{ "version": 2, "name": "Locust", "board": { "rows": 22, "cols": 40, "kind": "strip" }, "cuts": [ "0,2", "9,4", "9,7", "9,11", "9,14", "9,21", "9,24", "9,28", "9,35", "12,7", "12,10", "18,26", "21,3", "21,7", "21,19", "21,22", "21,25", "21,30", "1,15", "2,15", "3,15", "4,15", "5,15", "6,15", "7,15", "12,15", "13,15", "14,15", "15,15", "16,15", "17,15", "18,15", "19,15" ], "parts": [ { "id": "lc01loc", "kind": "link", "ref": "J1", "pins": [ [ 7, 4 ], [ 8, 4 ] ] }, { "id": "lc02loc", "kind": "link", "ref": "J2", "pins": [ [ 14, 12 ], [ 15, 12 ] ] }, { "id": "lc03loc", "kind": "link", "ref": "J3", "pins": [ [ 16, 10 ], [ 20, 10 ] ] }, { "id": "lc04loc", "kind": "link", "ref": "J4", "pins": [ [ 19, 9 ], [ 20, 9 ] ] }, { "id": "lc05loc", "kind": "link", "ref": "J5", "pins": [ [ 11, 18 ], [ 12, 18 ] ] }, { "id": "lc06loc", "kind": "link", "ref": "J6", "pins": [ [ 0, 16 ], [ 1, 16 ] ] }, { "id": "lc07loc", "kind": "link", "ref": "J7", "pins": [ [ 0, 31 ], [ 11, 31 ] ] }, { "id": "lc08loc", "kind": "link", "ref": "J8", "pins": [ [ 8, 38 ], [ 20, 38 ] ] }, { "id": "lc09loc", "kind": "res", "ref": "R1", "value": "1k", "pins": [ [ 3, 3 ], [ 9, 3 ] ], "device": "fixed" }, { "id": "lc10loc", "kind": "res", "ref": "R2", "value": "1k", "pins": [ [ 4, 10 ], [ 9, 10 ] ], "device": "fixed" }, { "id": "lc11loc", "kind": "res", "ref": "R3", "value": "1k", "pins": [ [ 5, 20 ], [ 9, 20 ] ], "device": "fixed" }, { "id": "lc12loc", "kind": "res", "ref": "R4", "value": "1k", "pins": [ [ 4, 27 ], [ 9, 27 ] ], "device": "fixed" }, { "id": "lc13loc", "kind": "res", "ref": "R5", "value": "10k", "pins": [ [ 3, 5 ], [ 9, 5 ] ], "device": "fixed" }, { "id": "lc14loc", "kind": "res", "ref": "R6", "value": "10k", "pins": [ [ 4, 12 ], [ 9, 12 ] ], "device": "fixed" }, { "id": "lc15loc", "kind": "res", "ref": "R7", "value": "10k", "pins": [ [ 5, 22 ], [ 9, 22 ] ], "device": "fixed" }, { "id": "lc16loc", "kind": "res", "ref": "R8", "value": "10k", "pins": [ [ 4, 29 ], [ 9, 29 ] ], "device": "fixed" }, { "id": "lc17loc", "kind": "res", "ref": "R9", "value": "1m", "pins": [ [ 0, 5 ], [ 2, 5 ] ], "device": "fixed" }, { "id": "lc18loc", "kind": "res", "ref": "R10", "value": "1m", "pins": [ [ 0, 9 ], [ 6, 9 ] ], "device": "fixed" }, { "id": "lc19loc", "kind": "res", "ref": "R11", "value": "1m", "pins": [ [ 0, 19 ], [ 6, 19 ] ], "device": "fixed" }, { "id": "lc20loc", "kind": "res", "ref": "R12", "value": "1m", "pins": [ [ 0, 26 ], [ 2, 26 ] ], "device": "fixed" }, { "id": "lc21loc", "kind": "res", "ref": "R13", "value": "47k", "pins": [ [ 15, 8 ], [ 12, 8 ] ], "device": "fixed" }, { "id": "lc22loc", "kind": "res", "ref": "R14", "value": "47k", "pins": [ [ 17, 19 ], [ 20, 19 ] ], "device": "fixed" }, { "id": "lc23loc", "kind": "res", "ref": "R15", "value": "100k", "pins": [ [ 21, 20 ], [ 19, 20 ] ], "device": "fixed" }, { "id": "lc24loc", "kind": "res", "ref": "R16", "value": "10k", "pins": [ [ 15, 23 ], [ 21, 23 ] ], "device": "fixed" }, { "id": "lc25loc", "kind": "res", "ref": "R17", "value": "100k", "pins": [ [ 21, 27 ], [ 18, 27 ] ], "device": "fixed" }, { "id": "lc26loc", "kind": "res", "ref": "R18", "value": "2k2", "pins": [ [ 0, 36 ], [ 9, 36 ] ], "device": "fixed" }, { "id": "lc27loc", "kind": "res", "ref": "R19", "value": "1k", "pins": [ [ 21, 2 ], [ 21, 5 ] ], "device": "fixed" }, { "id": "lc28loc", "kind": "cap", "ref": "C1", "value": "10n", "pins": [ [ 1, 1 ], [ 8, 1 ] ], "device": "ceramic disc" }, { "id": "lc29loc", "kind": "cap", "ref": "C2", "value": "100n", "pins": [ [ 5, 8 ], [ 8, 8 ] ], "device": "ceramic disc" }, { "id": "lc30loc", "kind": "cap", "ref": "C3", "value": "1n", "pins": [ [ 7, 18 ], [ 8, 18 ] ], "device": "ceramic disc", "mount": "vertical" }, { "id": "lc31loc", "kind": "cap", "ref": "C4", "value": "1u", "pins": [ [ 3, 25 ], [ 8, 25 ] ], "device": "film" }, { "id": "lc32loc", "kind": "cap", "ref": "C5", "value": "1u", "pins": [ [ 9, 6 ], [ 10, 6 ] ], "device": "film", "mount": "vertical" }, { "id": "lc33loc", "kind": "cap", "ref": "C6", "value": "1u", "pins": [ [ 9, 13 ], [ 10, 13 ] ], "device": "film", "mount": "vertical" }, { "id": "lc34loc", "kind": "cap", "ref": "C7", "value": "1u", "pins": [ [ 9, 23 ], [ 10, 23 ] ], "device": "film", "mount": "vertical" }, { "id": "lc35loc", "kind": "cap", "ref": "C8", "value": "1u", "pins": [ [ 9, 30 ], [ 10, 30 ] ], "device": "film", "mount": "vertical" }, { "id": "lc36loc", "kind": "cap", "ref": "C9", "value": "1u", "pins": [ [ 12, 9 ], [ 10, 9 ] ], "device": "film" }, { "id": "lc37loc", "kind": "cap", "ref": "C10", "value": "10n", "pins": [ [ 17, 11 ], [ 18, 11 ] ], "device": "ceramic disc", "mount": "vertical" }, { "id": "lc38loc", "kind": "cap", "ref": "C11", "value": "100n", "pins": [ [ 19, 25 ], [ 20, 25 ] ], "device": "ceramic disc", "mount": "vertical" }, { "id": "lc39loc", "kind": "cap", "ref": "C12", "value": "100n", "pins": [ [ 18, 28 ], [ 14, 28 ] ], "device": "ceramic disc" }, { "id": "lc40loc", "kind": "cap", "ref": "C13", "value": "100n", "pins": [ [ 0, 7 ], [ 8, 7 ] ], "device": "ceramic disc" }, { "id": "lc41loc", "kind": "cap", "ref": "C14", "value": "100n", "pins": [ [ 11, 13 ], [ 20, 13 ] ], "device": "ceramic disc" }, { "id": "lc42loc", "kind": "ecap", "ref": "C15", "value": "100u", "pins": [ [ 0, 11 ], [ 8, 11 ] ], "polarized": true }, { "id": "lc43loc", "kind": "ecap", "ref": "C16", "value": "10u", "pins": [ [ 10, 2 ], [ 12, 2 ] ], "polarized": true }, { "id": "lc44loc", "kind": "diode", "ref": "D1", "value": "1N5817", "pins": [ [ 0, 1 ], [ 0, 4 ] ], "polarized": true, "device": "schottky" } ], "ics": [ { "id": "lcic1loc", "ref": "IC1", "part": "CD4093", "pins": 14, "pin1": [ 1, 14 ], "span": 3, "autoCuts": [ "1,15", "2,15", "3,15", "4,15", "5,15", "6,15", "7,15" ] }, { "id": "lcic2loc", "ref": "IC2", "part": "CD4046", "pins": 16, "pin1": [ 12, 14 ], "span": 3, "autoCuts": [ "12,15", "13,15", "14,15", "15,15", "16,15", "17,15", "18,15", "19,15" ] } ], "pads": [ { "id": "lcp01", "label": "9V", "at": [ 0, 0 ], "to": "supply positive, 9 V, through the power toggle. Reaches nothing but D1", "parts": [ { "id": "SW1", "kind": "toggle", "lug": "C", "value": "SPST power" } ] }, { "id": "lcp02", "label": "V1_LUG", "at": [ 1, 0 ], "to": "voice 1 pitch pot, one outer lug - the timing node. Third lug stays empty", "parts": [ { "id": "POT1", "kind": "pot", "lug": "1", "value": "B1M" } ] }, { "id": "lcp03", "label": "V1_EN", "at": [ 2, 0 ], "to": "voice 1 enable. A toggle to GND silences it; open, the 1M runs it", "parts": [ { "id": "SW2", "kind": "toggle", "lug": "C", "value": "SPST voice 1" } ] }, { "id": "lcp04", "label": "V2_LUG", "at": [ 5, 0 ], "to": "voice 2 pitch pot, one outer lug - the timing node", "parts": [ { "id": "POT2", "kind": "pot", "lug": "1", "value": "B1M" } ] }, { "id": "lcp05", "label": "V2_EN", "at": [ 6, 0 ], "to": "voice 2 enable - the ON-OFF-ON toggle common. GND silences, centre runs, VCO gates", "parts": [ { "id": "SW3", "kind": "toggle", "lug": "C", "value": "SPDT on-off-on voice 2" } ] }, { "id": "lcp06", "label": "GND", "at": [ 8, 0 ], "to": "supply negative", "parts": [ { "id": "DC1", "kind": "dc", "lug": "-", "value": "9 V" }, { "id": "POT5", "kind": "pot", "lug": "1", "value": "B100K" }, { "id": "SW2", "kind": "toggle", "lug": "1", "value": "SPST voice 1" }, { "id": "SW3", "kind": "toggle", "lug": "1", "value": "SPDT on-off-on voice 2" }, { "id": "SW4", "kind": "toggle", "lug": "1", "value": "SPST voice 3" }, { "id": "SW5", "kind": "toggle", "lug": "1", "value": "SPST voice 4" } ] }, { "id": "lcp07", "label": "V1_WIPER", "at": [ 9, 0 ], "to": "voice 1 pitch pot wiper, through R1 to the gate output", "parts": [ { "id": "POT1", "kind": "pot", "lug": "W", "value": "B1M" } ] }, { "id": "lcp08", "label": "V2_WIPER", "at": [ 9, 8 ], "to": "voice 2 pitch pot wiper, through R2", "parts": [ { "id": "POT2", "kind": "pot", "lug": "W", "value": "B1M" } ] }, { "id": "lcp09", "label": "SIG_N", "at": [ 10, 0 ], "to": "the MIX BUS, out to the NORMAL contact of the switched IN jack", "parts": [ { "id": "JK2", "kind": "jack", "lug": "N", "value": "3.5 mm in, switched" } ] }, { "id": "lcp10", "label": "V_PLUS", "at": [ 11, 0 ], "to": "the regulated-side supply, for the dragonfly pitch pot's top lug", "parts": [ { "id": "POT5", "kind": "pot", "lug": "3", "value": "B100K" } ] }, { "id": "lcp11", "label": "VOL_T", "at": [ 12, 3 ], "to": "master volume pot lug 3, the top - the whole mix through C16", "parts": [ { "id": "POT6", "kind": "pot", "lug": "3", "value": "B100K" } ] }, { "id": "lcp12", "label": "VCO", "at": [ 15, 0 ], "to": "the VCO square, IC2 pin 4. The other throw of voice 2's toggle", "parts": [ { "id": "SW3", "kind": "toggle", "lug": "2", "value": "SPDT on-off-on voice 2" } ] }, { "id": "lcp13", "label": "MODE_2", "at": [ 19, 24 ], "to": "MODE toggle, one side - pin 9, the VCO's control voltage", "parts": [ { "id": "SW6", "kind": "toggle", "lug": "2", "value": "SPST mode" } ] }, { "id": "lcp14", "label": "GND_JACK", "at": [ 20, 0 ], "to": "volume pot lug 1, both jack sleeves and the LED cathode", "parts": [ { "id": "POT6", "kind": "pot", "lug": "1", "value": "B100K" }, { "id": "JK1", "kind": "jack", "lug": "S", "value": "3.5 mm out" }, { "id": "JK2", "kind": "jack", "lug": "S", "value": "3.5 mm in, switched" }, { "id": "LED1", "kind": "led", "lug": "K", "value": "panel" } ] }, { "id": "lcp15", "label": "VOL_W", "at": [ 21, 0 ], "to": "master volume wiper, through R19 to the output tip", "parts": [ { "id": "POT6", "kind": "pot", "lug": "W", "value": "B100K" } ] }, { "id": "lcp16", "label": "OUT_T", "at": [ 21, 6 ], "to": "output jack tip", "parts": [ { "id": "JK1", "kind": "jack", "lug": "T", "value": "3.5 mm out" } ] }, { "id": "lcp17", "label": "PITCH_W", "at": [ 21, 21 ], "to": "dragonfly pitch pot wiper, through R15 into pin 9", "parts": [ { "id": "POT5", "kind": "pot", "lug": "W", "value": "B100K" } ] }, { "id": "lcp18", "label": "MODE_1", "at": [ 21, 24 ], "to": "MODE toggle, the other side - pin 13 through R16. Closed, the loop closes", "parts": [ { "id": "SW6", "kind": "toggle", "lug": "1", "value": "SPST mode" } ] }, { "id": "lcp19", "label": "SIG_T", "at": [ 21, 26 ], "to": "back from the IN jack TIP - what the loop chases", "parts": [ { "id": "JK2", "kind": "jack", "lug": "T", "value": "3.5 mm in, switched" } ] }, { "id": "lcp20", "label": "LED_A", "at": [ 9, 37 ], "to": "LED anode, through R18 from V+. Cathode to GND_JACK", "parts": [ { "id": "LED1", "kind": "led", "lug": "A", "value": "panel" } ] }, { "id": "lcp21", "label": "V3_WIPER", "at": [ 9, 18 ], "to": "voice 3 pitch pot wiper, through R3", "parts": [ { "id": "POT3", "kind": "pot", "lug": "W", "value": "B1M" } ] }, { "id": "lcp22", "label": "V4_WIPER", "at": [ 9, 25 ], "to": "voice 4 pitch pot wiper, through R4", "parts": [ { "id": "POT4", "kind": "pot", "lug": "W", "value": "B1M" } ] }, { "id": "lcp23", "label": "V4_EN", "at": [ 2, 39 ], "to": "voice 4 enable. A toggle to GND silences it", "parts": [ { "id": "SW5", "kind": "toggle", "lug": "C", "value": "SPST voice 4" } ] }, { "id": "lcp24", "label": "V4_LUG", "at": [ 3, 39 ], "to": "voice 4 pitch pot, one outer lug - the timing node", "parts": [ { "id": "POT4", "kind": "pot", "lug": "1", "value": "B1M" } ] }, { "id": "lcp25", "label": "V3_EN", "at": [ 6, 39 ], "to": "voice 3 enable. A toggle to GND silences it", "parts": [ { "id": "SW4", "kind": "toggle", "lug": "C", "value": "SPST voice 3" } ] }, { "id": "lcp26", "label": "V3_LUG", "at": [ 7, 39 ], "to": "voice 3 pitch pot, one outer lug - the timing node", "parts": [ { "id": "POT3", "kind": "pot", "lug": "1", "value": "B1M" } ] } ], "offboard": [ "DC1.+ - SW1.1" ], "netlist": "# Locust - written from the board\n# 22 strips of 40 holes, 44 parts, 2 chips, 33 cuts\n#\n# A CD4093 running her four Cicada voices and a CD4046 running her Dragonfly,\n# on one board with one mixed output. The four voices sum onto MIX through 10k\n# each; the VCO joins the same bus through 47k, so it is about five percent of\n# what the loop hears of itself. MIX leaves at SIG_N to the normal contact of the\n# switched IN jack and returns at SIG_T to pin 14, so with nothing plugged in the\n# loop chases the Cicada and a plug points it somewhere else instead.\n# The VCO square also reaches the VCO pad, which is one throw of the voice 2 toggle.\n9V: @9V D1.A\nV+: D1.B J5.A J5.B J6.A J6.B J7.A J7.B R9.A R10.A R11.A R12.A R18.A C13.A C14.A C15.A IC1.14 IC2.16 @V_PLUS\nGND: @GND J1.A J1.B J3.A J3.B J4.A J4.B J8.A J8.B R14.B C1.B C2.B C3.B C4.B C11.B C13.B C14.B C15.B IC1.7 IC2.5 IC2.8 @GND_JACK\nV1_LUG: IC1.1 C1.A @V1_LUG\nV1_EN: IC1.2 R9.B @V1_EN\nV1_OUT: IC1.3 R1.A R5.A\nV1_WIPER: R1.B @V1_WIPER\nV1_J: R5.B C5.A\nV2_LUG: IC1.5 C2.A @V2_LUG\nV2_EN: IC1.6 R10.B @V2_EN\nV2_OUT: IC1.4 R2.A R6.A\nV2_WIPER: R2.B @V2_WIPER\nV2_J: R6.B C6.A\nV3_LUG: IC1.8 C3.A @V3_LUG\nV3_EN: IC1.9 R11.B @V3_EN\nV3_OUT: IC1.10 R3.A R7.A\nV3_WIPER: R3.B @V3_WIPER\nV3_J: R7.B C7.A\nV4_LUG: IC1.12 C4.A @V4_LUG\nV4_EN: IC1.13 R12.B @V4_EN\nV4_OUT: IC1.11 R4.A R8.A\nV4_WIPER: R4.B @V4_WIPER\nV4_J: R8.B C8.A\nMIX: C16.A C5.B C6.B C7.B C8.B C9.B @SIG_N\nBLEED_J: R13.B C9.A\nVOL_T: C16.B @VOL_T\nVOL_W: @VOL_W R19.A\nOUT_T: R19.B @OUT_T\nLED: R18.B @LED_A\nVCO_OUT: IC2.3 J2.A J2.B R13.A IC2.4 @VCO\nVCO_C1A: IC2.6 C10.A\nVCO_C1B: IC2.7 C10.B\nVCO_IN: IC2.9 R15.B C11.A @MODE_2\nPITCH_W: @PITCH_W R15.A\nVCO_R1: IC2.11 R14.A\nPC2_OUT: IC2.13 R16.A\nMODE_1: R16.B @MODE_1\nSIG_IN: IC2.14 C12.B\nSIG_J: C12.A R17.B\nSIG_T: @SIG_T R17.A\nIC2_PHASEPULSES: IC2.1\nIC2_PC1OUT: IC2.2\nIC2_ZENER: IC2.15\nIC2_DEMODOUT: IC2.10\nIC2_R2: IC2.12\n" }