{
 "version": 2,
 "name": "Haunt Detector HD-T1, board B (the voice)",
 "board": {
  "rows": 18,
  "cols": 38
 },
 "cuts": [
  "2,19",
  "3,2",
  "3,11",
  "3,21",
  "3,27",
  "4,4",
  "4,11",
  "4,23",
  "4,27",
  "5,11",
  "5,18",
  "5,27",
  "6,4",
  "6,11",
  "6,19",
  "7,11",
  "7,16",
  "7,22",
  "7,27",
  "7,31",
  "8,6",
  "8,11",
  "8,18",
  "8,27",
  "9,11",
  "9,24",
  "9,27",
  "10,16",
  "10,21",
  "10,27",
  "12,20",
  "13,11",
  "14,11",
  "14,16",
  "15,11",
  "16,11",
  "16,19",
  "17,16"
 ],
 "ics": [
  {
   "id": "ic3",
   "ref": "IC3",
   "part": "LM324",
   "pins": 14,
   "pin1": [
    3,
    10
   ],
   "span": 3,
   "autoCuts": [
    "3,11",
    "4,11",
    "5,11",
    "6,11",
    "7,11",
    "8,11",
    "9,11"
   ]
  },
  {
   "id": "ic4",
   "ref": "IC4",
   "part": "LM13700",
   "pins": 16,
   "pin1": [
    3,
    26
   ],
   "span": 3,
   "autoCuts": [
    "3,27",
    "4,27",
    "5,27",
    "7,27",
    "8,27",
    "9,27",
    "10,27"
   ]
  },
  {
   "id": "ic5",
   "ref": "IC5",
   "part": "LM386",
   "pins": 8,
   "pin1": [
    13,
    10
   ],
   "span": 3,
   "autoCuts": [
    "13,11",
    "14,11",
    "15,11",
    "16,11"
   ]
  }
 ],
 "parts": [
  {
   "id": "j1",
   "kind": "link",
   "ref": "J1",
   "value": "",
   "pins": [
    [
     3,
     18
    ],
    [
     4,
     18
    ]
   ]
  },
  {
   "id": "j2",
   "kind": "link",
   "ref": "J2",
   "value": "",
   "pins": [
    [
     6,
     17
    ],
    [
     1,
     17
    ]
   ]
  },
  {
   "id": "j3",
   "kind": "link",
   "ref": "J3",
   "value": "",
   "pins": [
    [
     7,
     21
    ],
    [
     9,
     21
    ]
   ]
  },
  {
   "id": "j4",
   "kind": "link",
   "ref": "J4",
   "value": "",
   "pins": [
    [
     8,
     22
    ],
    [
     11,
     22
    ]
   ]
  },
  {
   "id": "j5",
   "kind": "link",
   "ref": "J5",
   "value": "",
   "pins": [
    [
     8,
     9
    ],
    [
     9,
     9
    ]
   ]
  },
  {
   "id": "j6",
   "kind": "link",
   "ref": "J6",
   "value": "",
   "pins": [
    [
     9,
     6
    ],
    [
     10,
     6
    ]
   ]
  },
  {
   "id": "j7",
   "kind": "link",
   "ref": "J7",
   "value": "",
   "pins": [
    [
     8,
     4
    ],
    [
     11,
     4
    ]
   ]
  },
  {
   "id": "j8",
   "kind": "link",
   "ref": "J8",
   "value": "",
   "pins": [
    [
     6,
     8
    ],
    [
     12,
     8
    ]
   ]
  },
  {
   "id": "j9",
   "kind": "link",
   "ref": "J9",
   "value": "",
   "pins": [
    [
     3,
     30
    ],
    [
     1,
     30
    ]
   ]
  },
  {
   "id": "j10",
   "kind": "link",
   "ref": "J10",
   "value": "",
   "pins": [
    [
     5,
     30
    ],
    [
     6,
     30
    ]
   ]
  },
  {
   "id": "j11",
   "kind": "link",
   "ref": "J11",
   "value": "",
   "pins": [
    [
     9,
     31
    ],
    [
     11,
     31
    ]
   ]
  },
  {
   "id": "j12",
   "kind": "link",
   "ref": "J12",
   "value": "",
   "pins": [
    [
     3,
     36
    ],
    [
     9,
     36
    ]
   ]
  },
  {
   "id": "j13",
   "kind": "link",
   "ref": "J13",
   "value": "",
   "pins": [
    [
     12,
     14
    ],
    [
     15,
     14
    ]
   ]
  },
  {
   "id": "j14",
   "kind": "link",
   "ref": "J14",
   "value": "",
   "pins": [
    [
     14,
     9
    ],
    [
     11,
     9
    ]
   ]
  },
  {
   "id": "j15",
   "kind": "link",
   "ref": "J15",
   "value": "",
   "pins": [
    [
     16,
     8
    ],
    [
     14,
     8
    ]
   ]
  },
  {
   "id": "j16",
   "kind": "link",
   "ref": "J16",
   "value": "",
   "pins": [
    [
     14,
     18
    ],
    [
     11,
     18
    ]
   ]
  },
  {
   "id": "j17",
   "kind": "link",
   "ref": "J17",
   "value": "",
   "pins": [
    [
     17,
     23
    ],
    [
     14,
     23
    ]
   ]
  },
  {
   "id": "j18",
   "kind": "link",
   "ref": "J18",
   "value": "",
   "pins": [
    [
     7,
     25
    ],
    [
     9,
     25
    ]
   ]
  },
  {
   "id": "j19",
   "kind": "link",
   "ref": "J19",
   "value": "",
   "pins": [
    [
     0,
     22
    ],
    [
     1,
     22
    ]
   ]
  },
  {
   "id": "r18",
   "kind": "res",
   "ref": "R18",
   "value": "10k",
   "pins": [
    [
     6,
     7
    ],
    [
     7,
     7
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r19",
   "kind": "res",
   "ref": "R19",
   "value": "10k",
   "pins": [
    [
     7,
     3
    ],
    [
     8,
     3
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "c11",
   "kind": "ecap",
   "ref": "C11",
   "value": "10u",
   "pins": [
    [
     7,
     5
    ],
    [
     8,
     5
    ]
   ],
   "polarized": true
  },
  {
   "id": "r20",
   "kind": "res",
   "ref": "R20",
   "value": "10k",
   "pins": [
    [
     6,
     6
    ],
    [
     6,
     3
    ]
   ]
  },
  {
   "id": "c12",
   "kind": "cap",
   "ref": "C12",
   "value": "1u",
   "pins": [
    [
     6,
     2
    ],
    [
     5,
     2
    ]
   ],
   "device": "box film"
  },
  {
   "id": "r21",
   "kind": "res",
   "ref": "R21",
   "value": "1M",
   "pins": [
    [
     5,
     1
    ],
    [
     9,
     1
    ]
   ]
  },
  {
   "id": "r22",
   "kind": "res",
   "ref": "R22",
   "value": "1M",
   "pins": [
    [
     3,
     8
    ],
    [
     4,
     8
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "c13",
   "kind": "cap",
   "ref": "C13",
   "value": "4n7",
   "pins": [
    [
     3,
     7
    ],
    [
     4,
     7
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "r23",
   "kind": "res",
   "ref": "R23",
   "value": "1k",
   "pins": [
    [
     4,
     6
    ],
    [
     4,
     3
    ]
   ]
  },
  {
   "id": "c14",
   "kind": "ecap",
   "ref": "C14",
   "value": "220u",
   "pins": [
    [
     4,
     0
    ],
    [
     3,
     0
    ]
   ],
   "polarized": true
  },
  {
   "id": "r24",
   "kind": "res",
   "ref": "R24",
   "value": "56k",
   "pins": [
    [
     3,
     9
    ],
    [
     2,
     9
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r25",
   "kind": "res",
   "ref": "R25",
   "value": "56k",
   "pins": [
    [
     2,
     16
    ],
    [
     5,
     16
    ]
   ]
  },
  {
   "id": "c15",
   "kind": "cap",
   "ref": "C15",
   "value": "220n",
   "pins": [
    [
     2,
     15
    ],
    [
     3,
     15
    ]
   ],
   "device": "box film"
  },
  {
   "id": "c16",
   "kind": "cap",
   "ref": "C16",
   "value": "100n",
   "pins": [
    [
     5,
     14
    ],
    [
     6,
     14
    ]
   ],
   "device": "box film"
  },
  {
   "id": "r26",
   "kind": "res",
   "ref": "R26",
   "value": "10k",
   "pins": [
    [
     4,
     22
    ],
    [
     3,
     22
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r27",
   "kind": "res",
   "ref": "R27",
   "value": "2k2",
   "pins": [
    [
     3,
     23
    ],
    [
     2,
     23
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r28",
   "kind": "res",
   "ref": "R28",
   "value": "82k",
   "pins": [
    [
     9,
     15
    ],
    [
     8,
     15
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "c17",
   "kind": "cap",
   "ref": "C17",
   "value": "47n",
   "pins": [
    [
     8,
     17
    ],
    [
     8,
     19
    ]
   ],
   "device": "box film"
  },
  {
   "id": "r36",
   "kind": "res",
   "ref": "R36",
   "value": "100k",
   "pins": [
    [
     7,
     18
    ],
    [
     7,
     15
    ]
   ]
  },
  {
   "id": "r37",
   "kind": "res",
   "ref": "R37",
   "value": "100k",
   "pins": [
    [
     7,
     14
    ],
    [
     10,
     14
    ]
   ]
  },
  {
   "id": "c18",
   "kind": "cap",
   "ref": "C18",
   "value": "1u",
   "pins": [
    [
     9,
     19
    ],
    [
     10,
     19
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "r29",
   "kind": "res",
   "ref": "R29",
   "value": "47k",
   "pins": [
    [
     10,
     20
    ],
    [
     5,
     20
    ]
   ]
  },
  {
   "id": "r30",
   "kind": "res",
   "ref": "R30",
   "value": "220R",
   "pins": [
    [
     5,
     25
    ],
    [
     6,
     25
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r32",
   "kind": "res",
   "ref": "R32",
   "value": "10k",
   "pins": [
    [
     7,
     24
    ],
    [
     6,
     24
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "r33",
   "kind": "res",
   "ref": "R33",
   "value": "4k7",
   "pins": [
    [
     10,
     24
    ],
    [
     11,
     24
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "c19",
   "kind": "cap",
   "ref": "C19",
   "value": "1u",
   "pins": [
    [
     10,
     25
    ],
    [
     12,
     25
    ]
   ],
   "device": "box film"
  },
  {
   "id": "r34",
   "kind": "res",
   "ref": "R34",
   "value": "100R",
   "pins": [
    [
     7,
     33
    ],
    [
     8,
     33
    ]
   ],
   "mount": "vertical"
  },
  {
   "id": "c20",
   "kind": "ecap",
   "ref": "C20",
   "value": "100u",
   "pins": [
    [
     8,
     37
    ],
    [
     9,
     37
    ]
   ],
   "polarized": true
  },
  {
   "id": "r38",
   "kind": "res",
   "ref": "R38",
   "value": "10k",
   "pins": [
    [
     8,
     31
    ],
    [
     5,
     31
    ]
   ]
  },
  {
   "id": "r39",
   "kind": "res",
   "ref": "R39",
   "value": "10k",
   "pins": [
    [
     6,
     35
    ],
    [
     9,
     35
    ]
   ]
  },
  {
   "id": "c26",
   "kind": "ecap",
   "ref": "C26",
   "value": "10u",
   "pins": [
    [
     5,
     33
    ],
    [
     3,
     33
    ]
   ],
   "polarized": true
  },
  {
   "id": "c21",
   "kind": "ecap",
   "ref": "C21",
   "value": "10u",
   "pins": [
    [
     14,
     15
    ],
    [
     14,
     17
    ]
   ],
   "polarized": true
  },
  {
   "id": "c22",
   "kind": "ecap",
   "ref": "C22",
   "value": "220u",
   "pins": [
    [
     16,
     18
    ],
    [
     16,
     20
    ]
   ],
   "polarized": true
  },
  {
   "id": "c23",
   "kind": "cap",
   "ref": "C23",
   "value": "47n",
   "pins": [
    [
     16,
     14
    ],
    [
     17,
     14
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "r35",
   "kind": "res",
   "ref": "R35",
   "value": "10R",
   "pins": [
    [
     17,
     15
    ],
    [
     17,
     18
    ]
   ]
  },
  {
   "id": "c24",
   "kind": "ecap",
   "ref": "C24",
   "value": "220u",
   "pins": [
    [
     12,
     5
    ],
    [
     11,
     5
    ]
   ],
   "polarized": true
  },
  {
   "id": "c25",
   "kind": "cap",
   "ref": "C25",
   "value": "100n",
   "pins": [
    [
     12,
     2
    ],
    [
     11,
     2
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "vr2",
   "kind": "trim",
   "ref": "VR2",
   "device": "trimpot",
   "value": "5k",
   "pins": [
    [
     2,
     21
    ],
    [
     1,
     21
    ],
    [
     0,
     21
    ]
   ]
  }
 ],
 "pads": [
  {
   "id": "p1",
   "label": "VBAT",
   "at": [
    7,
    37
   ],
   "to": "board A, its B_VB pad"
  },
  {
   "id": "p2",
   "label": "+8V",
   "at": [
    6,
    9
   ],
   "to": "board A, its B_8V pad"
  },
  {
   "id": "p3",
   "label": "GND",
   "at": [
    11,
    0
   ],
   "to": "board A, its B_GND pad"
  },
  {
   "id": "p4",
   "label": "MIC+",
   "at": [
    6,
    0
   ],
   "to": "electret mic, its plus (the leg NOT joined to the case)"
  },
  {
   "id": "p5",
   "label": "MIC-",
   "at": [
    8,
    0
   ],
   "to": "electret mic, its minus (the leg joined to the case)"
  },
  {
   "id": "p6",
   "label": "INFRA_W",
   "at": [
    3,
    1
   ],
   "to": "INFRA pot wiper",
   "parts": [
    {
     "id": "POT3",
     "kind": "pot",
     "lug": "W",
     "value": "B100K",
     "role": "INFRA gain"
    }
   ]
  },
  {
   "id": "p7",
   "label": "INFRA_L",
   "at": [
    11,
    1
   ],
   "to": "INFRA pot lug 1",
   "parts": [
    {
     "id": "POT3",
     "kind": "pot",
     "lug": "1",
     "value": "B100K",
     "role": "INFRA gain"
    }
   ]
  },
  {
   "id": "p8",
   "label": "VOL_IN",
   "at": [
    12,
    23
   ],
   "to": "VOLUME pot lug 3",
   "parts": [
    {
     "id": "POT4",
     "kind": "pot",
     "lug": "3",
     "value": "A10K",
     "role": "volume"
    }
   ]
  },
  {
   "id": "p9",
   "label": "VOL_W",
   "at": [
    15,
    9
   ],
   "to": "VOLUME pot wiper",
   "parts": [
    {
     "id": "POT4",
     "kind": "pot",
     "lug": "W",
     "value": "A10K",
     "role": "volume"
    }
   ]
  },
  {
   "id": "p10",
   "label": "GND_VOL",
   "at": [
    14,
    7
   ],
   "to": "VOLUME pot lug 1",
   "parts": [
    {
     "id": "POT4",
     "kind": "pot",
     "lug": "1",
     "value": "A10K",
     "role": "volume"
    }
   ]
  },
  {
   "id": "p11",
   "label": "SPK+",
   "at": [
    16,
    22
   ],
   "to": "speaker plus",
   "parts": [
    {
     "id": "SPK1",
     "kind": "spk",
     "lug": "+",
     "value": "8 ohm"
    }
   ]
  },
  {
   "id": "p12",
   "label": "SPK-",
   "at": [
    17,
    21
   ],
   "to": "speaker minus",
   "parts": [
    {
     "id": "SPK1",
     "kind": "spk",
     "lug": "-",
     "value": "8 ohm"
    }
   ]
  }
 ],
 "netlist": "# Haunt Detector HD-T1, board B: the voice\n# 18 strips of 38 holes, 3 chips, all soldered straight in. UNBUILT.\n#\n# IC3 is an LM324. Its A amp gains the mic 11 to 1001 times (the INFRA pot,\n# through R23 and C14), D is a 19 Hz Sallen-Key low-pass, B buffers VREF,\n# half of +8V, and C is the tone, a Schmitt oscillator near 116 Hz.\n# The low-passed rumble pushes current through R26 into IC4 pin 1, the bias\n# input of an LM13700; VR2 (THRESH) sinks it so the tone is silent at rest.\n# IC4 passes the tone only while the rumble pushes, so it throbs once per\n# infrasound cycle. IC4 runs on the pack through R34 and C20, since it wants\n# 10V or more, with its own reference OREF from R38 and R39.\n# IC5, an LM386 at gain 20, drives the speaker from the VOLUME pot.\n# Three wires come from board A: VBAT, +8V and GND.\n\nVBAT:      @VBAT R34.A\nVBF:       R34.B C20.A R38.A IC4.11\n+8V:       @+8V R18.A R20.A IC3.4 C24.A C25.A IC5.6\nGND:       @GND @MIC- @INFRA_L @GND_VOL @SPK- R19.B C11.B C16.B C17.B IC3.11 IC4.6 IC4.10 IC4.16 R33.B C20.B R39.B C26.B VR2.W IC5.2 IC5.4 C21.B R35.B C24.B C25.B VR2.3\nVREF:      IC3.6 IC3.7 R21.B R37.B\nVDIV:      IC3.5 R18.B R19.A C11.A\nMIC:       @MIC+ R20.B C12.A\nIN:        C12.B R21.A IC3.3\nFBA:       IC3.2 R22.B C13.B R23.A\nY:         R23.B C14.A\nGSET:      C14.B @INFRA_W\nPRE:       IC3.1 R22.A C13.A R24.A\nN1:        R24.B R25.A C15.A\nN2:        R25.B C16.A IC3.12\nLP:        IC3.13 IC3.14 C15.B R26.A\nIABC:      R26.B R27.A IC4.1\nTH:        R27.B VR2.1\nTOUT:      IC3.8 R28.A R36.A C18.A\nTNEG:      IC3.9 R28.B C17.A\nTPOS:      IC3.10 R36.B R37.A\nX:         C18.B R29.A\nOIN:       R29.B R30.A IC4.3\nOREF:      R30.B R32.B R38.B R39.A C26.A IC4.4 IC4.13 IC4.14\nOTAOUT:    IC4.5 IC4.7 R32.A\nBUF:       IC4.8 R33.A C19.A\nVOL_IN:    C19.B @VOL_IN\nVOL_W:     @VOL_W IC5.3\nBYP:       IC5.7 C21.A\nAMP:       IC5.5 C22.A C23.A\nZOB:       C23.B R35.A\nSPK:       C22.B @SPK+\nNC_IC4_2:  IC4.2\nNC_IC4_9:  IC4.9\nNC_IC4_12: IC4.12\nNC_IC4_15: IC4.15\nNC_IC5_1:  IC5.1\nNC_IC5_8:  IC5.8\n"
}
