2 layers96 × 22 mm
DMH Dual VCF Diode Ladder PCB Conn
DeMarco/DMH-Dual-VCF-Diode-Ladder
Stereo version of DMH Diode Ladder VCF
7 parts2
2 layers146 × 175 mm
DMH Dual VCF Diode Ladder PCB
DeMarco/DMH-Dual-VCF-Diode-Ladder2Stereo version of DMH Diode Ladder VCF
- Size
- 146 × 175 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 201
- Nets
- 148
- Pads
- 587
- Tracks, vias
- 1,272, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Nov 2024
- Updated
- 10 Jan 2025
Overview
DMH Dual VCF Diode Ladder PCB is an open-source printed circuit board by DeMarco, from the DeMarco/DMH-Dual-VCF-Diode-Ladder repository on GitHub. It is a 2-layer board of 146 × 175 mm with 201 parts on 148 nets, routed with 1,272 tracks and 0 vias.
It is built around the BC548. Its parts include 96 resistors, 32 capacitors, 23 diodes, 10 switches and 7 ICs.
Main components
1README
README.mdDMH-Dual-VCF-Diode-Ladder
Stereo version of DMH Diode Ladder VCF
Parts
201| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R11, R16, R26, R28, R38, R42, R44, R46, R56, R60, R64, R65, R67, R71, R76 +7 |
| 20 | 33k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R18, R21, R29, R31, R32, R33, R34, R35, R36, R47, R49, R50, R51, R52, R53 +4 |
| 18 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D6, D7, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +2 |
| 16 | 100nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18 |
| 10 | 1nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C22, C23, C24, C25, C26, C29, C30, C31, C32, C33 |
| 8 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R39, R40, R43, R57, R58, R61, R78, R95 |
| 8 | 50k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV2, RV4, RV8, RV10, RV13, RV15, RV17, RV21 |
| 7 | 100k | SynthStuff:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1, RV6, RV7, RV12, RV14, RV18, RV22 |
| 7 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket | U1, U2, U3, U4, U5, U6, U7 |
| 6 | 100k | SynthStuff:Potentiometer_TT_P110KH1 | RV3, RV5, RV9, RV11, RV16, RV20 |
| 6 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R69, R74, R75, R86, R91, R92 |
| 6 | 20k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R63, R72, R73, R80, R89, R90 |
| 6 | 68k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4, R7, R8, R19, R22, R23 |
| 6 | SW_SPDT | SynthStuff:Toggle_Switch_TE | SW1, SW2, SW3, SW4, SW5, SW6 |
| 5 | 27k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R12, R17, R30, R48 |
| 4 | 100R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R68, R70, R85, R87 |
| 4 | 1uF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C21, C27, C28, C34 |
| 4 | 2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R27, R37, R45, R55 |
| 4 | 47k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R10, R24, R25 |
| 4 | BC548 | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q1, Q2, Q3, Q4 |
| 4 | Conn_01x06 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J50, J60, J70, J80 |
| 3 | 3k3 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13, R14, R15 |
| 2 | 100k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV19, RV23 |
| 2 | 14k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5, R20 |
| 2 | 47K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R41, R59 |
| 2 | 47uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1, C2 |
| 2 | 82k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R66, R83 |
| 2 | LED_Red | LED_THT:LED_D3.0mm | D4, D5 |
| 2 | SW_SPDT_OnOffOn | SynthStuff:Toggle_Switch_TE | SW7, SW9 |
| 1 | 5M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R96 |
| 1 | Conn_01x01 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J0 |
| 1 | IDC_02x08 | SynthStuff:IDC-Header_2x08_P2.54mm_Vertical_Eurorack | J100 |
| 1 | LED_Blue | LED_THT:LED_D3.0mm | D3 |
| 1 | SB140+ | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | SB140- | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D2 |
| 1 | SW_DPDT_OnOn | SynthStuff:Toggle_Switch_2_Poles_TE | SW10 |
| 1 | SW_SPDT_321 | SynthStuff:Toggle_Switch_TE | SW8 |
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Questions
How big is the DMH Dual VCF Diode Ladder PCB PCB?
It measures 146 × 175 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DMH Dual VCF Diode Ladder PCB use?
201 parts, built around the BC548. 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 DMH Dual VCF Diode Ladder PCB KiCad files?
From the DeMarco/DMH-Dual-VCF-Diode-Ladder repository on GitHub, at the commit this page was made from: the board is DMH_Dual_VCF_Diode_Ladder_PCB/DMH_Dual_VCF_Diode_Ladder_PCB.kicad_pcb and its schematic DMH_Dual_VCF_Diode_Ladder_PANEL/DMH_Dual_VCF_Diode_Ladder_PANEL.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DMH Dual VCF Diode Ladder PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask DeMarco before reusing the design.