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Back2009,2014 Google Inc. MIT License Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors Permission is hereby granted, free of charge, to any person obtaining a copy Copyright (c) 2010-2020 Robert Kieffer and other contributors Based on a work in progress; better README to come soon. Meanwhile: **Untested hardware and software — Do not assume anything works!** This is an ADSR envelope generator synth module. Layout and panel are Kosmo format. * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use your choice of 9 mm vertical board mount | | | Tayda | A-962 | | R16, R17, R19, R20 | 4 .../PCB/precadsr_aux_Gerbers/precadsr-PTH.drl | 99 .../precadsr_aux_Gerbers/precadsr-job.gbrjob | 2 | 47k | Resistor | | S1 | 1 | AudioJack2_SwitchT | Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling) | | Tayda | A-159 | | Tayda | A-159 | | | | | | R8, R10, R12 | 3 | 1nF | Unpolarized capacitor | | | J9 | 1 | SW_SPDT | SPDT miniature toggle switch ON-ON Push button switch OFF-(ON CMOS General Purpose Timer, 555 compatible, PDIP-8 Quad operational amplifier, DIP-14