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Reference schematic

CP70_preamp_2025

edwin-oetelaar-CP70_preamp-2-CP70_preamp-schematic

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edwin-oetelaar-CP70_preamp-2-CP70_preamp-schematic

Take the project archive: a schematic is a root sheet plus every sub-sheet beside it, and the root alone opens with its hierarchy missing. The archive is zstd-compressed (tar.zst).

1Sheets
96Placed parts
32Net labels
KiCad 9File format

Bill of materials

80 distinct parts

80 resolve to something in the catalog — click through to the component.

RefValueSymbolQty
C201220 nF / 50 VDevice:C_Small
C202220 nF / 50 VDevice:C_Small
C203220 nF / 50 VDevice:C_Small
C204220 nF / 50 VDevice:C_Small
C205100uF / 35VDevice:C_Polarized_Small
C207100uF / 35VDevice:C_Polarized_Small
D201LED green 5 mmDevice:LED_Small_Filled
D202LED green 5 mmDevice:LED_Small_Filled
H201MountingHole_PadMechanical:MountingHole_Pad
H202MountingHole_PadMechanical:MountingHole_Pad
H203MountingHole_PadMechanical:MountingHole_Pad
H204MountingHole_PadMechanical:MountingHole_Pad
J201Conn_01x03_SocketConnector:Conn_01x03_Socket
J202Conn_02x20_Odd_EvenConnector_Generic:Conn_02x20_Odd_Even
J203Conn_01x08Connector_Generic:Conn_01x08
J204Conn_01x08Connector_Generic:Conn_01x08
J205Conn_01x08Connector_Generic:Conn_01x08
J206Conn_01x08Connector_Generic:Conn_01x08
J207Conn_01x08Connector_Generic:Conn_01x08
J208Conn_01x08Connector_Generic:Conn_01x08
J209Conn_01x08Connector_Generic:Conn_01x08
J210Conn_01x08Connector_Generic:Conn_01x08
R2012K7Device:R_Small
R2022K7Device:R_Small
R203470KDevice:R_Small
R204470KDevice:R_Small
R205470KDevice:R_Small
R206470KDevice:R_Small
R207470KDevice:R_Small
R208470KDevice:R_Small
R209470KDevice:R_Small
R210470KDevice:R_Small
R211100RDevice:R_Small
R212100RDevice:R_Small
R213100RDevice:R_Small
R214100RDevice:R_Small
R215100RDevice:R_Small
R216100RDevice:R_Small
R217100RDevice:R_Small
R218100RDevice:R_Small
Show the other 40
R219100RDevice:R_Small
R220100RDevice:R_Small
R221100RDevice:R_Small
R222100RDevice:R_Small
R223100RDevice:R_Small
R224100RDevice:R_Small
R225100RDevice:R_Small
R226100RDevice:R_Small
R227470KDevice:R_Small
R228470KDevice:R_Small
R229470KDevice:R_Small
R230470KDevice:R_Small
R231470KDevice:R_Small
R232470KDevice:R_Small
R233470KDevice:R_Small
R234470KDevice:R_Small
R235100RDevice:R_Small
R236100RDevice:R_Small
R237100RDevice:R_Small
R238100RDevice:R_Small
R239100RDevice:R_Small
R240100RDevice:R_Small
R241100RDevice:R_Small
R242100RDevice:R_Small
R243100RDevice:R_Small
R244100RDevice:R_Small
R245100RDevice:R_Small
R246100RDevice:R_Small
R247100RDevice:R_Small
R248100RDevice:R_Small
R249100RDevice:R_Small
R250100RDevice:R_Small
U201TL072Amplifier_Operational:TL072
U202TL072Amplifier_Operational:TL072
U203TL072Amplifier_Operational:TL072
U204TL072Amplifier_Operational:TL072
U205TL072Amplifier_Operational:TL072
U206TL072Amplifier_Operational:TL072
U207TL072Amplifier_Operational:TL072
U208TL072Amplifier_Operational:TL072

Provenance

Commit
unknown
Licence
CC-BY-4.0

How it is used

Trace's agent reads this design as context — what parts a board like this carries, how they are grouped across sheets, what a plausible layer stack and board size look like for the job. It is not copied. The licence above is permissive, and it, the repository and the commit are recorded so the origin of anything derived from it is always answerable.