2 layers50 × 110 mm
2 layers90.2 × 128.5 mm
Vintage Dual VCA v1.0
StudioKAT/VintageDualVCA7If nothing is patched into OUT1, the signal from CH1 is automatically mixed into OUT2.
- Size
- 90.2 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 113
- Nets
- 64
- Pads
- 292
- Tracks, vias
- 434, 74
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Apr 2025
- Updated
- 16 Jul 2025
Overview
Vintage Dual VCA v1.0 is an open-source printed circuit board by StudioKAT, from the StudioKAT/VintageDualVCA repository on GitHub. It is a 2-layer board of 90.2 × 128.5 mm with 113 parts on 64 nets, routed with 434 tracks and 74 vias.
It is built around the TL072, LM13700MX/NOPB-CN and CJ431, with the B10K, 1N4148WS and 1N5819WS among its other parts. Its parts include 41 resistors, 18 capacitors, 11 connectors, 7 ICs and 6 diodes. It belongs with the retro computing and games boards of this library.
Main components
7
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
LM13700MX/NOPB-CN
SOP-16-20℃~+85℃ 10V~32V 110dB 5000uV 50V/us 600nA 8000pA Transconductance Amplifier ±18V SOP-16 Special Purpose Amplifiers ROHSChipNoboSpecial Purpose Amplifiers
CJ431
SOT-89-3-25℃~+85℃@(Ta) 100mA 1mA 2.5V~36V 50ppm/℃ Adjustable Parallel ±0.5% SOT-23 Voltage Reference ROHSJiangsu Changjing Electronics Technology (CJ)Voltage ReferenceB10K
RES-TH_RK10J12E002LTH-3P SMT ROHSJLCPCB AssemblyUncategorised
1N4148WS
SOD-3231.25V@150mA 100V 150mA 1uA@75V 200mW 2A 4ns Independent SOD-323 Switching Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Switching Diodes1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
MMBT3906
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200mA 200mW 300MHz 300mV 40V 5V PNP SOT-23 Bipolar (BJT) ROHSTWGMCBipolar (BJT)
README
README.mdVintage Dual VCA
概要 / Overview
Vintage Dual VCA は、8HPサイズのデュアル・リニアVCAモジュールです。
LM13700をベースにしており、過大入力時にわずかな歪みが加わるよう設計されています。
DCカップリングに対応しており、各入力にはアッテネーターが接続されているため、一般的なリニアVCAとしても使用可能です。
各チャンネルには2系統のCV入力があり、+10VのCV信号を想定しています。
- A1/B1：極性反転が可能なアッテネーター／インバーターに接続されています
- A2/B2：入力信号を反転し、コンプレッサーのサイドチェインのような効果を得るために設計されています
また、OUT1にジャックを接続していない場合、CH1の信号はOUT2へ自動的にミックスされて出力されます。
Vintage Dual VCA is a dual linear VCA module in an 8HP format.
It is based on the LM13700 and intentionally designed to introduce subtle distortion when overdriven.
The module is DC-coupled, and each input is equipped with an attenuator, making it fully functional as a standard linear VCA.
Each channel offers two CV inputs, optimized for +10V control signals:
- A1/B1 is connected to an attenuverter with polarity inversion capability.
- A2/B2 inverts the incoming signal, designed to emulate a sidechain-like effect similar to that of a compressor.
If nothing is patched into OUT1, the signal from CH1 is automatically mixed into OUT2.
仕様 / Spec
- Format: Eurorack
- Function: Linear VCA
- Current needs: +12V: 35mA, -12V: 35mA
- Width: 8 HP
- Depth: 25mm (including power connector)
動画 / Movie
販売 / Sales
StudioKATオフィシャルショップで販売しています。(日本国内限定)
https://www.studiokat.jp/items/106541679
ライセンス / License
この作品は Creative Commons 表示 - 継承 4.0 国際 (CC BY-SA 4.0) の下でライセンスされています。
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
クレジット / Credits
- Designed by : StudioKAT
- Website : https://www.studiokat.jp/
- GitHub : https://github.com/StudioKAT
- X(Twitter) : https://x.com/StudioKAT_synth
- Instagram : https://www.instagram.com/studiokat_modular/
更新履歴 / Changelog
2025-05-28v1.0 Released
Parts
113| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16 |
| 12 | 100K | Resistor_SMD:R_0402_1005Metric | R8, R9, R10, R12, R17, R21, R27, R28, R29, R31, R36, R40 |
| 8 | 200K | Resistor_SMD:R_0402_1005Metric | R4, R5, R6, R7, R23, R24, R25, R26 |
| 8 | PH_Jack | kat_eurorack:PH_AudioJack_3.5mm | H10, H11, H12, H13, H14, H15, H16, H17 |
| 5 | 1K | Resistor_SMD:R_0402_1005Metric | R1, R20, R22, R39, R41 |
| 5 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3, U4, U5, U6, U7 |
| 4 | 1.5K | Resistor_SMD:R_0402_1005Metric | R14, R15, R33, R34 |
| 4 | 10K | Resistor_SMD:R_0402_1005Metric | R2, R3, R11, R30 |
| 4 | 13K | Resistor_SMD:R_0603_1608Metric | R18, R19, R37, R38 |
| 4 | B10K | kat_eurorack:Potentiometer_RV09 | RV2, RV3, RV5, RV6 |
| 4 | Jumper | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1, JP2, JP3, JP4 |
| 4 | PH_Pot | kat_eurorack:PH_RK097_15mmKnob | H4, H5, H8, H9 |
| 2 | 1N4148WS | Diode_SMD:D_SOD-323 | D3, D5 |
| 2 | 1N5819WS | Diode_SMD:D_SOD-323 | D1, D2 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 330pF | Capacitor_SMD:C_0402_1005Metric | C17, C18 |
| 2 | 51K | Resistor_SMD:R_0402_1005Metric | R13, R32 |
| 2 | 8.2K | Resistor_SMD:R_0402_1005Metric | R16, R35 |
| 2 | B100K | kat_eurorack:Potentiometer_RV09 | RV1, RV4 |
| 2 | LED_Dual_Bidirectional | LED_THT:LED_D3.0mm | D4, D6 |
| 2 | MMBT3906 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | PH_LED | kat_eurorack:PH_LED_3.0mm | H2, H3 |
| 2 | PH_Pot | kat_eurorack:PH_RK097_15mmKnob_center | H6, H7 |
| 1 | +5V_TP | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1 |
| 1 | Audio IN_1 | kat_eurorack:AudioJack_PJ301M-12 | J4 |
| 1 | Audio IN_2 | kat_eurorack:AudioJack_PJ301M-12 | J8 |
| 1 | Audio OUT_1 | kat_eurorack:AudioJack_PJ301M-12 | J5 |
| 1 | Audio OUT_2 | kat_eurorack:AudioJack_PJ301M-12 | J9 |
| 1 | CJ431 | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | CV IN_1 | kat_eurorack:AudioJack_PJ301M-12 | J2 |
| 1 | CV IN_2 | kat_eurorack:AudioJack_PJ301M-12 | J3 |
| 1 | CV IN_3 | kat_eurorack:AudioJack_PJ301M-12 | J6 |
| 1 | CV IN_4 | kat_eurorack:AudioJack_PJ301M-12 | J7 |
| 1 | EXT IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | EXT OUT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J11 |
| 1 | LM13700MX/NOPB | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | POWER | kat_eurorack:BoxHeader_2x05_2.54mm_Europower | J1 |
| 1 | Panel | kat_eurorack:Panel_8HP | H1 |
Questions
How big is the Vintage Dual VCA v1.0 PCB?
It measures 90.2 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Vintage Dual VCA v1.0 use?
113 parts, built around the TL072, LM13700MX/NOPB-CN, CJ431 and B10K. 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 Vintage Dual VCA v1.0 KiCad files?
From the StudioKAT/VintageDualVCA repository on GitHub, at the commit this page was made from: the board is v1.0/KiCAD/Vintage Dual VCA_v1.0/Vintage Dual VCA_v1.0.kicad_pcb and its schematic v1.0/KiCAD/Vintage Dual VCA_v1.0/Vintage Dual VCA_v1.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Vintage Dual VCA v1.0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask StudioKAT before reusing the design.
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