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Https://hkadesign.org.uk/monotronkb.html for yet another version Alternative: CV from something else VCF MK's Diode Ladder VCF Kassutronic's KS-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 front Don't put R8 so close to R26 -- D36/R47 too close From 812d609d12a788e600a582b2b6e7494f6d2b0728 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Add a front-panel PCB Subject: [PATCH 04/18] adds front panel candidates v1 and v2

Added schmancy pcb for v2 front panel 24ca7abc85681936397a2802c8155420fcaf679c updated C14 footprint, traces, groundplane 2cbdb94ba9 updated C5 footprint & tracing; schematic annotation.

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