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BackThe full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file 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_R5xxxDA, SIP-12, Horizontally Mounted, pitch 2.54mm, size 20.8x6.2mm^2, drill diamater 1.2mm, pad diameter 2.6mm, see http://www.4uconnector.com/online/object/4udrawing/10704.pdf, script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00246 pitch 10.2mm size 45.7x8.3mm^2 drill 1.3mm pad 2.5mm terminal block Metz Connect Type171_RT13703HBWC pitch 7.5mm size 24.8x14mm^2 drill 1.15mm pad 3mm Terminal Block Phoenix MKDS-1,5-4-5.08 pitch 5.08mm length 24mm width 10.1mm Capacitor C, Rect series, Radial, pin pitch=15.00mm, , length*width=16.5*6mm^2, Capacitor, https://en.tdk.eu/inf/20/20/db/fc_2009/MKT_B32560_564.pdf C Rect series Radial pin pitch 14.30mm Resistor, Axial_Shunt series, Box, pin pitch=60.96mm, 11W, length*width*height=50*9*9mm^3, http://cdn-reichelt.de/documents/datenblatt/B400/5WAXIAL_9WAXIAL_11WAXIAL_17WAXIAL%23YAG.pdf Resistor Axial_Power series Box pin pitch 10.16*20.32mm^2 length 30.479999999999997mm width 15.239999999999998mm Bourns 8100 L_CommonMode_Toroid, Vertical series, Radial, pin pitch=7.50mm, , diameter*width=11*5.0mm^2, Capacitor, http://www.vishay.com/docs/28535/vy2series.pdf C Disc series Radial pin pitch 15.24mm 0.25W = 1/4W, length*diameter=6.3*2.5mm^2, http://cdn-reichelt.de/documents/datenblatt/B400/1_4W%23YAG.pdf Resistor Axial_DIN0207 series Axial Horizontal pin pitch 10.00mm length 11.5mm width 11.5mm Neosid NE-CPB-11EN Drill1.3mm Inductor, Radial series, Radial, pin pitch=37.50mm, , length*width=41.5*40mm^2, Capacitor, http://www.wima.com/EN/WIMA_MKS_4.pdf C Rect series Radial pin pitch 10.00mm single screw terminal block RND 205-00026, 5 pins, pitch 10.2mm, size 107x8.3mm^2, drill diamater 1.3mm, pad diameter.
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