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Notes - C1: enlarge footprint; a box film cap instead of latch, https://www.neutrik.com/en/product/nc3fah-0 A Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel: mini toggle: 4mm above panel, tight but possible mini toggle: ample space above pcb micro toggle: probably too tight; could work with printed spacers mini toggle: 4mm above panel, ample thunkicons: probably too short without extra spacers, use mini toggle switch ON-ON Push button switch with two LEDs K switch normally-open pushbutton push-button D MEC 5E single pole double throw, right angle, PTS645VL58-2 LFS tactile switch https://cdn.sos.sk/productdata/80/f6/aabf7be6/5gth9358222.pdf Switch NKK G1xJP http://www.nkkswitches.com/pdf/gwillum.pdf SWITCH TOGGLE ILLUM SPDT NKK Switch, single pole normally-open tactile switch switch normally-open pushbutton push-button D MEC 5E single pole double throw | | | | Tayda | A-3588 | | | Tayda | A-159 | | Tayda | A-1138 | | R16, R18, R26 | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS) | | | Q1, Q2, Q3, Q4, Q5 | 5 | 22k | Resistor | | C7, C11 | 3 | 4.7k | Resistor | | R109, R111, R113 | 3 | 1k | Resistor | | | | | | | J3 | 1 | 10 uF | Unpolarized capacitor | | | R14, R15, R18 | 3 * https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15R0-103B1/3781301 (red B10K) and https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15O0-105A2/7314942 (orange A1M The first two groups should be the same, see datasheet: https://www.mouser.com/datasheet/2/54/PTL-777483.pdf (page 4) if we want C3 and C4 could use slightly larger spacing - C7 is a combination of speakON socket and 6.35mm (1/4in) switching stereo jack, switched, gold plated contacts, https://www.neutrik.com/en/product/nmj6hfd2-au M Series, 6.35mm (1/4in) stereo jack, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mbh-0 B Series, 5 pole female XLR receptacle, grounding: without ground / shell contact, lateral left PCB mount, https://www.neutrik.com/en/product/nc5mbh B Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, steel retention lug, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fahl1-0 A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack and switching ground contact, vertical PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 1.75u, http://matias.ca/switches/ Matias ALPS keyswitch 1.25u PCB.

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