(export (version "E")
  (design
    (source "/Users/merkebgirmay/Downloads/kicad_BandPassFilter_circuit_modify/kicad_BandPassFilter_circuit_modify.kicad_sch")
    (date "2026-03-01T18:35:43-0800")
    (tool "Eeschema 9.0.7")
    (sheet (number "1") (name "/") (tstamps "/")
      (title_block
        (title)
        (company)
        (rev)
        (date)
        (source "kicad_BandPassFilter_circuit_modify.kicad_sch")
        (comment (number "1") (value ""))
        (comment (number "2") (value ""))
        (comment (number "3") (value ""))
        (comment (number "4") (value ""))
        (comment (number "5") (value ""))
        (comment (number "6") (value ""))
        (comment (number "7") (value ""))
        (comment (number "8") (value ""))
        (comment (number "9") (value "")))))
  (components
    (comp (ref "C1")
      (value "220n")
      (datasheet "~")
      (description "Unpolarized capacitor")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Unpolarized capacitor"))
      (libsource (lib "Device") (part "C") (description "Unpolarized capacitor"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "cap capacitor"))
      (property (name "ki_fp_filters") (value "C_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "9f8c2797-3f9d-42b1-9a18-b19ed8b80a7c"))
    (comp (ref "C2")
      (value "220n")
      (datasheet "~")
      (description "Unpolarized capacitor")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Unpolarized capacitor"))
      (libsource (lib "Device") (part "C") (description "Unpolarized capacitor"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "cap capacitor"))
      (property (name "ki_fp_filters") (value "C_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "92566591-01f0-4894-bafb-8e585306621f"))
    (comp (ref "C3")
      (value "47n")
      (datasheet "~")
      (description "Unpolarized capacitor")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Unpolarized capacitor"))
      (libsource (lib "Device") (part "C") (description "Unpolarized capacitor"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "cap capacitor"))
      (property (name "ki_fp_filters") (value "C_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "82a8dc96-407c-4ef4-95d2-cbaee1ffbb39"))
    (comp (ref "C4")
      (value "100n")
      (datasheet "~")
      (description "Unpolarized capacitor")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Unpolarized capacitor"))
      (libsource (lib "Device") (part "C") (description "Unpolarized capacitor"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "cap capacitor"))
      (property (name "ki_fp_filters") (value "C_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "1966bada-7175-45f9-aa31-3bce1c390911"))
    (comp (ref "R1")
      (value "27k")
      (datasheet "~")
      (description "Resistor, US symbol")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Resistor, US symbol"))
      (libsource (lib "Device") (part "R_US") (description "Resistor, US symbol"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "R res resistor"))
      (property (name "ki_fp_filters") (value "R_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "957148fa-9a7a-4a98-94a7-020c95000106"))
    (comp (ref "R2")
      (value "27k")
      (datasheet "~")
      (description "Resistor, US symbol")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Resistor, US symbol"))
      (libsource (lib "Device") (part "R_US") (description "Resistor, US symbol"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "R res resistor"))
      (property (name "ki_fp_filters") (value "R_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "7c2bfae9-2b62-4c43-912d-7587c8e82228"))
    (comp (ref "R3")
      (value "1k")
      (datasheet "~")
      (description "Resistor, US symbol")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Resistor, US symbol"))
      (libsource (lib "Device") (part "R_US") (description "Resistor, US symbol"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "R res resistor"))
      (property (name "ki_fp_filters") (value "R_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "f7c53bec-ca5c-4876-b675-91787302672f"))
    (comp (ref "R4")
      (value "1k")
      (datasheet "~")
      (description "Resistor, US symbol")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Resistor, US symbol"))
      (libsource (lib "Device") (part "R_US") (description "Resistor, US symbol"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "R res resistor"))
      (property (name "ki_fp_filters") (value "R_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "16b2b4c6-971a-49b4-90fc-29b02cc5f66d"))
    (comp (ref "R5")
      (value "10k")
      (datasheet "~")
      (description "Resistor")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Resistor"))
      (libsource (lib "Device") (part "R") (description "Resistor"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "R res resistor"))
      (property (name "ki_fp_filters") (value "R_*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "a6a1b3d7-f85e-4cd3-bc2f-c885be0b8fe6"))
    (comp (ref "U1")
      (value "TL072")
      (datasheet "http://www.ti.com/lit/ds/symlink/tl071.pdf")
      (description "Dual Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8")
      (fields
        (field (name "Footprint"))
        (field (name "Datasheet") "http://www.ti.com/lit/ds/symlink/tl071.pdf")
        (field (name "Description") "Dual Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8"))
      (libsource (lib "Amplifier_Operational") (part "TL072") (description "Dual Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "dual opamp"))
      (property (name "ki_fp_filters") (value "SOIC*3.9x4.9mm*P1.27mm* DIP*W7.62mm* TO*99* OnSemi*Micro8* TSSOP*3x3mm*P0.65mm* TSSOP*4.4x3mm*P0.65mm* MSOP*3x3mm*P0.65mm* SSOP*3.9x4.9mm*P0.635mm* LFCSP*2x2mm*P0.5mm* *SIP* SOIC*5.3x6.2mm*P1.27mm*"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "e27f1e83-114c-420a-ba3a-bcca4bd32c6d" "93d82354-7fbe-40c0-a85b-d330ca3206c8" "2efa9711-edf4-43d8-bacb-dc6fd9db29a2"))
    (comp (ref "V1")
      (value "VSIN")
      (datasheet "https://ngspice.sourceforge.io/docs/ngspice-html-manual/manual.xhtml#sec_Independent_Sources_for")
      (description "Voltage source, sinusoidal")
      (fields
        (field (name "Sim.Pins") "1=+ 2=-")
        (field (name "Sim.Params") "dc=0 ampl=1 f=1k ac=1")
        (field (name "Sim.Type") "SIN")
        (field (name "Sim.Device") "V")
        (field (name "Footprint"))
        (field (name "Datasheet") "https://ngspice.sourceforge.io/docs/ngspice-html-manual/manual.xhtml#sec_Independent_Sources_for")
        (field (name "Description") "Voltage source, sinusoidal"))
      (libsource (lib "Simulation_SPICE") (part "VSIN") (description "Voltage source, sinusoidal"))
      (property (name "Sim.Pins") (value "1=+ 2=-"))
      (property (name "Sim.Params") (value "dc=0 ampl=1 f=1k ac=1"))
      (property (name "Sim.Type") (value "SIN"))
      (property (name "Sim.Device") (value "V"))
      (property (name "Sheetname") (value "Root"))
      (property (name "Sheetfile") (value "kicad_BandPassFilter_circuit_modify.kicad_sch"))
      (property (name "ki_keywords") (value "simulation ac vac"))
      (sheetpath (names "/") (tstamps "/"))
      (tstamps "65be704e-3bca-4f53-a87d-bad605313852")))
  (libparts
    (libpart (lib "Amplifier_Operational") (part "TL072")
      (description "Dual Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8")
      (docs "http://www.ti.com/lit/ds/symlink/tl071.pdf")
      (footprints
        (fp "SOIC*3.9x4.9mm*P1.27mm*")
        (fp "DIP*W7.62mm*")
        (fp "TO*99*")
        (fp "OnSemi*Micro8*")
        (fp "TSSOP*3x3mm*P0.65mm*")
        (fp "TSSOP*4.4x3mm*P0.65mm*")
        (fp "MSOP*3x3mm*P0.65mm*")
        (fp "SSOP*3.9x4.9mm*P0.635mm*")
        (fp "LFCSP*2x2mm*P0.5mm*")
        (fp "*SIP*")
        (fp "SOIC*5.3x6.2mm*P1.27mm*"))
      (fields
        (field (name "Reference") "U")
        (field (name "Value") "TL072")
        (field (name "Footprint"))
        (field (name "Datasheet") "http://www.ti.com/lit/ds/symlink/tl071.pdf")
        (field (name "Description") "Dual Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8"))
      (pins
        (pin (num "1") (name "") (type "output"))
        (pin (num "2") (name "-") (type "input"))
        (pin (num "3") (name "+") (type "input"))
        (pin (num "4") (name "V-") (type "power_in"))
        (pin (num "5") (name "+") (type "input"))
        (pin (num "6") (name "-") (type "input"))
        (pin (num "7") (name "") (type "output"))
        (pin (num "8") (name "V+") (type "power_in"))))
    (libpart (lib "Device") (part "C")
      (description "Unpolarized capacitor")
      (docs "~")
      (footprints
        (fp "C_*"))
      (fields
        (field (name "Reference") "C")
        (field (name "Value") "C")
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Unpolarized capacitor"))
      (pins
        (pin (num "1") (name "") (type "passive"))
        (pin (num "2") (name "") (type "passive"))))
    (libpart (lib "Device") (part "R")
      (description "Resistor")
      (docs "~")
      (footprints
        (fp "R_*"))
      (fields
        (field (name "Reference") "R")
        (field (name "Value") "R")
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Resistor"))
      (pins
        (pin (num "1") (name "") (type "passive"))
        (pin (num "2") (name "") (type "passive"))))
    (libpart (lib "Device") (part "R_US")
      (description "Resistor, US symbol")
      (docs "~")
      (footprints
        (fp "R_*"))
      (fields
        (field (name "Reference") "R")
        (field (name "Value") "R_US")
        (field (name "Footprint"))
        (field (name "Datasheet") "~")
        (field (name "Description") "Resistor, US symbol"))
      (pins
        (pin (num "1") (name "") (type "passive"))
        (pin (num "2") (name "") (type "passive"))))
    (libpart (lib "Simulation_SPICE") (part "VSIN")
      (description "Voltage source, sinusoidal")
      (docs "https://ngspice.sourceforge.io/docs/ngspice-html-manual/manual.xhtml#sec_Independent_Sources_for")
      (fields
        (field (name "Reference") "V")
        (field (name "Value") "VSIN")
        (field (name "Footprint"))
        (field (name "Datasheet") "https://ngspice.sourceforge.io/docs/ngspice-html-manual/manual.xhtml#sec_Independent_Sources_for")
        (field (name "Description") "Voltage source, sinusoidal")
        (field (name "Sim.Pins") "1=+ 2=-")
        (field (name "Sim.Params") "dc=0 ampl=1 f=1k ac=1")
        (field (name "Sim.Type") "SIN")
        (field (name "Sim.Device") "V"))
      (pins
        (pin (num "1") (name "") (type "passive"))
        (pin (num "2") (name "") (type "passive")))))
  (libraries
    (library (logical "Amplifier_Operational")
      (uri "/Applications/KiCad/KiCad.app/Contents/SharedSupport/symbols//Amplifier_Operational.kicad_sym"))
    (library (logical "Device")
      (uri "/Applications/KiCad/KiCad.app/Contents/SharedSupport/symbols//Device.kicad_sym"))
    (library (logical "Simulation_SPICE")
      (uri "/Applications/KiCad/KiCad.app/Contents/SharedSupport/symbols//Simulation_SPICE.kicad_sym")))
  (nets
    (net (code "1") (name "+15V") (class "Default")
      (node (ref "U1") (pin "8") (pinfunction "V+") (pintype "power_in")))
    (net (code "2") (name "-15V") (class "Default")
      (node (ref "U1") (pin "4") (pinfunction "V-") (pintype "power_in")))
    (net (code "3") (name "/Vo1") (class "Default")
      (node (ref "R1") (pin "2") (pintype "passive"))
      (node (ref "R3") (pin "1") (pintype "passive"))
      (node (ref "U1") (pin "1") (pintype "output"))
      (node (ref "U1") (pin "2") (pinfunction "-") (pintype "input")))
    (net (code "4") (name "/in") (class "Default")
      (node (ref "C1") (pin "1") (pintype "passive"))
      (node (ref "V1") (pin "1") (pintype "passive")))
    (net (code "5") (name "GND") (class "Default")
      (node (ref "C4") (pin "1") (pintype "passive"))
      (node (ref "R2") (pin "1") (pintype "passive"))
      (node (ref "R5") (pin "2") (pintype "passive"))
      (node (ref "V1") (pin "2") (pintype "passive")))
    (net (code "6") (name "Net-(C1-Pad2)") (class "Default")
      (node (ref "C1") (pin "2") (pintype "passive"))
      (node (ref "C2") (pin "1") (pintype "passive"))
      (node (ref "R1") (pin "1") (pintype "passive")))
    (net (code "7") (name "Net-(C3-Pad1)") (class "Default")
      (node (ref "C3") (pin "1") (pintype "passive"))
      (node (ref "R3") (pin "2") (pintype "passive"))
      (node (ref "R4") (pin "1") (pintype "passive")))
    (net (code "8") (name "Net-(U1A-+)") (class "Default")
      (node (ref "C2") (pin "2") (pintype "passive"))
      (node (ref "R2") (pin "2") (pintype "passive"))
      (node (ref "U1") (pin "3") (pinfunction "+") (pintype "input")))
    (net (code "9") (name "Net-(U1B-+)") (class "Default")
      (node (ref "C4") (pin "2") (pintype "passive"))
      (node (ref "R4") (pin "2") (pintype "passive"))
      (node (ref "U1") (pin "5") (pinfunction "+") (pintype "input")))
    (net (code "10") (name "Vo2") (class "Default")
      (node (ref "C3") (pin "2") (pintype "passive"))
      (node (ref "R5") (pin "1") (pintype "passive"))
      (node (ref "U1") (pin "6") (pinfunction "-") (pintype "input"))
      (node (ref "U1") (pin "7") (pintype "output")))))