{
 "version": 2,
 "name": "CMOS Ladder Filter",
 "board": {
  "rows": 10,
  "cols": 32,
  "kind": "strip"
 },
 "cuts": [
  "0,29",
  "1,4",
  "1,12",
  "1,17",
  "2,4",
  "2,10",
  "3,10",
  "3,21",
  "4,10",
  "5,10",
  "6,10",
  "8,10",
  "9,27"
 ],
 "parts": [
  {
   "id": "q001",
   "kind": "link",
   "ref": "J1",
   "value": "",
   "pins": [
    [
     1,
     23
    ],
    [
     9,
     23
    ]
   ]
  },
  {
   "id": "q002",
   "kind": "link",
   "ref": "J2",
   "value": "",
   "pins": [
    [
     3,
     1
    ],
    [
     4,
     1
    ]
   ]
  },
  {
   "id": "q003",
   "kind": "link",
   "ref": "J3",
   "value": "",
   "pins": [
    [
     4,
     2
    ],
    [
     5,
     2
    ]
   ]
  },
  {
   "id": "q004",
   "kind": "link",
   "ref": "J4",
   "value": "",
   "pins": [
    [
     5,
     1
    ],
    [
     6,
     1
    ]
   ]
  },
  {
   "id": "q005",
   "kind": "link",
   "ref": "J5",
   "value": "",
   "pins": [
    [
     8,
     2
    ],
    [
     9,
     2
    ]
   ]
  },
  {
   "id": "q006",
   "kind": "link",
   "ref": "J6",
   "value": "",
   "pins": [
    [
     3,
     14
    ],
    [
     4,
     14
    ]
   ]
  },
  {
   "id": "q007",
   "kind": "link",
   "ref": "J7",
   "value": "",
   "pins": [
    [
     4,
     16
    ],
    [
     6,
     16
    ]
   ]
  },
  {
   "id": "q008",
   "kind": "link",
   "ref": "J8",
   "value": "",
   "pins": [
    [
     5,
     15
    ],
    [
     7,
     15
    ]
   ]
  },
  {
   "id": "q009",
   "kind": "link",
   "ref": "J9",
   "value": "",
   "pins": [
    [
     7,
     14
    ],
    [
     8,
     14
    ]
   ]
  },
  {
   "id": "q010",
   "kind": "diode",
   "ref": "D1",
   "value": "1N5817",
   "pins": [
    [
     0,
     30
    ],
    [
     0,
     26
    ]
   ],
   "polarized": true,
   "device": "DO-41"
  },
  {
   "id": "q011",
   "kind": "res",
   "ref": "R1",
   "value": "22k",
   "pins": [
    [
     0,
     0
    ],
    [
     1,
     3
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "q012",
   "kind": "res",
   "ref": "R2",
   "value": "1k",
   "pins": [
    [
     1,
     10
    ],
    [
     1,
     14
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "q013",
   "kind": "trans",
   "ref": "Q1",
   "value": "2N3904",
   "pins": [
    [
     2,
     15
    ],
    [
     1,
     15
    ],
    [
     0,
     15
    ]
   ],
   "device": "NPN"
  },
  {
   "id": "q014",
   "kind": "ecap",
   "ref": "C4",
   "value": "10u",
   "pins": [
    [
     2,
     18
    ],
    [
     1,
     18
    ]
   ],
   "polarized": true
  },
  {
   "id": "q015",
   "kind": "cap",
   "ref": "C5",
   "value": "100n",
   "pins": [
    [
     0,
     24
    ],
    [
     1,
     24
    ]
   ],
   "device": "ceramic MLCC"
  },
  {
   "id": "q016",
   "kind": "ecap",
   "ref": "C6",
   "value": "100u",
   "pins": [
    [
     0,
     21
    ],
    [
     1,
     21
    ]
   ],
   "polarized": true
  },
  {
   "id": "q017",
   "kind": "cap",
   "ref": "C7",
   "value": "100n",
   "pins": [
    [
     2,
     3
    ],
    [
     2,
     5
    ]
   ],
   "device": "ceramic MLCC"
  },
  {
   "id": "q018",
   "kind": "res",
   "ref": "R3",
   "value": "1M",
   "pins": [
    [
     2,
     6
    ],
    [
     5,
     6
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "q019",
   "kind": "cap",
   "ref": "C1",
   "value": "47n",
   "pins": [
    [
     6,
     4
    ],
    [
     8,
     4
    ]
   ],
   "device": "ceramic MLCC"
  },
  {
   "id": "q020",
   "kind": "cap",
   "ref": "C2",
   "value": "47n",
   "pins": [
    [
     8,
     17
    ],
    [
     9,
     17
    ]
   ],
   "device": "ceramic MLCC"
  },
  {
   "id": "q021",
   "kind": "cap",
   "ref": "C3",
   "value": "47n",
   "pins": [
    [
     6,
     19
    ],
    [
     9,
     19
    ]
   ],
   "device": "ceramic MLCC"
  },
  {
   "id": "q022",
   "kind": "ecap",
   "ref": "C8",
   "value": "1u",
   "pins": [
    [
     3,
     20
    ],
    [
     3,
     22
    ]
   ],
   "polarized": true
  },
  {
   "id": "q023",
   "kind": "res",
   "ref": "R4",
   "value": "100k",
   "pins": [
    [
     3,
     25
    ],
    [
     1,
     22
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "q024",
   "kind": "res",
   "ref": "R5",
   "value": "68k",
   "pins": [
    [
     9,
     26
    ],
    [
     9,
     29
    ]
   ],
   "device": "fixed"
  }
 ],
 "ics": [
  {
   "id": "ic1",
   "ref": "U1",
   "part": "CD4069",
   "pins": 14,
   "pin1": [
    2,
    9
   ],
   "span": 3
  }
 ],
 "pads": [
  {
   "id": "pd01",
   "label": "+9V",
   "at": [
    0,
    31
   ],
   "to": "DC jack +, through the power switch if you fit one (9V, center-negative pedal supply)",
   "parts": [
    {
     "id": "SW1",
     "kind": "toggle",
     "lug": "C",
     "value": "SPST",
     "role": "power"
    }
   ]
  },
  {
   "id": "pd02",
   "label": "TOP",
   "at": [
    1,
    1
   ],
   "to": "cutoff pot lug 3",
   "parts": [
    {
     "id": "POT1",
     "kind": "pot",
     "lug": "3",
     "value": "B100K",
     "role": "cutoff"
    }
   ]
  },
  {
   "id": "pd03",
   "label": "CUT",
   "at": [
    1,
    6
   ],
   "to": "cutoff pot wiper",
   "parts": [
    {
     "id": "POT1",
     "kind": "pot",
     "lug": "W",
     "value": "B100K",
     "role": "cutoff"
    }
   ]
  },
  {
   "id": "pd04",
   "label": "IN",
   "at": [
    2,
    0
   ],
   "to": "input jack tip, through your bypass switch",
   "parts": [
    {
     "id": "JK1",
     "kind": "jack",
     "lug": "T",
     "value": "1/4 in, in"
    }
   ]
  },
  {
   "id": "pd05",
   "label": "OUT",
   "at": [
    3,
    27
   ],
   "to": "level pot lug 3",
   "parts": [
    {
     "id": "POT2",
     "kind": "pot",
     "lug": "3",
     "value": "A100K",
     "role": "level"
    }
   ]
  },
  {
   "id": "pd06",
   "label": "GND",
   "at": [
    9,
    25
   ],
   "to": "DC jack -",
   "parts": [
    {
     "id": "DC1",
     "kind": "dc",
     "lug": "-",
     "value": "9 V"
    }
   ]
  },
  {
   "id": "pd07",
   "label": "GND2",
   "at": [
    9,
    21
   ],
   "to": "level pot lug 1 and both jack sleeves",
   "parts": [
    {
     "id": "POT2",
     "kind": "pot",
     "lug": "1",
     "value": "A100K",
     "role": "level"
    },
    {
     "id": "JK1",
     "kind": "jack",
     "lug": "S",
     "value": "1/4 in, in"
    },
    {
     "id": "JK2",
     "kind": "jack",
     "lug": "S",
     "value": "1/4 in, out"
    }
   ]
  },
  {
   "id": "pd08",
   "label": "BOT",
   "at": [
    9,
    31
   ],
   "to": "cutoff pot lug 1",
   "parts": [
    {
     "id": "POT1",
     "kind": "pot",
     "lug": "1",
     "value": "B100K",
     "role": "cutoff"
    }
   ]
  }
 ],
 "netlist": "# CMOS Ladder Filter - the intended circuit, written from the design\n#\n# Nets are listed from the schematic side. Import the board and check it against this.\nVIN:      @+9V D1.A\nTOP:      @TOP R1.B\nCUT:      @CUT R2.A\nIN:       @IN C7.A\nOUT:      @OUT C8.B R4.A\nGND:      @GND @GND2 U1.7 C4.B C5.B C6.B C1.B C2.B C3.B R4.B R5.A\nBOT:      @BOT R5.B\nX:        U1.1 C7.B R3.A\nY1:       U1.2 U1.3 U1.4 U1.5 R3.B C1.A\nY2:       U1.6 U1.8 U1.9 U1.11 C2.A\nY3:       U1.10 U1.12 U1.13 C3.A C8.A\nVDDF:     U1.14 Q1.E C4.A\nVCC:      D1.B R1.A Q1.C C5.A C6.A\nBASE:     R2.B Q1.B\n",
 "offboard": [
  "POT2.W - JK2.T",
  "DC1.+ - SW1.1"
 ]
}