2 layers120 × 130 mm
SingularitySurfer V1
nkrackow/SingularitySurfer-FPGA-Lock-In-Amplifier
Repository for the development of an FPGA based DSP Lock-In Amplifier
174 parts80MIT
2 layers100 × 66 mm
Purrtico M
greyboxaudio/Purrtico-M- Size
- 100 × 66 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 130
- Nets
- 63
- Pads
- 281
- Tracks, vias
- 623, 59
- Pours
- 212
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 Jul 2024
- Updated
- 16 Feb 2026
Overview
Purrtico M is an open-source printed circuit board by greyboxaudio, from the greyboxaudio/Purrtico-M repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 66 mm with 130 parts on 63 nets, routed with 623 tracks and 59 vias.
It is built around the OPA1679ID. Its parts include 49 resistors, 34 capacitors, 4 connectors and 3 ICs.
Main components
1README
README.mdPurrtico-M
Based on the AMEK MZ-15-RN Equalizer
Parts
130| Qty | Value | Footprint | References |
|---|---|---|---|
| 31 | TestPoint | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP1, TP2, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23 +15 |
| 12 | 2k7 | Resistor_SMD:R_1206_3216Metric | R1, R2, R3, R4, R6, R7, R12, R15, R40, R41, R42, R43 |
| 10 | 100u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1, C2, C5, C6, C10, C22, C25, C26, C29, C35 |
| 8 | 0R | Resistor_SMD:R_1206_3216Metric | R24, R35, R37, R39, R45, R47, R49, R51 |
| 6 | 100n | Capacitor_SMD:C_1206_3216Metric | C13, C14, C16, C17, C23, C24 |
| 6 | 100p | Capacitor_SMD:C_1206_3216Metric | C3, C4, C7, C11, C27, C28 |
| 4 | 1k5 | Resistor_SMD:R_1206_3216Metric | R10, R13, R29, R32 |
| 3 | 5k log | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | RV1, RV5, RV6 |
| 3 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J3, J4 |
| 3 | OPA1679 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1, U2, U3 |
| 2 | 100R | Resistor_SMD:R_1206_3216Metric | R28, R30 |
| 2 | 100k | Resistor_SMD:R_1206_3216Metric | R55, R56 |
| 2 | 10k log | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | RV2, RV4 |
| 2 | 10u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C12, C15 |
| 2 | 1k8 | Resistor_SMD:R_1206_3216Metric | R8, R18 |
| 2 | 22p | Capacitor_SMD:C_1206_3216Metric | C18, C37 |
| 2 | 270R | Resistor_SMD:R_1206_3216Metric | R9, R11 |
| 2 | 2k | Resistor_SMD:R_1206_3216Metric | R27, R33 |
| 2 | 390R | Resistor_SMD:R_1206_3216Metric | R31, R34 |
| 2 | 3M3 | Resistor_SMD:R_1206_3216Metric | R21, R22 |
| 2 | 56n | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C8, C9 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2 |
| 1 | 10k lin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | RV3 |
| 1 | 12k | Resistor_SMD:R_1206_3216Metric | R26 |
| 1 | 150n | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C19 |
| 1 | 18k | Resistor_SMD:R_1206_3216Metric | R44 |
| 1 | 1k | Resistor_SMD:R_1206_3216Metric | R5 |
| 1 | 1k2 | Resistor_SMD:R_1206_3216Metric | R16 |
| 1 | 1u | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C32 |
| 1 | 220p | Capacitor_SMD:C_1206_3216Metric | C20 |
| 1 | 22k | Resistor_SMD:R_1206_3216Metric | R19 |
| 1 | 22n | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C34 |
| 1 | 22u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C21 |
| 1 | 2k2 | Resistor_SMD:R_1206_3216Metric | R25 |
| 1 | 2n2 | Capacitor_THT:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C31 |
| 1 | 330R | Resistor_SMD:R_1206_3216Metric | R14 |
| 1 | 47k | Resistor_SMD:R_1206_3216Metric | R17 |
| 1 | 4k7 | Resistor_SMD:R_1206_3216Metric | R36 |
| 1 | 750R | Resistor_SMD:R_1206_3216Metric | R23 |
| 1 | 8k2 | Resistor_SMD:R_1206_3216Metric | R20 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | LOGO | LOGO | G*** |
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Questions
How big is the Purrtico M PCB?
It measures 100 × 66 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Purrtico M use?
130 parts, built around the OPA1679ID. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Purrtico M KiCad files?
From the greyboxaudio/Purrtico-M repository on GitHub, at the commit this page was made from: the board is Purrtico_M.kicad_pcb and its schematic Purrtico_M.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Purrtico M design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).