Befaco - VC ADSR
The circuit is based in a dual transistor “Current Mirror” (a voltage controlled integrator) and switching logic.
Phase Time Limits:
Attack: Min 3.0ms (down to 200µS with negative CV) // Max 10s
Decay: Min 2.8ms (down to 400µS with negative CV) // Max 10s
Release: Min 2.8ms (with Sustain at maximum) // Max 10s
Features:
• Voltage controlled stages with manual control.
• Gate output on each stage of the envelope.
• Push button and Gate/Trigger input
• Control of the response curve between each stage of the envelope (from linear to logarithmic/exponential)
DIY-Kit-Type:
THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
| Current draw +12 V [mA]: | 55 |
|---|---|
| Current draw -12 V [mA]: | 25 |
| DIY Level: | Medium |
| Depth [mm]: | 26 |
| Width [HP]: | 8 |
| Format: | 3U |
| Panel / Color: | Black Alu |
BEFACO Modular, S.L.
Pere IV 29-35
7° 6a
08018 Barcelona
Spain
sales@befaco.org
Product Safety Information
Eurorack DIY Kits
Important Notice & Intended Use
Please read this safety guide before installation or use. This kit is intended for adult users experienced in electronics and modular synthesis. Assembly, including soldering, is required. Proper testing and installation are essential to ensure safe and functional operation. The completed module is intended for installation in a Eurorack-compatible synthesizer system powered by ±12V and +5V.
General Warnings
1. Electrical Hazards:
• Ensure the power supply matches the module’s specified voltage and current ratings (refer to the product manual). Incorrect voltage can damage the module and pose a safety risk.
• Never connect or disconnect the module while the Eurorack system is powered on.
• Wrong polarity can damage your module or system. Make sure the module is connected with correct polarity.
2. Heat Generation:
• The module may generate heat during operation. Ensure proper ventilation within your Eurorack case to prevent overheating.
3. Sharp Edges:
• The module’s faceplate and components may have sharp edges. Handle with care to avoid cuts or scratches.
4. Small Parts:
• Contains small parts that could cause a choking hazard. Keep away from children and pets.
5. Compatibility:
• This module is designed specifically for Eurorack-compatible systems. Connecting it to non-compatible systems may result in damage or malfunction.
Assembly Requirements
• Soldering skills are required to complete the module.
• Ensure a clean, well-lit and ventilated workspace free of flammable materials during assembly.
• Use appropriate tools and safety equipment, such as eye protection.
Testing
• Test the module thoroughly for shorts or incorrect assembly before powering it in your Eurorack system. When the unit has malfunctions due to incorrect assembly, the entire Eurorack system might be damaged. It's a good idea to test it in a separate case with only that single module.
• Use a multimeter or other appropriate tools to confirm proper functionality.
Installation and Use
• Mount securely in a Eurorack case using the provided screws.
• Use only the included or manufacturer-recommended power cable.
• Connect only when the power is off.
• Follow the module's user guide for instructions on operation. Do not exceed the input/output limits specified.
Responsibility
Users are solely responsible for proper assembly and testing. Contact manufacturer support for assistance if needed.
Environmental Safety
• Dispose of the module, its components, and packaging in accordance with local electronic waste regulations.
Liability Disclaimer
• The manufacturer or distributor is not responsible for any injury, damage, or malfunction resulting from improper installation, use, or modification of this product.
Contact Information
For further assistance, contact the manufacturer (you'll find the info under each product in our shop) or our shop support team at:
Tech Creation Lab Leipzig UG (haftungsbeschränkt)
Nonnenstrasse 19, 04229 Leipzig, Germany
support@exploding-shed.com
Befaco is an Eurorack manufacturer that also offers DIY kits, organizes workshops and releases their designs under Creative Commons license.
In February 2010 Befaco was created as an open hardware platform focusing on professional DIY musical hardware, materializing the previous electronic, musical and artistic research of its members.
Our main activity has been developing synthesizer modules in eurorack
format and making them available in workshops. All this research is
published under CC-NC-SA License, so people can download the schematics,
and technical assembly guides, to make their own variations of the
projects for personal and educative purposes. Also build all our designs
during our regular workshops in cities as Barcelona, Madrid, London or
Berlin.
During the past twelve years, apart of these regular four
cities, we have visited cities as Tokyo, Kyoto, Toronto, Montreal,
Chicago, Frankfurt, Helsinki, Lyon, Stuttgart and Amsterdam, amongst
many other European cities.
These workshops are a huge test playground where we can track each module being built by different worldwide users, get direct feedback and quickly improve them with, develop new ones, or adapt these instruments to users demands constantly.
Direct contact with DIY enthusiasts allows an implication of users in the structure, allowing them to design their own modules and develop them in a professional way. This has developed into an incubation environment for several new modular initiatives, allowing different makers to start their own similar projects.
Befaco initiative is possible thanks to the support of Hangar, an artistic production centre in Barcelona, Barcelona city hall and the titanic work by the whole Befaco team.
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