2 layers199.4 × 100.1 mm
2 layers70 × 85 mm
Hs2
mgm8/hs24Analog guitar pedal based on Boss HM-2
- Size
- 70 × 85 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 90
- Nets
- 51
- Pads
- 204
- Tracks, vias
- 470, 36
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 22 Jul 2022
- Updated
- 28 Jun 2023
Overview
Hs2 is an open-source printed circuit board by mgm8, from the mgm8/hs2 repository on GitHub. It is a 2-layer board of 70 × 85 mm with 90 parts on 51 nets, routed with 470 tracks and 36 vias.
It is built around the 1N34A. Its parts include 37 resistors, 24 capacitors, 8 diodes, 5 connectors and 4 transistors. It belongs with the audio and music boards of this library.
Main components
1README
README.md
HS2
Analog guitar pedal based on Boss HM-2.
Overview
This is an analog guitar pedal based on the Boss HM-2, using the schematics of the project "The Swede" as main reference.
PCB
The Printed Circuit Board of version v1.0 of the project can be seen below:
This PCB was a courtesy of PCBWay.
Bill of Materials
| ID | Designator | Quantity | Description |
|---|---|---|---|
| 1 | C16 | 1 | Capacitor Film 100nF 25V |
| 2 | R16,R21 | 2 | Resistor 68k 1/4W 1% |
| 3 | C23 | 1 | Capacitor Electrolytic 100uF 25V |
| 4 | C8,C6,C2,C1,C21 | 5 | Capacitor Film 47nF 25V |
| 5 | C11 | 1 | Capacitor Film 1nF 25V |
| 6 | Q1 | 1 | 2N5457 |
| 7 | R26,R35,R24,R10,R4,R14,R1,R36,R20,R19 | 10 | Resistor 10k 1/4W 1% |
| 8 | D8,D4,D1,D7,D2 | 5 | 1N4148 |
| 9 | Q3 | 1 | 2N3906 |
| 10 | D5,D6 | 2 | 1N34A, 1N60, D9E, etc. (Germanium Diodes) |
| 11 | R23,R22 | 2 | Resistor 3k3 1/4W 1% |
| 12 | C24,C5,C20 | 3 | Capacitor Electrolytic 10uF 25V |
| 13 | R7 | 1 | Resistor 22R 1/4W 1% |
| 14 | R2 | 1 | Resistor 1M 1/4W 1% |
| 15 | C12,C10,C22 | 3 | Capacitor Electrolytic 1uF 25V |
| 16 | R30,R34,R38,R32 | 4 | Resistor 330R 1/4W 1% |
| 17 | R12,R28,R29,R33,R5 | 5 | Resistor 100k 1/4W 1% |
| 18 | R18 | 1 | Resistor 220k 1/4W 1% |
| 19 | C19 | 1 | Capacitor Film 4.7nF 25V |
| 20 | U2,U3,U1 | 3 | M5218L |
| 21 | C4 | 1 | Capacitor Electrolytic 47uF 25V |
| 22 | R27,R9 | 2 | Resistor 1k 1/4W 1% |
| 23 | D3 | 1 | 1N4001 |
| 24 | R13,R6,R25 | 3 | Resistor 470k 1/4W 1% |
| 25 | R17 | 1 | Resistor 47k 1/4W 1% |
| 26 | VR1 | 1 | Potentiometer Anti-Log 250k |
| 27 | R31 | 1 | Resistor 82k 1/4W 1% |
| 28 | C13 | 1 | Capacitor Ceramic 470pF 25V |
| 29 | C7,C3,C9 | 3 | Capacitor Ceramic 100pF 25V |
| 30 | R8 | 1 | Resistor 150R 1/4W 1% |
| 31 | VR3,VR2 | 2 | Potentiometer Linear 50k |
| 32 | R11,R3 | 2 | Resistor 22k 1/4W 1% |
| 33 | C17 | 1 | Capacitor Film 68nF 25V |
| 34 | VR4 | 1 | Potentiometer Log 10k |
| 35 | C14 | 1 | Capacitor Electrolytic 1.5uF 25V |
| 36 | C18 | 1 | Capacitor Film 6.8nF 25V |
| 37 | R15 | 1 | Resistor 120R 1/4W 1% |
| 38 | Q2,Q4 | 2 | 2N3904 |
| 39 | C15 | 1 | Capacitor Film 150nF 25V |
License
This project is licensed under CERN Open Hardware License, version 2.
Parts
90| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R4, R10, R14, R19, R20, R24, R26, R35, R36 |
| 5 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R12, R28, R29, R33 |
| 5 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D4, D7, D8 |
| 5 | 47nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2, C6, C8, C21 |
| 4 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R30, R32, R34, R38 |
| 4 | Conn_01x01 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J1, J2, J4, J5 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_TopBottom | H1, H2, H3, H4 |
| 3 | 100pF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C3, C7, C9 |
| 3 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C5, C20, C24 |
| 3 | 1uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C10, C12, C22 |
| 3 | 470k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6, R13, R25 |
| 3 | M5218L | Package_SIP:SIP-8_19x3mm_P2.54mm | U1, U2, U3 |
| 2 | 1N34A | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D5, D6 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9, R27 |
| 2 | 22k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R11 |
| 2 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q2, Q4 |
| 2 | 3k3 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R22, R23 |
| 2 | 68k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R16, R21 |
| 2 | B50k | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | VR2, VR3 |
| 1 | 1.5uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C14 |
| 1 | 100nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C16 |
| 1 | 100uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C23 |
| 1 | 120 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15 |
| 1 | 150 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8 |
| 1 | 150nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C15 |
| 1 | 1M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D3 |
| 1 | 1nF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C11 |
| 1 | 22 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 220k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R18 |
| 1 | 2N3906 | Package_TO_SOT_THT:TO-92_Inline | Q3 |
| 1 | 2N5457 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | 4.7nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C19 |
| 1 | 470pF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C13 |
| 1 | 47k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R17 |
| 1 | 47uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C4 |
| 1 | 6.8nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C18 |
| 1 | 68nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C17 |
| 1 | 82k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R31 |
| 1 | A10k | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | VR4 |
| 1 | C250k | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | VR1 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
The 89 most common of 90 parts.
Questions
How big is the Hs2 PCB?
It measures 70 × 85 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hs2 use?
90 parts, built around the 1N34A. 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 Hs2 KiCad files?
From the mgm8/hs2 repository on GitHub, at the commit this page was made from: the board is hs2.kicad_pcb and its schematic hs2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hs2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask mgm8 before reusing the design.
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