(kicad_sch (version 20211123) (generator eeschema)
  (paper "A4")
  (lib_symbols
    (symbol "Device:C_Polarized" (pin_numbers hide) (pin_names (offset 0.254)) (in_bom yes) (on_board yes)
      (property "Reference" "C" (id 0) (at 0.635 2.54 0))
      (property "Value" "C_Polarized" (id 1) (at 0.635 -2.54 0))
      (property "Footprint" "" (id 2) (at 0.9652 -3.81 0))
      (property "Datasheet" "~" (id 3) (at 0 0 0))
      (property "ki_keywords" "cap capacitor" (id 4) (at 0 0 0))
      (property "ki_description" "Polarized capacitor" (id 5) (at 0 0 0))
      (property "ki_fp_filters" "CP_*" (id 6) (at 0 0 0))
      (symbol "C_Polarized_0_1"
        (rectangle (start -2.286 0.508) (end 2.286 1.016)
          (fill (type none))
        )
        (polyline
          (pts
            (xy -1.778 2.286)
            (xy -0.762 2.286)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy -1.27 2.794)
            (xy -1.27 1.778)
          )
          (fill (type none))
        )
        (rectangle (start 2.286 -0.508) (end -2.286 -1.016)
          (fill (type outline))
        )
      )
      (symbol "C_Polarized_1_1"
        (pin passive line (at 0 3.81 270) (length 2.794)
          (name "~")
          (number "1")
        )
        (pin passive line (at 0 -3.81 90) (length 2.794)
          (name "~")
          (number "2")
        )
      )
    )
    (symbol "Device:Microphone_Condenser" (pin_names (offset 0.0254) hide) (in_bom yes) (on_board yes)
      (property "Reference" "MK" (id 0) (at -3.302 1.27 0))
      (property "Value" "Microphone_Condenser" (id 1) (at -3.302 -0.635 0))
      (property "Footprint" "" (id 2) (at 0 2.54 90))
      (property "Datasheet" "~" (id 3) (at 0 2.54 90))
      (property "ki_keywords" "capacitance condenser microphone" (id 4) (at 0 0 0))
      (property "ki_description" "Condenser microphone" (id 5) (at 0 0 0))
      (symbol "Microphone_Condenser_0_1"
        (polyline
          (pts
            (xy -2.54 2.54)
            (xy -2.54 -2.54)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 -0.762)
            (xy 0 -1.524)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 0.762)
            (xy 0 1.524)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0.254 3.81)
            (xy 0.762 3.81)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0.508 4.064)
            (xy 0.508 3.556)
          )
          (fill (type none))
        )
        (circle (center 0 0) (radius 2.54)
          (fill (type none))
        )
        (rectangle (start 1.016 -0.254) (end -1.016 -0.762)
          (fill (type outline))
        )
        (rectangle (start 1.016 0.762) (end -1.016 0.254)
          (fill (type outline))
        )
      )
      (symbol "Microphone_Condenser_1_1"
        (pin passive line (at 0 -5.08 90) (length 2.54)
          (name "-")
          (number "1")
        )
        (pin passive line (at 0 5.08 270) (length 2.54)
          (name "+")
          (number "2")
        )
      )
    )
    (symbol "Device:R" (pin_numbers hide) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "R" (id 0) (at 2.032 0 90))
      (property "Value" "R" (id 1) (at 0 0 90))
      (property "Footprint" "" (id 2) (at -1.778 0 90))
      (property "Datasheet" "~" (id 3) (at 0 0 0))
      (property "ki_keywords" "R res resistor" (id 4) (at 0 0 0))
      (property "ki_description" "Resistor" (id 5) (at 0 0 0))
      (property "ki_fp_filters" "R_*" (id 6) (at 0 0 0))
      (symbol "R_0_1"
        (rectangle (start -1.016 -2.54) (end 1.016 2.54)
          (fill (type none))
        )
      )
      (symbol "R_1_1"
        (pin passive line (at 0 3.81 270) (length 1.27)
          (name "~")
          (number "1")
        )
        (pin passive line (at 0 -3.81 90) (length 1.27)
          (name "~")
          (number "2")
        )
      )
    )
    (symbol "power:+9V" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "#PWR" (id 0) (at 0 -3.81 0))
      (property "Value" "+9V" (id 1) (at 0 3.556 0))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "" (id 3) (at 0 0 0))
      (property "ki_keywords" "global power" (id 4) (at 0 0 0))
      (property "ki_description" "Power symbol creates a global label with name \"+9V\"" (id 5) (at 0 0 0))
      (symbol "+9V_0_1"
        (polyline
          (pts
            (xy -0.762 1.27)
            (xy 0 2.54)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 0)
            (xy 0 2.54)
          )
          (fill (type none))
        )
        (polyline
          (pts
            (xy 0 2.54)
            (xy 0.762 1.27)
          )
          (fill (type none))
        )
      )
      (symbol "+9V_1_1"
        (pin power_in line (at 0 0 90) (length 0) hide
          (name "+9V")
          (number "1")
        )
      )
    )
    (symbol "power:GND" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
      (property "Reference" "#PWR" (id 0) (at 0 -6.35 0))
      (property "Value" "GND" (id 1) (at 0 -3.81 0))
      (property "Footprint" "" (id 2) (at 0 0 0))
      (property "Datasheet" "" (id 3) (at 0 0 0))
      (property "ki_keywords" "global power" (id 4) (at 0 0 0))
      (property "ki_description" "Power symbol creates a global label with name \"GND\" , ground" (id 5) (at 0 0 0))
      (symbol "GND_0_1"
        (polyline
          (pts
            (xy 0 0)
            (xy 0 -1.27)
            (xy 1.27 -1.27)
            (xy 0 -2.54)
            (xy -1.27 -1.27)
            (xy 0 -1.27)
          )
          (fill (type none))
        )
      )
      (symbol "GND_1_1"
        (pin power_in line (at 0 0 270) (length 0) hide
          (name "GND")
          (number "1")
        )
      )
    )
  )
  (junction (at 64.77 59.69) (diameter 0) (color 0 0 0 0))
  (junction (at 82.55 59.69) (diameter 0) (color 0 0 0 0))
  (junction (at 64.77 74.93) (diameter 0) (color 0 0 0 0))
  (junction (at 49.53 74.93) (diameter 0) (color 0 0 0 0))
  (junction (at 49.53 59.69) (diameter 0) (color 0 0 0 0))
  (wire (pts (xy 82.55 59.69) (xy 82.55 63.5)))
  (wire (pts (xy 82.55 74.93) (xy 82.55 71.12)))
  (wire (pts (xy 49.53 45.72) (xy 49.53 49.53)))
  (wire (pts (xy 49.53 57.15) (xy 49.53 59.69)))
  (wire (pts (xy 82.55 59.69) (xy 88.9 59.69)))
  (wire (pts (xy 64.77 74.93) (xy 82.55 74.93)))
  (wire (pts (xy 60.96 59.69) (xy 64.77 59.69)))
  (wire (pts (xy 49.53 59.69) (xy 49.53 64.77)))
  (wire (pts (xy 49.53 74.93) (xy 64.77 74.93)))
  (wire (pts (xy 64.77 59.69) (xy 64.77 63.5)))
  (wire (pts (xy 74.93 59.69) (xy 82.55 59.69)))
  (wire (pts (xy 64.77 74.93) (xy 64.77 73.66)))
  (wire (pts (xy 49.53 72.39) (xy 49.53 74.93)))
  (wire (pts (xy 49.53 59.69) (xy 53.34 59.69)))
  (wire (pts (xy 49.53 74.93) (xy 49.53 76.2)))
  (wire (pts (xy 64.77 59.69) (xy 67.31 59.69)))
  (text "Android Device" (at 87.63 58.42 0))
  (symbol (lib_id "power:+9V") (at 49.53 45.72 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "#PWR01" (id 0) (at 49.53 49.53 0))
    (property "Value" "+9V" (id 1) (at 49.53 40.64 0))
    (property "Footprint" "" (id 2) (at 49.53 45.72 0))
    (property "Datasheet" "" (id 3) (at 49.53 45.72 0))
    (pin "1")
  )
  (symbol (lib_id "Device:C_Polarized") (at 49.53 68.58 0) (unit 1)
    (in_bom yes) (on_board yes)
    (property "Reference" "C1" (id 0) (at 38.1 67.31 0))
    (property "Value" "100 µF" (id 1) (at 38.1 69.85 0))
    (property "Footprint" "" (id 2) (at 50.4952 72.39 0))
    (property "Datasheet" "~" (id 3) (at 49.53 68.58 0))
    (pin "1")
    (pin "2")
  )
  (symbol (lib_id "Device:Microphone_Condenser") (at 64.77 68.58 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "MK1" (id 0) (at 68.58 66.6114 0))
    (property "Value" "Mik" (id 1) (at 68.58 69.1514 0))
    (property "Footprint" "" (id 2) (at 64.77 66.04 90))
    (property "Datasheet" "~" (id 3) (at 64.77 66.04 90))
    (pin "1")
    (pin "2")
  )
  (symbol (lib_id "Device:R") (at 82.55 67.31 0) (unit 1)
    (in_bom yes) (on_board yes)
    (property "Reference" "R3" (id 0) (at 85.09 67.31 0))
    (property "Value" "2,2k" (id 1) (at 85.09 69.85 0))
    (property "Footprint" "" (id 2) (at 80.772 67.31 90))
    (property "Datasheet" "~" (id 3) (at 82.55 67.31 0))
    (pin "1")
    (pin "2")
  )
  (symbol (lib_id "power:GND") (at 49.53 76.2 0) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "#PWR02" (id 0) (at 49.53 82.55 0))
    (property "Value" "GND" (id 1) (at 49.53 81.28 0))
    (property "Footprint" "" (id 2) (at 49.53 76.2 0))
    (property "Datasheet" "" (id 3) (at 49.53 76.2 0))
    (pin "1")
  )
  (symbol (lib_id "Device:R") (at 57.15 59.69 90) (unit 1)
    (in_bom yes) (on_board yes)
    (property "Reference" "R2" (id 0) (at 57.15 53.34 90))
    (property "Value" "5,6k" (id 1) (at 57.15 55.88 90))
    (property "Footprint" "" (id 2) (at 57.15 61.468 90))
    (property "Datasheet" "~" (id 3) (at 57.15 59.69 0))
    (pin "1")
    (pin "2")
  )
  (symbol (lib_id "Device:C_Polarized") (at 71.12 59.69 90) (unit 1)
    (in_bom yes) (on_board yes) (fields_autoplaced)
    (property "Reference" "C2" (id 0) (at 70.231 52.07 90))
    (property "Value" "10 µF" (id 1) (at 70.231 54.61 90))
    (property "Footprint" "" (id 2) (at 74.93 58.7248 0))
    (property "Datasheet" "~" (id 3) (at 71.12 59.69 0))
    (pin "1")
    (pin "2")
  )
  (symbol (lib_id "Device:R") (at 49.53 53.34 0) (unit 1)
    (in_bom yes) (on_board yes)
    (property "Reference" "R1" (id 0) (at 44.45 52.07 0))
    (property "Value" "1k" (id 1) (at 44.45 54.61 0))
    (property "Footprint" "" (id 2) (at 47.752 53.34 90))
    (property "Datasheet" "~" (id 3) (at 49.53 53.34 0))
    (pin "1")
    (pin "2")
  )
  (sheet_instances
    (path (page "1"))
  )
  (symbol_instances
    (path
      (reference "#PWR01") (unit 1) (value "+9V") (footprint "")
    )
    (path
      (reference "#PWR02") (unit 1) (value "GND") (footprint "")
    )
    (path
      (reference "C1") (unit 1) (value "100 µF") (footprint "")
    )
    (path
      (reference "C2") (unit 1) (value "10 µF") (footprint "")
    )
    (path
      (reference "MK1") (unit 1) (value "Mik") (footprint "")
    )
    (path
      (reference "R1") (unit 1) (value "1k") (footprint "")
    )
    (path
      (reference "R2") (unit 1) (value "5,6k") (footprint "")
    )
    (path
      (reference "R3") (unit 1) (value "2,2k") (footprint "")
    )
  )
)
