Battery AA battery holder Keystone 2xAAA cell battery holder, Memory Protection Devices P/N BC12AAPC, http://www.memoryprotectiondevices.com/datasheets/BC12AAPC-datasheet.pdf BC2003 CR2032 2032 Battery Holder 18650 Battery Holder BH-331P Battery Type 3xAA (Script generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-108-02-xxx-DV-BE-LC, 8 Pins (https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=826576&DocType=Customer+Drawing&DocLang=English), generated with kicad-footprint-generator TE FPC connector, 38 top-side contacts, 0.5mm pitch, SMT, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F1734839%7FC%7Fpdf%7FEnglish%7FENG_CD_1734839_C_C_1734839.pdf%7F4-1734839-0 TE FPC connector, 05 top-side contacts, 0.5mm pitch, SMT, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F1734839%7FC%7Fpdf%7FEnglish%7FENG_CD_1734839_C_C_1734839.pdf%7F4-1734839-0 TE FPC connector, 05 top-side contacts, 0.5mm pitch, 1.2mm height, https://www.molex.com/pdm_docs/sd/545481071_sd.pdf Molex Molex 1.00mm Pitch Easy-On BackFlip, Right-Angle, Bottom Contact FFC/FPC, 200528-0200, 20 Circuits (https://www.molex.com/pdm_docs/sd/2005280200_sd.pdf), generated with kicad-footprint-generator Molex Pico-Clasp series connector, BM08B-GHS-TBT (http://www.jst-mfg.com/product/pdf/eng/eGH.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py 4-Lead Plastic Small outline http://www.ti.com/lit/ml/mpds158c/mpds158c.pdf VSO40: plastic very small outline package; 18 leads; body width 4.4 mm; (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot556-1_po.pdf 24-Lead Plastic QFN (2mm x.

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