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Maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some supporting components. ~$6 in parts, depending on exact order number), See: http://katalog.we-online.de/em/datasheet/6941xx301002.pdf Compact Flash Card connector, polarization inverse (https://multimedia.3m.com/mws/media/22424O/3mtm-cf-card-header-type-i-low-profile-surface-mount-ts0747.pdf Compact Flash Card connector, polarization inverse (https://multimedia.3m.com/mws/media/22424O/3mtm-cf-card-header-type-i-low-profile-surface-mount-ts0747.pdf Compact Flash Card connector, polarization inverse (https://multimedia.3m.com/mws/media/22424O/3mtm-cf-card-header-type-i-low-profile-surface-mount-ts0747.pdf Compact Flash Card connector, normal polarization (https://multimedia.3m.com/mws/media/22424O/3mtm-cf-card-header-type-i-low-profile-surface-mount-ts0747.pdf SD, SMD, right-angle, push-pull (https://media.digikey.com/PDF/Data%20Sheets/Hirose%20PDFs/DM3D-SF.pdf 1.10mm Pitch microSD Card Connector, Reverse Type, Outer Tail, Spring Eject Type (https://global.kyocera.com/prdct/electro/product/pdf/5638.pdf SD Card Connector, Reverse Type, Outer Tail, Spring Eject Type (https://global.kyocera.com/prdct/electro/product/pdf/5638.pdf SD card connector, top mount, SMT (http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F2041021%7FB%7Fpdf%7FEnglish%7FENG_CD_2041021_B_C_2041021_B.pdf%7F2041021-4 Micro SD, SMD, right-angle, push-pull (https://www.hirose.com/product/en/download_file/key_name/DM3AT-SF-PEJM5/category/Drawing%20(2D)/doc_file_id/44099/?file_category_id=6&item_id=06090031000&is_series= Micro SD, SMD, right-angle, push-pull (https://www.hirose.com/product/en/download_file/key_name/DM3AT-SF-PEJM5/category/Drawing%20(2D)/doc_file_id/44099/?file_category_id=6&item_id=06090031000&is_series= Micro SD, SMD, top-mount, push-push (https://www.hirose.com/product/document?clcode=CL0609-0004-8-82&productname=DM1AA-SF-PEJ(82)&series=DM1&documenttype=2DDrawing&lang=en&documentid=0000915301 Hirose FH41, FFC/FPC connector, FH12-36S-0.5SH, 36 Pins per row (https://cdn.harwin.com/pdfs/M20-781.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 48 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0144.PDF), generated with kicad-footprint-generator Resistor SMD 0402 (1005 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator JST SH series connector, 501331-0307 (http://www.molex.com/pdm_docs/sd/5013310207_sd.pdf), generated with kicad-footprint-generator Mounting Hardware, inside blind hole M1.6, height 4.5, Wuerth electronics 9775106360 (https://katalog.we-online.com/em/datasheet/9775106360.pdf), generated with kicad-footprint-generator Molex Pico-Lock series connector, 502443-1570 (http://www.molex.com/pdm_docs/sd/5024430270_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 40 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=297), generated with kicad-footprint-generator Hirose DF63 through hole, DF11-24DP-2DSA, 12 Pins (https://www.molex.com/pdm_docs/sd/009652028_sd.pdf), generated with kicad-footprint-generator JST PH series connector, B14B-XASK-1 (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for a single 1 mm² wires, reinforced insulation, conductor diameter 1.4mm, see http://www.metz-connect.com/de/system/files/productfiles/Datenblatt_310861_RT034xxHBLC_OFF-026114K.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block RND 205-00050, 7 pins, pitch 5.08mm, size 30.5x11.2mm^2, drill diamater 1.1mm, pad diameter 2.1mm, see http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F282834%7FC1%7Fpdf%7FEnglish%7FENG_CD_282834_C1.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block Metz Connect Type011_RT05504HBWC pitch 5mm size 36.5x15mm^2 drill 1.2mm pad 2.3mm terminal block RND 205-00019 pitch 5mm size 60x9.8mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00232 pitch 5.08mm size 15.2x8mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00234, 4 pins, single row Surface mounted pin header THT 1x31 2.00mm single row (https://gct.co/files/drawings/bc065.pdf), script generated Through hole angled pin header, 2x36, 2.54mm pitch, 6mm pin length, double cols (from Kicad 4.0.7), script generated Through hole straight socket strip, 1x40, 2.00mm pitch, single row style1 pin1 left Surface mounted socket strip SMD 1x11 2.54mm single row male, vertical entry Harwin LTek Connector, 7 pins, pitch 5.08mm, size 35.6x11.2mm^2, drill diamater 1.2mm, pad.

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