{ "version": 2, "name": "Grub Rack", "board": { "rows": 18, "cols": 36, "kind": "strip" }, "cuts": [ "2,25", "3,25", "4,6", "4,20", "5,6", "5,20", "6,6", "6,20", "7,6", "7,20", "8,6", "8,20", "9,6", "9,20", "10,6", "10,20", "11,10", "11,20", "12,10", "12,20", "12,27", "13,10", "13,20", "13,27", "14,10", "14,20", "14,27", "15,20", "15,27", "17,20", "17,23" ], "parts": [ { "id": "gdd01lk", "kind": "link", "ref": "J1", "value": "", "pins": [ [ 0, 10 ], [ 4, 10 ] ] }, { "id": "gdd02lk", "kind": "link", "ref": "J2", "value": "", "pins": [ [ 1, 1 ], [ 10, 1 ] ] }, { "id": "gdd03pt", "kind": "cap", "ref": "C1", "value": "100n", "pins": [ [ 0, 12 ], [ 1, 12 ] ], "device": "ceramic disc" }, { "id": "gdd05pt", "kind": "res", "ref": "R1", "value": "1M", "pins": [ [ 6, 12 ], [ 11, 12 ] ], "device": "fixed" }, { "id": "gdd06pt", "kind": "res", "ref": "R2", "value": "470k", "pins": [ [ 7, 13 ], [ 12, 13 ] ], "device": "fixed" }, { "id": "gdd07pt", "kind": "res", "ref": "R3", "value": "220k", "pins": [ [ 9, 14 ], [ 13, 14 ] ], "device": "fixed" }, { "id": "gdd08pt", "kind": "res", "ref": "R4", "value": "100k", "pins": [ [ 9, 0 ], [ 14, 0 ] ], "device": "fixed" }, { "id": "gdd09pt", "kind": "res", "ref": "R5", "value": "47k", "pins": [ [ 8, 2 ], [ 13, 2 ] ], "device": "fixed" }, { "id": "gdd10pt", "kind": "res", "ref": "R6", "value": "22k", "pins": [ [ 7, 3 ], [ 12, 3 ] ], "device": "fixed" }, { "id": "gdd11pt", "kind": "res", "ref": "R7", "value": "10k", "pins": [ [ 6, 4 ], [ 11, 4 ] ], "device": "fixed" }, { "id": "gdd12pt", "kind": "res", "ref": "R8", "value": "100k", "pins": [ [ 4, 2 ], [ 1, 2 ] ], "device": "fixed" }, { "id": "gdd13pt", "kind": "res", "ref": "R9", "value": "100k", "pins": [ [ 5, 3 ], [ 1, 3 ] ], "device": "fixed" }, { "id": "rk001", "kind": "link", "ref": "J3", "pins": [ [ 4, 4 ], [ 3, 4 ] ] }, { "kind": "res", "value": "100k", "device": "fixed", "mount": "vertical", "id": "rk002", "ref": "R11", "pins": [ [ 3, 24 ], [ 2, 24 ] ] }, { "kind": "diode", "value": "1N5817", "polarized": true, "device": "schottky", "mount": "vertical", "id": "rk003", "ref": "D1", "pins": [ [ 6, 35 ], [ 5, 35 ] ] }, { "kind": "diode", "value": "1N5817", "polarized": true, "device": "schottky", "mount": "vertical", "id": "rk004", "ref": "D2", "pins": [ [ 11, 35 ], [ 10, 35 ] ] }, { "id": "rk005", "kind": "link", "ref": "J4", "pins": [ [ 9, 21 ], [ 1, 21 ] ] }, { "id": "rk006", "kind": "link", "ref": "J5", "pins": [ [ 7, 33 ], [ 9, 33 ] ] }, { "id": "rk007", "kind": "link", "ref": "J6", "pins": [ [ 8, 35 ], [ 9, 35 ] ] }, { "kind": "ecap", "value": "10u", "polarized": true, "id": "rk008", "ref": "C3", "pins": [ [ 5, 25 ], [ 7, 25 ] ] }, { "kind": "ecap", "value": "10u", "polarized": true, "id": "rk009", "ref": "C4", "pins": [ [ 11, 25 ], [ 9, 25 ] ] }, { "id": "rk010", "kind": "reg", "ref": "U1", "value": "", "device": "78L05", "pins": [ [ 0, 29 ], [ 1, 29 ], [ 2, 29 ] ] }, { "id": "rk011", "kind": "link", "ref": "J7", "pins": [ [ 5, 31 ], [ 2, 31 ] ] }, { "kind": "cap", "value": "100n", "device": "ceramic disc", "id": "rk012", "ref": "C5", "pins": [ [ 2, 33 ], [ 1, 33 ] ] }, { "kind": "ecap", "value": "10u", "polarized": true, "id": "rk013", "ref": "C6", "pins": [ [ 0, 22 ], [ 1, 22 ] ] }, { "kind": "cap", "value": "100n", "device": "ceramic disc", "id": "rk014", "ref": "C7", "pins": [ [ 0, 26 ], [ 1, 26 ] ] }, { "id": "rk015", "kind": "link", "ref": "J8", "pins": [ [ 5, 30 ], [ 12, 30 ] ] }, { "id": "rk016", "kind": "link", "ref": "J9", "pins": [ [ 11, 22 ], [ 15, 22 ] ] }, { "id": "rk017", "kind": "link", "ref": "J10", "pins": [ [ 14, 23 ], [ 9, 23 ] ] }, { "id": "rk018", "kind": "link", "ref": "J11", "pins": [ [ 13, 21 ], [ 17, 21 ] ] }, { "kind": "res", "value": "47k", "device": "fixed", "id": "rk019", "ref": "R12", "pins": [ [ 17, 22 ], [ 17, 25 ] ] }, { "kind": "ecap", "value": "1u", "polarized": true, "id": "rk020", "ref": "C8", "pins": [ [ 16, 26 ], [ 17, 26 ] ] }, { "kind": "res", "value": "100k", "device": "fixed", "mount": "vertical", "id": "rk021", "ref": "R13", "pins": [ [ 13, 25 ], [ 12, 25 ] ] }, { "id": "rk022", "kind": "link", "ref": "J12", "pins": [ [ 12, 24 ], [ 4, 24 ] ] }, { "kind": "res", "value": "1k", "device": "fixed", "mount": "vertical", "id": "rk023", "ref": "R14", "pins": [ [ 4, 26 ], [ 3, 26 ] ] }, { "id": "rk024", "kind": "link", "ref": "J13", "pins": [ [ 13, 31 ], [ 14, 31 ] ] }, { "id": "rk025", "kind": "link", "ref": "J14", "pins": [ [ 15, 34 ], [ 9, 34 ] ] } ], "ics": [ { "id": "gdic1", "ref": "IC1", "part": "CD4024", "pins": 14, "pin1": [ 4, 5 ], "span": 3, "autoCuts": [ "4,6", "5,6", "6,6", "7,6", "8,6", "9,6", "10,6" ] }, { "id": "rkic2", "ref": "IC2", "part": "TL072", "pins": 8, "pin1": [ 12, 26 ], "span": 3, "autoCuts": [ "12,27", "13,27", "14,27", "15,27" ] } ], "pads": [ { "id": "rkp01", "label": "V+", "at": [ 0, 18 ], "to": "the +5 rail, off the 78L05 - a test point; nothing leaves the board here" }, { "id": "rkp02", "label": "VOL_G", "at": [ 1, 8 ], "to": "level pot, bottom lug (lug 1) - ground" }, { "id": "rkp03", "label": "GND", "at": [ 1, 18 ], "to": "ground - the rack's, through the header" }, { "id": "rkp04", "label": "CLK_IN", "at": [ 4, 0 ], "to": "clock in - CD4046 pin 4, a 40106 voice, or any 0-to-V+ square. Share ground with the source" }, { "id": "rkp05", "label": "MR_PAD", "at": [ 5, 0 ], "to": "reset - leave open for clean octaves, or jumper any SWn_A here for odd division and looping patterns" }, { "id": "rkp06", "label": "SW7_A", "at": [ 11, 8 ], "to": "toggle 7 (Q7, 7 octaves down) - other lug to the switch common bus" }, { "id": "rkp07", "label": "SW1_A", "at": [ 11, 16 ], "to": "toggle 1 (Q1, 1 octave down)" }, { "id": "rkp08", "label": "SW6_A", "at": [ 12, 8 ], "to": "toggle 6 (Q6, 6 octaves down)" }, { "id": "rkp09", "label": "SW2_A", "at": [ 12, 16 ], "to": "toggle 2 (Q2, 2 octaves down)" }, { "id": "rkp10", "label": "SW5_A", "at": [ 13, 8 ], "to": "toggle 5 (Q5, 5 octaves down)" }, { "id": "rkp11", "label": "SW3_A", "at": [ 13, 16 ], "to": "toggle 3 (Q3, 3 octaves down)" }, { "id": "rkp12", "label": "SW4_A", "at": [ 14, 8 ], "to": "toggle 4 (Q4, 4 octaves down)" }, { "id": "rkp13", "label": "BUS", "at": [ 15, 8 ], "to": "the switch common bus - daisy-chain all seven toggles and bring one wire back here" }, { "id": "rkp14", "label": "VOL_T", "at": [ 15, 10 ], "to": "level pot, top lug (lug 3) - the same node as BUS" }, { "id": "rkp15", "label": "VOL_W", "at": [ 16, 10 ], "to": "level pot wiper - into the op-amp through C8" }, { "id": "rkp16", "label": "CLK", "at": [ 2, 22 ], "to": "clock jack tip - a rack clock, gate or square; through R11 to the chip's clock" }, { "id": "rkp17", "label": "H1", "at": [ 10, 31 ], "to": "power header pin 1: -12 V. The cable's RED STRIPE is this end" }, { "id": "rkp18", "label": "H2", "at": [ 10, 32 ], "to": "power header pin 2: -12 V. The cable's RED STRIPE is this end" }, { "id": "rkp19", "label": "H3", "at": [ 9, 31 ], "to": "power header pin 3: ground" }, { "id": "rkp20", "label": "H4", "at": [ 9, 32 ], "to": "power header pin 4: ground" }, { "id": "rkp21", "label": "H5", "at": [ 8, 31 ], "to": "power header pin 5: ground" }, { "id": "rkp22", "label": "H6", "at": [ 8, 32 ], "to": "power header pin 6: ground" }, { "id": "rkp23", "label": "H7", "at": [ 7, 31 ], "to": "power header pin 7: ground" }, { "id": "rkp24", "label": "H8", "at": [ 7, 32 ], "to": "power header pin 8: ground" }, { "id": "rkp25", "label": "H9", "at": [ 6, 31 ], "to": "power header pin 9: +12 V" }, { "id": "rkp26", "label": "H10", "at": [ 6, 32 ], "to": "power header pin 10: +12 V" }, { "id": "rkp27", "label": "OUT", "at": [ 3, 28 ], "to": "output jack tip - the divider, about +/-5 V" }, { "id": "rkp28", "label": "OUT_S", "at": [ 1, 35 ], "to": "output jack sleeve, and the clock jack's sleeve" } ], "netlist": "# Grub Rack - written from the board\n# 18 strips of 36 holes, 37 parts, 2 chips, 31 cuts\n#\n# Rows 0-17, columns 0-19 are the Grub Divider hole for hole; its nets keep\n# their names. J3 puts the clock node on strip 3 for the 100k from the CLK jack.\n# Rack block on the right: 2x5 power header (H1-H10, red stripe at H1/H2 on\n# strip 10), a 1N5817 on each rail, a 78L05 making V+ from +12, and a TL072\n# whose inverting half takes the level pot wiper through 1u and 47k with\n# 100k feedback into OUT through 1k. The other half follows ground.\n\n-12_RAW: @H1 @H2 D2.B\n-12: D2.A C4.A IC2.4 J9.A J9.B\n+12_RAW: @H9 @H10 D1.A\n+12: D1.B C3.A U1.I J7.A J7.B C5.A IC2.8 J8.A J8.B\nCLK: R11.B @CLK\nCOUPLED: R12.B C8.B\nSUM: IC2.2 J11.A J11.B R12.A R13.A\nOUT_A: IC2.1 R13.B J12.A J12.B R14.A\nOUT: R14.B @OUT\nFOLLOW: IC2.6 IC2.7 J13.A J13.B\nV+: J1.A J1.B C1.A IC1.14 @V+ U1.O C6.A C7.A\nGND: J2.A J2.B C1.B R8.B R9.B IC1.7 @VOL_G @GND @H3 @H4 @H5 @H6 @H7 @H8 J4.A J4.B J5.A J5.B J6.A J6.B C3.B C4.B U1.G C5.B C6.B C7.B IC2.3 IC2.5 J10.A J10.B @OUT_S J14.A J14.B\nCLK_IN: R8.A IC1.1 @CLK_IN J3.A J3.B R11.A\nMR_PAD: R9.A IC1.2 @MR_PAD\nIC1_13: IC1.13\nIC1_3: R7.A IC1.3\nIC1_12: R1.A IC1.12\nIC1_4: R6.A IC1.4\nIC1_11: R2.A IC1.11\nIC1_5: R5.A IC1.5\nIC1_10: IC1.10\nIC1_6: R4.A IC1.6\nIC1_9: R3.A IC1.9\nIC1_8: IC1.8\nSW7_A: R7.B @SW7_A\nSW1_A: R1.B @SW1_A\nSW6_A: R6.B @SW6_A\nSW2_A: R2.B @SW2_A\nSW5_A: R5.B @SW5_A\nSW3_A: R3.B @SW3_A\nSW4_A: R4.B @SW4_A\nBUS: @BUS @VOL_T\nVOL_W: @VOL_W C8.A\n" }