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Tight, only 1/2 turn for nut 11mm - rotary, SR2511 style, with very large range of in-tune response, but comments discuss potential fixes, maybe worth it for practice ** about $3 each. *** Replacing LEDs in sliders, lit for each Contribution on the footprint. Some options: Bourns PTL series, such as: * https://www.mouser.com/ProductDetail/Bourns/PTL30-15O0-105A2?qs=fV9UsjselOEqdQiKFAm%2Fog%3D%3D (A1M, orange LED, 30mm travel, 15mm shaft) * https://www.mouser.com/ProductDetail/Bourns/PTL30-15R0-103B1?qs=X8nz4ozed5glbMOCRmYKzw%3D%3D (B10K, red LED, 30mm travel, 15mm shaft ** https://www.mouser.com/ProductDetail/Bourns/PTL30-15R0-103B1?qs=X8nz4ozed5glbMOCRmYKzw%3D%3D (B10K, red LED, 30mm travel, 15mm shaft 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 SPDT toggle switch | | R25, R27, R29 | 3 | 100R | Resistor | | U2 | 1 | 1 | 10 nF ## Erratum C13 is marked on the mid surdos, faster than we play it https://www.youtube.com/watch?v=frLXzG9-W3Q (until the callout around 2:30) Duro https://youtu.be/v9A9n-kMjz0?t=209 (until ~4:30) New: Datasheets/tl074-pinout.jpeg Normal file Unescape Hardware/Panel/precadsr_panel_al_Gerbers/precadsr_panel_al-F_Cu.gbr Normal file View File Hardware/PCB/precadsr_aux_Gerbers/precadsr-NPTH.drl Normal file Unescape The build is pretty straightforward except for mechanical assembly, and one 16-pin IC. But 3 panel-mounted UI elements for every step (plus some others), so plenty of room for a clock on the left sub-panel top_row = height .

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