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Version; non Al panel Gerbers psnegative false) (psa4output false) (plotreference true) (plotvalue true) (plotinvisibletext false) New KiCad version; non Al panel Gerbers Panels/10_step_seq.png Normal file Unescape Hardware/PCB/precadsr/Kosmo_panel.pretty/Kosmo_Panel_Dual_Mounting_Holes.kicad_mod Normal file Unescape The build is pretty straightforward except for mechanical assembly, and one other than the SPDT toggle.* In that case the pots and switches board ("Board B") must sit a few more 'simple' Unseen Servant 1 year 1 day 1 year Overview 1 Active Pull Request 1 Pull request proposed by 1 user #7 Cumulative fixes from v1.0 (the one that went to the schematic is incorrect - the current 12-position rotary switches are actually 2p6t, which means only six different step counts are available until the replacement arrives - Wiring SW15 (once/stop) and cascade out is easier done via skywiring; 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 78sr3.3 78sr5 78sr9 78sr12 78srXX DCDC-Converter, RECOM, RECOM_R-78B-2.0, SIP-3, pitch 2.54mm, size 28.4x6.5mm^2, drill diamater 1.3mm, pad diameter 2.1mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00232_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block Phoenix MKDS-1,5-2-5.08, 2 pins, diameter 1.8mm size 1.8x2.4mm^2 z-position of LED center 1.0mm 2 pins LED diameter 5.0mm z-position of LED center 9.0mm 2 pins diameter 5.0mm Tantal Electrolytic Capacitor CP Radial series Radial pin pitch 7.62mm length 7.62mm diameter 9.53mm Diode, 5KP series, Axial, Horizontal, pin pitch=20.32mm, 2W, length*diameter=17*6mm^2, http://www.vishay.com/docs/20128/wkxwrx.pdf Resistor Axial_DIN0414 series Axial Vertical pin pitch 15.00mm length 18mm width 7mm Capacitor C, Rect series, Radial, pin pitch=5.00mm, , diameter*width=10.5*5.0mm^2, Capacitor, http://www.vishay.com/docs/28535/vy2series.pdf C Disc series Radial pin pitch 15.00mm length 16.5mm width 11.2mm Capacitor C, Rect series, Radial, pin pitch=19.80mm, , diameter=22.4mm, Vishay, TJ4, http://www.vishay.com/docs/34079/tj.pdf L_Toroid Horizontal series Radial pin pitch 14.70mm diameter 16.8mm Vishay IHB-1 Inductor, Radial series, Radial, pin pitch=23.90mm, , diameter=24.4mm, muRATA, 1400series, http://www.murata-ps.com/data/magnetics/kmp_1400.pdf Inductor Radial series Radial pin pitch 6.40mm diameter 3.175mm Diameter3-5mm Amidon-T12 L_Toroid, Horizontal series, Radial, pin pitch=4.57mm, , length*width=13.97*6.35mm^2, Pulse, A, http://datasheet.octopart.com/PE-92112KNL-Pulse-datasheet-17853305.pdf L_Toroid Vertical series Radial pin pitch 5.00mm diameter 7mm width 2.5mm Capacitor C, Disc series, Radial, pin pitch=7.50mm, , length*width=9*8.5mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 71.12mm 25W length 60mm width 14mm height 14mm Resistor, Axial_Power series.

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