Gruber Permission is hereby granted, free of charge, to any person obtaining a copy MIT License (MIT) Copyright (c) 2012-2016 The go-diff Authors. All rights reserved. Redistribution and use in source and binary forms, with or without MIT License Copyright (c) 2018 Ethan Koenig Permission is hereby granted, free of charge, to any person obtaining a copy to use, copy, modify, publish, use, compile, sell, or distribute the same size as traces - .3mm for non-power lines, .6mm if carrying power MK uses (and runs about $100 on ebay); Korg lists Trade-Up Music as a sequence of envelopes or as a cylinder with 3 positions D Switch, triple pole double throw, center OFF position K switch single-pole double-throw spdt ON-ON D Push button switch with ground pin http://www.ckswitches.com/media/1479/kmr2.pdf tactile push button, 6x6mm e.g. PHAP33xx series, height=8mm tactile push button, 6x6mm e.g. PHAP33xx series, height=4.3mm tactile push button, 6x6mm e.g. PHAP33xx series, height=7.3mm tactile push button, 6x6mm e.g. PHAP33xx series, height=8mm tactile push button, 6x6mm e.g. PHAP33xx series, height=9.5mm tactile push button, 6x6mm e.g. PHAP33xx series, height=7.3mm tactile push button, 6x6mm e.g. PHAP33xx series, height=7.3mm tactile push button, 6x6mm e.g. PTS645xx series, height=9.5mm tact sw push PVA2 DPDT momentary / push-push button, h=20.5mm C&K PVA2 https://www.ckswitches.com/media/1343/pva.pdf momentary / push-push button, h=17.5mm C&K PVA2 https://www.ckswitches.com/media/1343/pva.pdf momentary / push-push button.