UralTone Eurorack Series - Quad VCA -kit

UralTone Quad VCA is an AS3360 (CEM3360) based VCA module containing four independent VCAs. Each VCA has individual initial level and CV level adjustments. Operating mode, linear or exponential, of the VCA CV is selectable via switch.

Quad VCA has some options to choose from when assembled. Working either four independent VCAs, signal routing may be configured so the VCA works as 3ch voltage controlled mixer. VCAs 1-3 are inputs and VCA 4 is summing amplifier. All stages are CV controllable. Alternatively all inputs (CV and Audio) can be bridged together for operation for example in polyphonic applications.

The module is designed to be built easily. All parts are traditional through hole type and the layout is clear and easy to follow for beginners.

Dials: Initial Level, CV Level
Swiches: Mode (Exp / Lin)
Connectors: 4x CV in, 4x Audio in, 4x Audio out, 10pin eurorack power.
Control: 0-10V
Operation voltage: +12V @ 40mA / -12V @ 40mA
Measures: 8HP / Depth: 28mm

Kit:
-BOM, pictorial build guide (text in Finnish for time being)
-Tech support via email
-Front panel: Black glassfibrelaminate board with metallic text
-High quality PCBs (throuhg hole plated, silk screened)

You can find the build guide in English on our info-page!

(Note. The PCB of the kit has small error on copper layer. The fix is shown on the build guide - link above) 

What is included in the kit?

You´ll get all the parts that are needed to build the fully working eurorack module, istructions and parts for 10pin power supply cable.

How long it takes to assemble this kit?

Professional builder can do it in 1-2 hours, but for beginners, it can take 2-4 hours.

For whom this kit is suitable?

Kit is intended for all, beginners, experienced builders etc. These kits works with safe voltafes and building is just easy and fun  - it's always rewarding to use something that you have built by your own hands. Assembling the kit however requires special care - after all this is connected as part of expensive eurorack system.

What kind of tools do you need to build kits?

Pretty basic tools are enough but, especially if you are the beginner, please use a good soldering station and good quality solder. Making good joints with lousy soldering equipment is difficult. We have collected a tool kit from the tools we actually use every day. These are not that expensive but works great for building all kinds of electronic circuits. You can find it here:

Tool kit for building audio equipments

And you also get the best customer care so if you have any question during the building process or cannot get your project to work we are here to help you!