Labels Milestones
BackKS-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 the lower 5 mm at first and soldered later.
- 55932-1110, with PCB cutout, light-direction.
- Back is probably the most common.
- 2.705225e-15 -2.187750e-15 -1.000000e+00 facet.
- 2.286mm SIPAK, Vertical, RM 2.54mm, see https://www.diodes.com/assets/Package-Files/TO126.pdf.