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BackFile uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the bottom //another rib to balance the switches along the LEDs //outline of whole PCB cube([137.5, 97, 1], center=true); working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff col_left = thickness * 1; right_rib_x = width_mm - thickness*2; From 88bf85725f2c856b6f99f99568e61e08e1060d3b Mon Sep 17 00:00:00 2001 Subject: [PATCH] Add comments and.
- 0.525853 0.586857 vertex 2.8982 1.96295.
- From 53c90c58d81dff355f8b17948a9b73c895233eb2 Mon Sep 17.
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Value="2.25" unit="mm"/>
Clearance = ~11.675mm, top and bottom boards.