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9mm and align it precisely for repeatability Change transistor footprint to inline_wide, fix DRC ground plane on only one tl074 and support Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on SIP7, http://power.murata.com/data/power/ncl/kdc_nma.pdf Isolated 1W or 2W Single Output SM DC/DC Converters https://www.murata.com/products/productdata/8807031865374/kdc-nxe1.pdf#page=8 https://www.murata.com/products/productdata/8807031898142/kdc-nxe2.pdf#page=9 Isolated 1W or 2W Single and Dual Output, 1500VDC Isolation, 19.0x17.0x8.7mm https://www.xppower.com/Portals/0/pdfs/SF_ISU02.pdf DCDC SMD TRACO TMR-1SM DCDC-Converter TRACO TEN20 Generic Traco THD 15WIN, 15W, THT (https://www.tracopower.com/products/thd15win.pdf#page=3 traco dcdc tht 15w DCDC-Converter, TRACO, TMR 1-xxxx, Dual output, Rev. March 21.2016 DCDC-Converter TRACO TMR1-xxxx Dual_output DCDC-Converter, TRACO, TSR 1-xxxx XP_POWER IA48xxD, DIP, (https://www.xppower.com/pdfs/SF_IA.pdf), generated with kicad-footprint-generator Harting har-flexicon horizontal Harting har-flexicon series connector, DF3EA-02P-2H (https://www.hirose.com/product/document?clcode=CL0543-0332-0-51&productname=DF3EA-5P-2H(51)&series=DF3&documenttype=2DDrawing⟨=en&documentid=0001163317), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for a single 0.5 mm² wires, basic insulation, conductor diameter 2.4mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block Phoenix PT-1,5-7-5.0-H, 7 pins, pitch 10mm, size 65x8.1mm^2, drill diamater 1.3mm, pad diameter 2.6mm, see http://www.farnell.com/datasheets/2138224.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix MKDS-1,5-15-5.08 pitch 5.08mm size 40.6x10.6mm^2 drill 1.3mm pad 2.6mm Terminal Block 4Ucon ItemNo. 10692, 15 pins, pitch 5mm, size 25x10.5mm^2, drill diamater 1.3mm, pad diameter 2.6mm, see http://www.metz-connect.com/ru/system/files/productfiles/Data_sheet_310941_RT035xxHBLU_OFF-022742T.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00015 pitch 5mm size 45x8.1mm^2 drill 1.1mm pad 2.1mm terminal block Metz Connect Type205_RT04506UBLC 45Degree pitch 5mm size 11.5x15mm^2 drill 1.2mm pad 2.3mm terminal block Metz Connect Type055_RT01504HDWU, 4 pins, pitch 7.5mm, size 15x9mm^2, drill diamater 1.3mm, 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_Phoenix THT Terminal Block Phoenix MKDS-1,5-4 pitch 5mm size 12.3x14mm^2 drill 1.15mm pad 3mm Terminal Block Phoenix PT-1,5-7-3.5-H pitch 3.5mm size 36x8.3mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00048 pitch 5mm size 50x9mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00306, 10 pins, pitch 5mm, size 82.3x14mm^2, drill diamater 1.2mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00078_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix MKDS-1,5-8 pitch 5mm Varistor, diameter 7mm, width 4.2mm, pitch 5mm size 66.5x15mm^2 drill 1.2mm pad 3mm single screw terminal block Metz Connect Type171_RT13705HBWC, 5 pins, pitch 10mm, size 22.3x14mm^2, drill diamater 1.3mm, pad.

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