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BackUnit is ~$8.50 - $10 in parts, mostly down to PCB edge 8.2mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector, solder-cups edge-mounted, female, x-pin-pitch 2.77mm, distance of mounting holes 47.1mm, distance of mounting holes - these gaps reduce heat conduction during soldering - ground plane Updates from real TL0x4s From 40588ba725f2f6c7240cc5d95c2a8af539e27e15 Mon Sep 17 00:00:00 2001 .../Panels/MAGIC MOUTH.png | Bin 0 -> 70804 bytes README.md | 3 | 100R | Resistor | | J8 | 1 | 2_pin_Molex_header | 2 pin Molex connector 2.54 mm spacing | | S3 | 1 | TL074 | Quad operational amplifier, DIP-14