{
  "version": 2,
  "name": "Simple Ring Modulator",
  "board": {
    "rows": 8,
    "cols": 24,
    "kind": "strip"
  },
  "cuts": [
    "1,2",
    "1,5",
    "3,2",
    "5,5",
    "2,19",
    "6,19"
  ],
  "parts": [
    {
      "id": "t01",
      "kind": "xfmr5",
      "ref": "T1",
      "value": "10kCT:10kCT",
      "device": "Triad TY-141P",
      "pins": [
        [
          1,
          7
        ],
        [
          3,
          7
        ],
        [
          5,
          7
        ],
        [
          1,
          3
        ],
        [
          5,
          3
        ]
      ]
    },
    {
      "id": "t02",
      "kind": "xfmr5",
      "ref": "T2",
      "value": "10kCT:10kCT",
      "device": "Triad TY-141P",
      "pins": [
        [
          2,
          17
        ],
        [
          4,
          17
        ],
        [
          6,
          17
        ],
        [
          2,
          21
        ],
        [
          6,
          21
        ]
      ]
    },
    {
      "id": "d03",
      "kind": "diode",
      "ref": "D1",
      "value": "1N4148",
      "device": "switching",
      "polarized": true,
      "pins": [
        [
          1,
          9
        ],
        [
          2,
          9
        ]
      ],
      "mount": "vertical"
    },
    {
      "id": "d04",
      "kind": "diode",
      "ref": "D2",
      "value": "1N4148",
      "device": "switching",
      "polarized": true,
      "pins": [
        [
          2,
          10
        ],
        [
          5,
          10
        ]
      ]
    },
    {
      "id": "d05",
      "kind": "diode",
      "ref": "D3",
      "value": "1N4148",
      "device": "switching",
      "polarized": true,
      "pins": [
        [
          5,
          11
        ],
        [
          6,
          11
        ]
      ],
      "mount": "vertical"
    },
    {
      "id": "d06",
      "kind": "diode",
      "ref": "D4",
      "value": "1N4148",
      "device": "switching",
      "polarized": true,
      "pins": [
        [
          6,
          12
        ],
        [
          1,
          12
        ]
      ]
    },
    {
      "id": "c07",
      "kind": "cap",
      "ref": "C1",
      "value": "2u2",
      "device": "box film",
      "pins": [
        [
          1,
          1
        ],
        [
          1,
          4
        ]
      ]
    },
    {
      "id": "c08",
      "kind": "cap",
      "ref": "C3",
      "value": "2u2",
      "device": "box film",
      "pins": [
        [
          3,
          1
        ],
        [
          3,
          4
        ]
      ]
    },
    {
      "id": "c09",
      "kind": "cap",
      "ref": "C2",
      "value": "2u2",
      "device": "box film",
      "pins": [
        [
          2,
          22
        ],
        [
          0,
          22
        ]
      ]
    },
    {
      "id": "j10",
      "kind": "link",
      "ref": "J1",
      "pins": [
        [
          5,
          1
        ],
        [
          7,
          1
        ]
      ]
    },
    {
      "id": "j11",
      "kind": "link",
      "ref": "J2",
      "pins": [
        [
          4,
          23
        ],
        [
          7,
          23
        ]
      ]
    },
    {
      "id": "j12",
      "kind": "link",
      "ref": "J3",
      "pins": [
        [
          6,
          22
        ],
        [
          7,
          22
        ]
      ]
    }
  ],
  "ics": [],
  "pads": [
    {
      "id": "p13",
      "label": "MOD_IN",
      "at": [
        1,
        0
      ],
      "to": "modulator or program input, the one you want to hear. Through C1 into T1's untapped winding"
    },
    {
      "id": "p14",
      "label": "CAR_IN",
      "at": [
        3,
        0
      ],
      "to": "carrier input. Through C3 to T1's center tap, which is the only way it reaches the ring"
    },
    {
      "id": "p15",
      "label": "OUT",
      "at": [
        0,
        23
      ],
      "to": "output, through C2 off T2's untapped winding. Passive, so quieter than the input, and it wants a high-impedance input after it"
    },
    {
      "id": "p16",
      "label": "GND",
      "at": [
        7,
        0
      ],
      "to": "ground. Both untapped windings return here, and so does T2's center tap"
    }
  ],
  "netlist": "# Simple Ring Modulator - written from the board\n# 8 strips of 24 holes, 12 parts, 0 chips, 6 cuts\n#\n# This is the circuit as the copper currently has it. Checking the board\n# against it can only pass - its use is to carry the circuit somewhere else.\n\nGND:    @GND T1.S2 T2.PCT T2.S2\n\nMOD_IN: @MOD_IN C1.A\nT1_S1:  T1.S1 C1.B\nCAR_IN: @CAR_IN C3.A\nT1_PCT: T1.PCT C3.B\nT1_P1:  T1.P1 D1.A D4.B\nT2_P1:  T2.P1 D1.B D2.A\nT1_P2:  T1.P2 D2.B D3.A\nT2_P2:  T2.P2 D3.B D4.A\nT2_S1:  T2.S1 C2.A\nOUT:    @OUT C2.B"
}