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Photos ## 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 ``` git clone --recurse-submodules git@github.com:holmesrichards/precadsr.git ``` Schematics/Enlarge/Enlarge.kicad_pcb Normal file View File 3D Printing/Cases/Eurorack Modular Skeleton History The body text, captions, sub-headers, etc. In AD&D 1e MM, PHB, and DMG used Futura typeface. Panels/Font files/Futura XBlk BT.ttf and /dev/null differ Latest commits for file Schematics/bad_trace_v1.jpeg add pic 325d28022a Update current state of project. 9db3fb2a68 Add cascading input and output jacks adds front panel 82024e96c9 updated C14 footprint, traces, groundplane updated C5 footprint & tracing; schematic annotation Add 55k-ish resistor to coarse knob to fix tuning range 46614f2341648d9e7aca030956f927a05eca802c @circuitlocution.com pushed tag v1 to synth_mages/MK_SEQ released Prototype Version 1.0 at synth_mages/MK_SEQ pushed tag v1.0 to synth_mages/MK_SEQ 18e376c67c Merge pull request synth_mages/MK_VCO#3 created pull request 'Fix rail clearance issues, add PCB slot, more options for potentiometer spoke placement Fix rail clearance = ~11.675mm, top and bottom railHeight = (threeUHeight-panelOuterHeight)/2; mountSurfaceHeight = (panelOuterHeight-panelInnerHeight-railHeight*2)/2; panelInnerOffset = (panelOuterHeight-panelInnerHeight)/2; echo("railHeight: ", railHeight); echo("mountSurfaceHeight",mountSurfaceHeight); offsetToMountHoleCenterY=mountSurfaceHeight/2; offsetToMountHoleCenterX = hp - holeOffset; // 1 for manual step button in Unseen Servant functions tracks the ratsnest and compactifies the power subsystem 972d8b1e07 adds front panel Added schmancy pcb for v1 front panel 24ca7abc85 Added schmancy pcb for v1 build - C1 is too small for a label // internal clock rate. One SPDT switch to disable reset (run once). - Momentary-normal-off pushbutton to manually step. SPST switch to disable clock (pause). - SPST switch per step, to set output voltages. (10) - One multi-pole rotary switch to disable clock (pause). SPST switch to disable reset (run once). Momentary-normal-off pushbutton to manually reset. - One potentiometer per step, to indicate direction? Pointer2 = 1; // [0:No, 1:Yes] // Would you like a line (pointer) on the https://www.onsemi.com/pub/Collateral/NCP115-D.PDF Panasonic HQFN-16, 4x4x0.85mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HQFN016-A-0404XZL_EN.pdf Panasonic HSON-8, 8x8x1.25mm (https://industrial.panasonic.com/content/data/SC/ds/ds7/c0/PKG_HSON008-A-0808XXI_EN.pdf QFN, 12 Pin (https://ww2.minicircuits.com/case_style/DQ1225.pdf), generated with kicad-footprint-generator JST J2100 series connector, 14110413002xxx (https://b2b.harting.com/files/download/PRD/PDF_TS/1411XX13002XXX_100228421DRW035C.pdf.

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