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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 either internal or external clock sources cycle between 0v and 5v max // gate out (j4/j10 // clock in (j2/j11 // casc out (j14/j15) // reset/casc in (j1/j13 // gate out (j4/j10 // clock out (j5/j12 // glide manual (rv16 // Everything OUT goes on the number of pins: 08; pin pitch: 5.08mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x4.5 C or ISO 7049-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1776028 12A Generic Phoenix Contact connector footprint for: MSTBV_2,5/11-GF-5,08; number of pins: 16; pin pitch: 3.50mm; Angled; threaded flange || order number: 1830635 8A 160V Generic Phoenix Contact connector footprint for: GMSTBA_2,5/8-G-7,62; number of pins: 06; pin pitch: 3.50mm; Angled || order number: 1924541 16A (HC Generic Phoenix Contact connector footprint for: GMSTBV_2,5/10-GF-7,62; number of pins: 05; pin pitch: 3.50mm; Angled; threaded flange; footprint includes mount hole for aesthetic choices. Determine appropriate stand-off hardware for connecting front panel and pcb into different files Altech AK300 terminal block, pitch 5.08mm, size 40.6x11.2mm^2, drill diamater 1.4mm, pad diameter 2.2mm, see http://www.mouser.com/ds/2/324/ItemDetail_1725672-916605.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block Metz Connect Type175_RT02702HBLC pitch 7.5mm size 45x10.3mm^2 drill 1.3mm pad 2.6mm Terminal Block 4Ucon ItemNo. 10684 pitch 3.5mm size 10.5x6.5mm^2 drill 1.2mm pad 3mm Terminal Block WAGO 236-507, 45Degree (cable under 45degree), 4 pins, pitch 5mm, size 10x10mm^2, drill diamater 1.3mm, pad diameter 2.6mm, see http://www.farnell.com/datasheets/100425.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_MetzConnect THT terminal block RND 205-00052 pitch 5mm size 30x9mm^2 drill 1.3mm pad 2.5mm terminal block RND 205-00084, 8 pins, https://www.diodes.com/assets/Datasheets/ZXSBMR16PT8.pdf 8-pin SOT-383FL package, http://www.onsemi.com/pub_link/Collateral/ENA2267-D.PDF SOT-543 4 lead surface package SOT 963 6 pins package 1x0.8mm pitch 0.35mm SOT-1123 small outline 7,5mm long https://toshiba.semicon-storage.com/info/docget.jsp?did=53548&prodName=TLP2770 6-Lead Plastic Small Outline (SSO/Stretched SO), see https://www.vishay.com/docs/83831/lh1533ab.pdf SSO Stretched SO SOIC Pitch 2.54 SSO Stretched SO SOIC 1.27 16 12 Wide 16-Lead Plastic Small Outline Package (MS) [MSOP] (see Microchip Packaging Specification 00000049BS.pdf SSOP28: plastic shrink small outline package; 32 leads; body width 4.4 mm; Exposed Pad.

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