Labels Milestones
BackLadder VCF 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 https://www.analog.com/media/en/technical-documentation/data-sheets/199399fc.pdf TO-92 2-pin leads in-line, narrow, oval pads, drill 0.75mm (https://www.diodes.com/assets/Package-Files/TO92S%20(Type%20B).pdf TO-92S_Wide package, drill 0.75mm (see NXP SSOP-TSSOP-VSO-REFLOW.pdf and sot361-1_po.pdf TSSOP, 28 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0140.PDF (T2055-5)), generated with kicad-footprint-generator Molex CLIK-Mate series connector, SM08B-ZESS-TB (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Molex Nano-Fit Power Connectors, 105314-xx04, 2 Pins per row (http://www.molex.com/pdm_docs/sd/530480210_sd.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 2 times 0.75 mm² wire, basic insulation, conductor diameter 1.25mm, outer diameter 4.4mm, size source Multi-Contact FLEXI-E 1.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 64 Pin (https://www.silabs.com/documents/public/data-sheets/cp2108-datasheet.pdf), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55932-1430, 14 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0834-6-81&productname=DF12E(3.0)-50DP-0.5V(81)&series=DF12&documenttype=2DDrawing⟨=en&documentid=0000992393), generated with kicad-footprint-generator ipc_gullwing_generator.py TSOP-I, 56 Pin (https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf#page=634), generated with kicad-footprint-generator Mounting Hardware, inside through hole M3, height 9, Wuerth electronics 97730606332 (https://katalog.we-online.com/em/datasheet/97730606332.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TQFP, 48.
- Pin (http://www.ti.com/lit/ds/symlink/lmr14030.pdf#page=28, http://www.ti.com/lit/ml/msoi002j/msoi002j.pdf), generated with kicad-footprint-generator Molex CLIK-Mate.
- Diameter*width=7.5*5.0mm^2, Capacitor, http://www.vishay.com/docs/28535/vy2series.pdf C Disc series Radial.