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Connect through the board, cross at 90° to minimize capacitance between traces - .3mm for non-power lines, .6mm if carrying power - MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some supporting components. ~$6 in parts, depending on PCB with on-board antenna Bluetooth Dual-mode module with lots of analog drum voices; based heavily on Moritz Klein's schematic, with features added from Skull and Circuit's VCA v1.3. D952ec97f3 Go to file main drumkit/Schematics/OttosIrresistableDance/KickDrum.kicad_sch 3660 lines main synth_tools/MIXER.diy 7027 lines From 5082711a9800483ca58d4b1dffec55bdf27856b9 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Move LED resistors next to transistors to save on panel wires 2eebdf7ecf Add four more switches/buttons, move LED drivers onto.

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