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On amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules f80e4975fb checkpoint before trying to implement chaining sandwich Move LED resistors checkpoint after roughing out middle PCB Move LED resistors aa199fc6f4 Forget (and ignore) fp-info-cache file as it is machine-specific data aa199fc6f4983bb3329ebb61d633face7f24ca94 @noreply.localhost merged pull request 'More schematics' (#3) from schematic by Eeschema 5.1.10-88a1d61d58~88~ubuntu20.04.1 | Refs | Qty | Component | Description | Manufacturer | Part | Vendor | SKU | | Tayda | A-553 | | | | | | | | | | Tayda | A-826 | | J12 | 1 | AudioJack2_SwitchT | Audio Jack, 2 x switching (normalling) stereo jack (T/R/S), https://www.neutrik.com/en/product/nj3fd-v 6.35mm (1/4 in) Vertical Jack, Non-switching stereo jack and switching ground contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mbh B Series, 3 pole female XLR receptacle, grounding: without ground/shell contact, horizontal PCB mount, black chrome shell, https://www.neutrik.com/en/product/nc3fbh2-b B Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack, switched, fully threaded nose, https://www.neutrik.com/en/product/nrj6hf Slim Jacks, 6.35mm (1/4in) stereo jack, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mbv-0 B Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel: mini toggle: ample space above 11.75mm (existing 1p12t rotaries, use 11.25mm holes to PCB edge 8.2mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 9-pin D-Sub connector horizontal angled 90deg THT male pitch 2.29x1.98mm pin-PCB-offset 9.4mm 15-pin D-Sub connector, straight/vertical, THT-mount, male, pitch 2.29x2.54mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 25-pin D-Sub connector horizontal angled 90deg THT male pitch 2.29x1.98mm mounting holes 33.3mm, distance of mounting holes.

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