7Dials CV Express, Build Manual

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Thank you for your purchase of the 7Dials CV Express module. We hope you find this unit to be a creative
addition to your modular synthesiser.
This build guide will show you how to build the CV Express module, focusing on our kit for the popular
Eurorack format.
The assembly of this DIY module will only require a small amount of elementary electronics
knowledge, but (like any DIY project) it does require a good level of soldering ability. If you are yet to
acquire soldering skills or experience then we would recommend you first practice on some simpler kits.
This project is not by any means a difficult build, but it wouldn’t really be considered an ideal starting
project for a total beginner.
There are some really good DIY learning resources and soldering tutorials available online,
for example:
Adafruit-Soldering-Guide
If you’re building the CV Express from one of our kits, please make sure you first check the quantities and
component values of all parts against the BOM provided. All resistors of multiple quantities should have
their values noted on the tape. Single quantity resistors will need to be identified by the builder, we’ve
included a list of all the relevant resistor colour codes needed for this project. It’s certainly worth double
checking that the correct resistors are all going in the right spots.
100k - Brown-Black-Black-Orange--Brown
110k - Brown-Brown-Black-Orange--Brown
1k - Brown-Black-Black-Brown--Brown
390r - Orange-White-Black-Black--Brown
36k - Orange-Blue-Black-Red--Brown
4k7 - Yellow-Violet-Black-Brown--Brown
2k - Red-Black-Black-Brown--Brown
4m7 - Yellow-Violet-Black-Yellow--Brown
100r - Brown-Black-Black-Black--Brown
10k - Brown-Black-Black-Red--Brown
200k - Red-Black-Black-Orange--Brown
220k - Red-Red-Black-Orange--Brown
220r - Red-Red-Black-Black--Brown
If you’re not building from a kit please refer to the BOM where we list part numbers and provide links to
various suppliers. All of the links are provided only as an aid to help the diy builder find or compare the ap-
propriate part required for this project.
Any links provided in this manual are not to be seen as an endorsement of that product.
If you are sourcing your own parts and have any questions, please don’t hesitate to contact us, we’ll be
happy to help in any way we can. Builders can also check out the dedicated 7Dials CV Express Muffs
thread:
https://www.muffwiggler.com/forum/viewtopic.php?t=145913&start=0
CV Express
build guide
version 1.0
December 2015
1