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OpenSCAD design that allows to generate CV, in particular for controlling VCO notes. The classic is called a "Baby 8", so called because it's a 5-roll, a 5-roll, a 5-roll, I think this is the two clockwise-most pins, looking from below. Clock rate (B100k) (not sure yet which 2 pins LED diameter 5.0mm Tantal Electrolytic Capacitor CP, Radial series, Radial, pin pitch=7.50mm, , length*width=9*6.7mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 18mm length 11mm diameter 5mm Fastron MISC Inductor, Axial series, Axial, Horizontal, pin pitch=45mm, , length*diameter=42*29.0mm^2, Electrolytic Capacitor, , http://www.vishay.com/docs/28325/021asm.pdf CP Axial series Axial Vertical pin pitch 10.00mm diameter 26mm Electrolytic Capacitor CP Radial series Radial pin pitch 55.88mm 11W length 50mm width 9mm height 9mm Resistor, Axial_Shunt series, Box, pin pitch=55.88mm, 15W, length*width*height=48*12.5*12.5mm^3, http://cdn-reichelt.de/documents/datenblatt/B400/5WAXIAL_9WAXIAL_11WAXIAL_17WAXIAL%23YAG.pdf Resistor Axial_Power series Box pin pitch 5.0mm, 45 degree angled, see http://www.mouser.com/ds/2/16/PCBMETRC-24178.pdf From caaf12f2da0fe056d0b625b9c1a860efbae9f4d1 Mon Sep 17 00:00:00 2001 Subject: [PATCH 03/13] More assembly notes for v1 front panel and Pin 1, vertical PCB mount, asymmetric push, https://www.neutrik.com/en/product/ncj6fa-h-da Combo A series, 3 pole female XLR receptacle, grounding: without ground / shell contact, vertical PCB mount, https://www.neutrik.com/en/product/nc4fah A Series, 3 pole female XLR receptacle, grounding: without ground/shell contact, vertical PCB mount, black chrome shell, https://www.neutrik.com/en/product/nc3mbhr-b B Series, 3 pole male XLR receptacle, grounding: separate ground contact connected to trigger, gate jack is normalized\nto +12 V, 10 mA -12 V ## Photos ### Photos ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md ``` git clone git@github.com:holmesrichards/precadsr.git New KiCad version; non Al panel Gerbers .gitignore | 2 | 1 | 10R | Resistor | | Tayda | A-2939 | | Tayda | A-1157 or A-2425 | | | | | | | Tayda | A-2939 | | C10 | 1 | SW_SPDT | SPDT miniature toggle switch | | J8 | 1 | Synth_power_2x5 | 2x5 pin shrouded header 2.54 mm spacing | | 8 pin package (http://datasheet.octopart.com/ZDT6758TA-Zetex-datasheet-68057.pdf Diodes Incorporated (https://www.diodes.com/assets/Package-Files/U-DFN2510-10-Type-CJ.pdf U-DFN2020-6 (Type F) (https://www.diodes.com/assets/Package-Files/U-DFN2020-6-Type-F.pdf HVQFN, 16 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0140.PDF (T2855-4)), generated with kicad-footprint-generator ipc_noLead_generator.py DFN8 2x2, 0.5P (https://www.onsemi.com/pub/Collateral/511AT.PDF On Semiconductor, SIP-38, 9x7mm, (https://www.onsemi.com/pub/Collateral/AX-SIP-SFEU-D.PDF#page=19 8-Lead Plastic PSOP, Exposed Die Pad (TI DDA0008B, see http://www.ti.com/lit/ds/symlink/lm3404.pdf 8-pin HTSOP package with 1.27mm pin pitch, compatible with SOIC-8, 3.9x4.9mm² body, exposed pad, thermal vias in pads, 4 Pins per row.

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