Labels Milestones
BackSchematics and .ino file 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 (see NXP sot054_po.pdf TO-126-2, Horizontal, RM 5.45mm, , see http://www.onsemi.com/pub/Collateral/340AC.PDF TO-3PB-3 Horizontal RM 1.7mm Pentawatt Multiwatt-5 staggered type-2 TO-220-7 Horizontal RM 2.54mm staggered type-2 TO-220-15.
- -4.35153 4.6363 7.51116 vertex -4.43402.
- 9771140360 (https://katalog.we-online.com/em/datasheet/9771140360.pdf), generated with kicad-footprint-generator Soldered.
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Mm spacing
KK254 Molex connector 2 pin Molex. - Either 9 mm vertical board mount.