2 layers37 × 113.9 mm
2 layers245.4 × 128.5 mm
Dual ADSR/VCA combo module for Eurorack
- Size
- 245.4 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 210
- Nets
- 193
- Pads
- 589
- Tracks, vias
- 1,361, 147
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 25 Jan 2024
- Updated
- 25 Jan 2024
Overview
MOL is an open-source printed circuit board by juanlittledevil, from the juanlittledevil/MOL repository on GitHub. It is a 2-layer board of 245.4 × 128.5 mm with 210 parts on 193 nets, routed with 1,361 tracks and 147 vias.
It is built around the LM13700M, TL072 and BC547. Its parts include 66 resistors, 27 connectors, 25 capacitors, 18 diodes and 10 transistors. It belongs with the audio and music boards of this library.
Main components
3
LM13700M
SOIC-16-16V~-4.75V、4.75V~16V 0℃~+70℃ 110dB 2 2.6mA 20mA 400nA 4mV 50V/us 600nA 9.5V~32V SOIC-16 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
BC547
TO-92Bipolar (BJT)Jiangsu Changjing Electronics Technology (CJ)
README
README.mdMOL
Dual ADSR/VCA combo module for Eurorack.
For more details check my blog post here: www.scruffycatstudios.com/posts/degvca/ part 2 here: www.scruffycatstudios.com/posts/degvca-part2/ And YouTube here: https://www.youtube.com/watch?v=CZ0J_sP1nE4&list=PLdO1IhDAhMdK4l8dJ0V3lOzin-maOEFXo
Parts
210| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 1N4148 | *SCS_ScruffyCat:D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp | D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18 |
| 12 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R27, R36, R45, R46, R52, R54, R59, R60, R61, R62, R64, R65 |
| 11 | 100n | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C3, C4, C11, C12, C13, C14, C15, C16, C17, C18, C25 |
| 10 | 3.5mm Jack | *SCS_ScruffyCat:JackHole_3.5mm | JH1, JH2, JH3, JH4, JH7, JH9, JH10, JH11, JH12, JH14 |
| 8 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R12, R26, R30, R33, R42, R44, R47, R53 |
| 8 | 30mm Vertical Slider | *SCS_ScruffyCat:PotHole_Slide_open_oval | PH1, PH2, PH3, PH4, PH5, PH6, PH7, PH8 |
| 8 | BC547 | Package_TO_SOT_THT:TO-92_Wide | Q1, Q2, Q3, Q4, Q5, Q6, Q9, Q10 |
| 6 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R2, R6, R18, R55, R57 |
| 6 | 10n | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2, C8, C9, C19, C20 |
| 6 | 22 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R8, R9, R11, R20, R21, R22 |
| 6 | 3.5mm Jack | *SCS_ScruffyCat:JackHole_3.5mm-OUT | JH5, JH6, JH8, JH13, JH15, JH16 |
| 6 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3, R5, R7, R15, R17, R19 |
| 5 | 330k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R35, R39, R51, R63, R68 |
| 5 | 39k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R13, R24, R31, R43, R48 |
| 4 | 100k | *SCS_ScruffyCat:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV9, RV10, RV11, RV12 |
| 4 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R28, R29, R37, R38 |
| 4 | Pot Jack (no-mount) | *SCS_ScruffyCat:PotHole_no-mount | PH9, PH10, PH11, PH12 |
| 4 | Screw Hole | *SCS_ScruffyCat:ScrewHole_Oval | J18, J19, J20, J21 |
| 4 | Switch Jack | *SCS_ScruffyCat:SwitchHole_screw-mount | SH1, SH2, SH3, SH4 |
| 3 | 27k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R10, R23, R49 |
| 3 | 5k | *SCS_ScruffyCat:Potentiometer_Trim_Vertical_THL | Offset_A1, Offset_B1, REF_ADJ_A1 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C6, C7 |
| 2 | 150k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R14, R25 |
| 2 | 1n | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C21, C22 |
| 2 | 2.2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R56, R58 |
| 2 | 22k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R4, R16 |
| 2 | 2N3906 | Package_TO_SOT_THT:TO-92_Wide | Q7, Q8 |
| 2 | 33k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R34, R40 |
| 2 | 4.7uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C10, C24 |
| 2 | 47uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C5, C23 |
| 2 | 6.8k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R32, R41 |
| 2 | Conn_01x12_Pin | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J25, J27 |
| 2 | Conn_01x12_Socket | Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Vertical | J24, J26 |
| 2 | FerriteBead | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P5.08mm_Vertical | FB1, FB2 |
| 2 | LED Button | *SCS_ScruffyCat:LED-ButtonHole | BH1, BH2 |
| 2 | SW_Push_LED | *SCS_ScruffyCat:SW_PushButton_LED_E-Type-A | SW1, SW2 |
| 2 | Schottky | *SCS_ScruffyCat:D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp | D1, D2 |
| 2 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket | U2, U4 |
| 2 | TestPoint | Connector_Pin:Pin_D0.9mm_L10.0mm_W2.4mm_FlatFork | TP1-(5v)1, TP1-(GND)1 |
| 1 | 470k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R50 |
| 1 | Attack A | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV1 |
| 1 | Attack B | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV5 |
| 1 | Audio In A_(C) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J4 |
| 1 | Audio In B_(C) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J5 |
| 1 | Audio Out A_(C) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J6 |
| 1 | Audio Out B_(C) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J7 |
| 1 | CV In A (0v - 10v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J16 |
| 1 | CV In A (0v - 5v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J12 |
| 1 | CV In B (0v - 10v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J17 |
| 1 | CV In B (0v - 5v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J13 |
| 1 | CV Out A (0v - 10v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J10 |
| 1 | CV Out B (0v - 10v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J11 |
| 1 | Conn_01x24_Pin | Connector_PinHeader_2.54mm:PinHeader_1x24_P2.54mm_Vertical | J23 |
| 1 | Conn_01x24_Socket | Connector_PinSocket_2.54mm:PinSocket_1x24_P2.54mm_Vertical | J22 |
| 1 | Decay A | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV2 |
| 1 | Decay B | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV6 |
| 1 | EuroRack Power | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J1 |
| 1 | Gate In A | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J2 |
| 1 | Gate In B | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J3 |
| 1 | Inv CV Out A (10v - 0v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J8 |
| 1 | Inv CV Out B (10v - 0v) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J9 |
| 1 | Inv Offset A | *SCS_ScruffyCat:SW_Toggle_Blue_wSlots | SW3 |
| 1 | Inv Offset B | *SCS_ScruffyCat:SW_Toggle_Blue_wSlots | SW4 |
| 1 | LM13700 | Package_DIP:DIP-16_W7.62mm_Socket | U3 |
| 1 | LM556 | Package_DIP:DIP-14_W7.62mm_Socket | U1 |
| 1 | Length A | *SCS_ScruffyCat:SW_Toggle_Blue_wSlots | SW5 |
| 1 | Length B | *SCS_ScruffyCat:SW_Toggle_Blue_wSlots | SW6 |
| 1 | Re-Trigger A_(C) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J14 |
| 1 | Re-Trigger B_(C) | *SCS_ScruffyCat:Jack_3.5mm_QingPu_thonk-PJ398SM_Vertical_CircularHoles | J15 |
| 1 | Release A | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV4 |
| 1 | Release B | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV8 |
| 1 | Sustain A | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV3 |
| 1 | Sustain B | *SCS_ScruffyCat:Potentiometer_Slide_open_THL | RV7 |
| 1 | TL072 | Package_DIP:DIP-8_W7.62mm_Socket | U5 |
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Questions
How big is the MOL PCB?
It measures 245.4 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MOL use?
210 parts, built around the LM13700M, TL072 and BC547. 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 MOL KiCad files?
From the juanlittledevil/MOL repository on GitHub, at the commit this page was made from: the board is MOL.kicad_pcb and its schematic MOL.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MOL design in my own project?
Its repository states no licence, so its author keeps all rights: ask juanlittledevil before reusing the design.