{
 "version": 2,
 "name": "Bug Mixer",
 "board": {
  "rows": 11,
  "cols": 22,
  "kind": "strip"
 },
 "cuts": [
  "1,2",
  "1,6",
  "2,7",
  "3,7",
  "4,7",
  "5,7",
  "7,6",
  "8,6",
  "9,6",
  "10,6"
 ],
 "parts": [
  {
   "id": "bm01mix",
   "kind": "link",
   "ref": "J1",
   "pins": [
    [
     0,
     10
    ],
    [
     2,
     10
    ]
   ]
  },
  {
   "id": "bm02mix",
   "kind": "link",
   "ref": "J2",
   "pins": [
    [
     5,
     0
    ],
    [
     6,
     0
    ]
   ]
  },
  {
   "id": "bm03mix",
   "kind": "link",
   "ref": "J3",
   "pins": [
    [
     3,
     11
    ],
    [
     4,
     11
    ]
   ]
  },
  {
   "id": "bm04mix",
   "kind": "link",
   "ref": "J4",
   "pins": [
    [
     4,
     5
    ],
    [
     3,
     13
    ]
   ]
  },
  {
   "id": "bm05mix",
   "kind": "res",
   "ref": "R1",
   "value": "100k",
   "pins": [
    [
     7,
     1
    ],
    [
     3,
     1
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "bm06mix",
   "kind": "res",
   "ref": "R2",
   "value": "100k",
   "pins": [
    [
     8,
     2
    ],
    [
     3,
     2
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "bm07mix",
   "kind": "res",
   "ref": "R3",
   "value": "100k",
   "pins": [
    [
     9,
     3
    ],
    [
     3,
     3
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "bm08mix",
   "kind": "res",
   "ref": "R4",
   "value": "100k",
   "pins": [
    [
     10,
     4
    ],
    [
     3,
     4
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "bm09mix",
   "kind": "res",
   "ref": "R5",
   "value": "22k",
   "pins": [
    [
     2,
     5
    ],
    [
     3,
     5
    ]
   ],
   "device": "fixed",
   "mount": "vertical"
  },
  {
   "id": "bm10mix",
   "kind": "res",
   "ref": "R6",
   "value": "100k",
   "pins": [
    [
     2,
     12
    ],
    [
     5,
     12
    ]
   ],
   "device": "fixed"
  },
  {
   "id": "bm11mix",
   "kind": "res",
   "ref": "R7",
   "value": "100k",
   "pins": [
    [
     5,
     16
    ],
    [
     6,
     16
    ]
   ],
   "device": "fixed",
   "mount": "vertical"
  },
  {
   "id": "bm12mix",
   "kind": "res",
   "ref": "R8",
   "value": "1k",
   "pins": [
    [
     1,
     5
    ],
    [
     1,
     7
    ]
   ],
   "device": "fixed",
   "mount": "vertical"
  },
  {
   "id": "bm13mix",
   "kind": "cap",
   "ref": "C1",
   "value": "100n",
   "pins": [
    [
     7,
     5
    ],
    [
     7,
     7
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "bm14mix",
   "kind": "cap",
   "ref": "C2",
   "value": "100n",
   "pins": [
    [
     8,
     5
    ],
    [
     8,
     7
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "bm15mix",
   "kind": "cap",
   "ref": "C3",
   "value": "100n",
   "pins": [
    [
     9,
     5
    ],
    [
     9,
     7
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "bm16mix",
   "kind": "cap",
   "ref": "C4",
   "value": "100n",
   "pins": [
    [
     10,
     5
    ],
    [
     10,
     7
    ]
   ],
   "device": "ceramic disc"
  },
  {
   "id": "bm17mix",
   "kind": "ecap",
   "ref": "C5",
   "value": "10u",
   "pins": [
    [
     5,
     18
    ],
    [
     6,
     18
    ]
   ],
   "polarized": true
  },
  {
   "id": "bm18mix",
   "kind": "ecap",
   "ref": "C6",
   "value": "10u",
   "pins": [
    [
     2,
     3
    ],
    [
     1,
     3
    ]
   ],
   "polarized": true
  },
  {
   "id": "bm19mix",
   "kind": "ecap",
   "ref": "C7",
   "value": "10u",
   "pins": [
    [
     2,
     1
    ],
    [
     1,
     1
    ]
   ],
   "polarized": true
  },
  {
   "id": "bm20mix",
   "kind": "cap",
   "ref": "C8",
   "value": "100n",
   "pins": [
    [
     2,
     14
    ],
    [
     6,
     14
    ]
   ],
   "device": "ceramic disc"
  }
 ],
 "ics": [
  {
   "id": "bmic1mix",
   "ref": "IC1",
   "part": "TL072",
   "pins": 8,
   "pin1": [
    2,
    6
   ],
   "span": 3,
   "autoCuts": [
    "2,7",
    "3,7",
    "4,7",
    "5,7"
   ]
  }
 ],
 "pads": [
  {
   "id": "bmp01",
   "label": "+9",
   "at": [
    0,
    21
   ],
   "to": "the Bug Bus, any filtered output - or a 9 V supply of its own"
  },
  {
   "id": "bmp02",
   "label": "GND",
   "at": [
    6,
    21
   ],
   "to": "the Bug Bus, that output's ground pad"
  },
  {
   "id": "bmp03",
   "label": "LVL_G",
   "at": [
    6,
    19
   ],
   "to": "lug 3 of all four level pots"
  },
  {
   "id": "bmp04",
   "label": "CH1",
   "at": [
    7,
    8
   ],
   "to": "level pot 1 wiper. Lug 1 is the Hive's OUT"
  },
  {
   "id": "bmp05",
   "label": "CH2",
   "at": [
    8,
    8
   ],
   "to": "level pot 2 wiper. Lug 1 is the Dragonfly's OUT"
  },
  {
   "id": "bmp06",
   "label": "CH3",
   "at": [
    9,
    8
   ],
   "to": "level pot 3 wiper. Lug 1 is the Cicada's OUT"
  },
  {
   "id": "bmp07",
   "label": "CH4",
   "at": [
    10,
    8
   ],
   "to": "level pot 4 wiper. Lug 1 is the Grub's OUT"
  },
  {
   "id": "bmp08",
   "label": "LINE",
   "at": [
    1,
    8
   ],
   "to": "line-out jack tip, through the 1k. Sleeve to GND"
  },
  {
   "id": "bmp09",
   "label": "AMP",
   "at": [
    1,
    0
   ],
   "to": "the Hornet's IN, through its volume pot"
  }
 ],
 "netlist": "# Bug Mixer - written from the board\n# 11 strips of 22 holes, 20 parts, 1 chip, 10 cuts\n#\n# Four level-pot wipers in at CH1-4, 100n and 100k each onto SUM, the\n# inverting input of op-amp A with 22k feedback (about a fifth of each\n# swing). Op-amp B follows the 100k/100k half-rail divider and gives A its\n# reference through J4. MIX leaves through 10u to AMP (the Hornet) and\n# through 10u and 1k to LINE. Pins 6 and 7 are tied on purpose: the follower.\n\n+9:       @+9 J1.A J1.B R6.A C8.A IC1.8\nGND:      @GND J2.A J2.B R7.B C5.B C8.B IC1.4 @LVL_G\nSUM:      IC1.2 R1.B R2.B R3.B R4.B R5.B\nMIX:      IC1.1 R5.A C6.A C7.A\nVREF_RAW: IC1.5 R6.B R7.A C5.A\nVREF:     IC1.7 J3.A J3.B J4.A J4.B IC1.3 IC1.6\nLINE_C:   C6.B R8.A\nLINE:     @LINE R8.B\nAMP:      @AMP C7.B\nCH1:      @CH1 C1.B\nCH1_C:    R1.A C1.A\nCH2:      @CH2 C2.B\nCH2_C:    R2.A C2.A\nCH3:      @CH3 C3.B\nCH3_C:    R3.A C3.A\nCH4:      @CH4 C4.B\nCH4_C:    R4.A C4.A\n"
}