2 layers170 × 110 mm
Exp vintage vca
stash-s/synth-modules
Analog Synth Modules schematics shamelessly copied from Internets.
86 partsCC0-1.0
2 layers30 × 110 mm
Board b
stash-s/synth-modulesAnalog Synth Modules schematics shamelessly copied from Internets.
- Size
- 30 × 110 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 59
- Pads
- 204
- Tracks, vias
- 373, 38
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Nov 2025
- Updated
- 5 Oct 2026
Overview
Board b is an open-source printed circuit board by stash-s, from the stash-s/synth-modules repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 30 × 110 mm with 68 parts on 59 nets, routed with 373 tracks and 38 vias.
It is built around the LM13700M, BC857BS and SS14. Its parts include 32 resistors, 14 capacitors, 5 ICs, 4 diodes and 4 connectors.
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
BC857BS
SOT-363-55℃~+150℃ 15nA 2 PNP 200MHz 200mA 220 300mV 300mW 45V 5V PNP SOT-363 Bipolar (BJT) ROHSYangzhou Yangjie Electronic TechnologyBipolar (BJT)
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdsynth-modules
Analog Synth Modules schematics shamelessly copied from Internets.
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 330K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R4, R5, R6, R7, R8, R17, R18, R23, R29 |
| 8 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C6, C7, C8, C9, C10, C13 |
| 6 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R19, R20, R24, R27, R33, R35 |
| 4 | 680R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11, R12, R15, R16 |
| 3 | 20K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV7, RV8, RV10 |
| 2 | 10 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R25, R31 |
| 2 | 100K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R10 |
| 2 | 100pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C14 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C11, C12 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21, R22 |
| 2 | 1N4148 | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | 1k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV5, RV6 |
| 2 | 1n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 20K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R28, R34 |
| 2 | 2Meg | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R26, R32 |
| 2 | 33K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R14 |
| 2 | BC857BS | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U2, U5 |
| 2 | Conn_01x10_Socket | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J9, J10 |
| 2 | FerriteBead_Small | linear_vintage_vca:Ferrite_Bead_5mm_3.5mm_Horizontal | FB1, FB2 |
| 2 | SS14 | Diode_SMD:D_SMA | D3, D5 |
| 2 | TL074 | linear_vintage_vca:SOT-23-THIN-14_2x4.2mm_P0.5mm | U1, U4 |
| 1 | 20k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV9 |
| 1 | Board | PCM_kikit:Board | B |
| 1 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J12 |
| 1 | Conn_02x08_Odd_Even | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J15 |
| 1 | LM13700 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
Questions
How big is the Board b PCB?
It measures 30 × 110 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Board b use?
68 parts, built around the LM13700M, BC857BS and SS14. 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 Board b KiCad files?
From the stash-s/synth-modules repository on GitHub, at the commit this page was made from: the board is exp-vintage-vca/board_b.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Board b design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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