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B/sr1_full.png differ aac0a4a5b4 Notes from MK's PCB livestream Notes from MK's PCB livestream Footprints: - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals - make power connection traces larger; MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules schematic start, and some example modules 811ef45c764021f623b8bb59234df1314fce4e91 12V, -12V and ground needed, probably up to the version of bornier4 simple 5-pin terminal block, pitch 5.08mm, revamped version of NL4MD-V with 8 vertical PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3faav1-da AA Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3fav1 A Series, 3 pole male XLR receptacle, grounding: without ground/shell contact, vertical PCB mount, https://www.neutrik.com/en/product/nc3mbv-1 B Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, vertical PCB mount, color coding possible, https://www.neutrik.com/en/product/nc5fav-sw A Series, 3 pole male XLR receptacle, grounding: separate ground contact connected to EP (http://www.aosmd.com/res/packaging_information/DFN5x6_8L_EP1_P.pdf 56-Lead Plastic Quad Flat, No Lead Package - 4x4x0.9 mm Body [LFCSP], (see http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/lfcspcp/cp_20_6.pdf LFCSP, 20 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/atmel-8235-8-bit-avr-microcontroller-attiny20_datasheet.pdf#page=212), generated with kicad-footprint-generator Soldered wire connection, for 5 times 0.1 mm² wires, reinforced insulation, conductor diameter 1.4mm, outer diameter 1.5mm, size source Multi-Contact FLEXI-E/HK 0.127 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator connector Molex Mega-Fit top entry Molex Mini-Universal MATE-N-LOK, old mpn/engineering number: 5566-14A, example for new part number: A-41792-0015 example for new mpn: 39-30-0240, 12 Pins (http://www.molex.com/pdm_docs/sd/559320530_sd.pdf), generated with kicad-footprint-generator JST ZE series connector, B13B-PH-SM4-TB (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator Molex Nano-Fit side entry JST GH side entry Molex Panelmate series connector, S28B-PUDSS-1 (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSSOP, 20 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0140.PDF (T3255-6)), generated with kicad-footprint-generator ipc_noLead_generator.py WQFN, 14 Pin (http://www.ti.com/lit/ds/symlink/tlv9004.pdf#page=64), generated with kicad-footprint-generator Molex PicoBlade series connector, S12B-PUDSS-1 (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator Molex PicoBlade Connector System, 5267-07A, 7 Pins (http://www.farnell.com/datasheets/2157639.pdf), generated with kicad-footprint-generator Molex Mini-Fit Jr. Power Connectors, old mpn/engineering number: 5569-08A1, example for new mpn: 39-28-x20x, 10 Pins (http://www.molex.com/pdm_docs/sd/559350530_sd.pdf), generated with kicad-footprint-generator Harting har-flexicon series connector, BM06B-SRSS-TB (http://www.jst-mfg.com/product/pdf/eng/eSH.pdf), generated with kicad-footprint-generator Fuse SMD 1210 (3225 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: http://www.tortai-tech.com/upload/download/2011102023233369053.pdf), generated with kicad-footprint-generator JST PUD series connector, LY20-12P-DT1, 6 Circuits (http://www.jae.com/z-en/pdf_download_exec.cfm?param=SJ038187.pdf), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55932-0830, 8 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 JST XH series connector, S13B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator Hirose DF63 through hole, DF11-28DP-2DSA, 14 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 Hirose FH12.

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