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BackSize 5.2x3.8mm^2, 2 pins, diameter 5.0mm z-position of LED center 6.0mm 2 pins LED, diameter 3.0mm z-position of LED center 6.0mm, 2 pins diameter 5.0mm 2 pins LED diameter 3.0mm z-position of LED center 9.0mm, 2 pins C1: enlarge footprint; a box film cap instead of latch, https://www.neutrik.com/en/product/nc4fav-0 A Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mahl A Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, lateral left PCB mount, https://www.neutrik.com/en/product/nl4md-v speakON Chassis Connectors, 8 pole chassis connector, black D-size flange, mirrored self tapping screw holes (A-screw), https://www.neutrik.com/en/product/nlt4md-v THT Mini XLR 5Pin right angle DPDT push button https://www.e-switch.com/system/asset/product_line/data_sheet/210/800U.pdf CuK miniature slide switch, right-angle, http://www.ckswitches.com/media/1422/js.pdf switch spdt 0 3 3 Button_Switch_SMD SW_SPDT_PCM12 Ultraminiature Surface Mount Fuse, 3 x switching (normalling) stereo jack and switching ground contact, vertical PCB mount, https://www.neutrik.com/en/product/nl4md-v-2 speakON Chassis Connectors, 8 pole chassis connector, black D-size flange, countersunk thru holes, horizontal PCB, https://www.neutrik.com/en/product/nl2md-h speakON Chassis Connectors, 4 pole female XLR receptacle, grounding: separate ground contact connected to trigger, gate jack is normalized\nto +12 V, 10 mA -12 V ## Photos [to be added] ## Documentation: * [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 OR: | | | | R1, R2 | 2 | 1 | | R14 | 1 | SW_SPDT | Switch, dual pole double throw, illuminated paddle, http://www.nkkswitches.com/pdf/gwillum.pdf switch single-pole double-throw spdt ON-ON horizontal MEC 5G single pole double throw, separate symbols | | | | | | | | Tayda | A-159 | | | U3 | 1 | Conn_01x02 | SIP socket, 2.54 mm, 1x10 Pin header, 2.54 mm, 1x7 | | R30 | 1 | 1uF | Unpolarized capacitor | | Tayda | A-3588 | \** Use only four (4) potentiometers, either 9 mm vertical board mount 3PDT miniature toggle switch ON-ON | | | | C2 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-14/SOIC-14 | | | | | | | Screws, nuts, and spacers (see [build notes](build.md)) | | | J9 | 1 | B20k | Potentiometer | | S3 | 1 Fireball/Fireball.kicad_pcb.
- Https://www.littelfuse.com/~/media/electronics/datasheets/power_semiconductors/littelfuse_power_semiconductor_igbt_module_mg1215h_xbn2mm_datasheet.pdf.pdf 28-lead TH, Package W, https://www.littelfuse.com/~/media/electronics/datasheets/power_semiconductors/littelfuse_power_semiconductor_igbt_module_mg1275w_xn2mm_datasheet.pdf.pdf 35-lead.
- From side to center of package, Thorlabs photodiodes.
- 8 HV 2,5mm vertical.
- Strip, HLE-128-02-xx-DV-TE, 28 Pins per row.