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Ring Mod 1U
EN55032:2015 ; EN55103-2:2009 (EN55024) ; EN61000-3-2 ; EN61000-3-3
Low Voltage: 2014/35/EU
This module is designed for use within an Intellijel-standard 1U row, such as contained within the Intellijel Palette cases, or 7U
Performance cases. Intellijel’s 1U specification is derived from the Eurorack mechanical specification set by Doepfer that is designed to support the use of lipped rails within industry standard rack heights.
Before You Start
Before installing a new module in your case, you must ensure your power supply has a free power header and sufficient available capacity to power the module:
You will also need to ensure your case has enough free space (hp) to fit the new module. To prevent screws or other debris from falling into the case and shorting any electrical contacts, do not leave gaps between adjacent modules, and cover all unused areas with blank panels. Similarly, do not use open frames or any other enclosure that exposes the backside of any module or the power distribution board.
You can use a tool like ModularGrid to assist in your planning. Failure to adequately power your modules may result in damage to your modules or power supply. If you are unsure, please contact us before proceeding.
Installing Your Module
When installing or removing a module from your case always turn off the power to the case and disconnect the power cable. Failure to do so may result in serious injury or equipment damage.
Ensure the 10-pin connector on the power cable is connected correctly to the module before proceeding. The red stripe on the cable must line up with the -12V pins on the module’s power connector. Different modules use different ways to indicate the -12V pins. Some may be labeled with “-12V;” a white stripe next to the -12V pins; the words “red stripe;” or some combination of these. Additionally, some modules may have shrouded headers, thus preventing backward connections.
Most modules will come with the cable already connected but it is good to double-check the orientation. Be aware that some modules may have headers that serve other purposes so ensure the power cable is connected to the right one.
The other end of the cable, with a 16-pin connector, connects to the power bus board of your Eurorack case. Ensure the red stripe on the cable lines up with the -12V pins on the bus board. On Intellijel power supplies the pins are labeled with the label “-12V” and a thick white stripe.
If you are using another manufacturer’s power supply, check their documentation for instructions. Once connected, the cabling between the module and the power supply should resemble the picture to the right:
Before reconnecting power and turning on your modular system, double-check that the ribbon cable is fully seated on both ends and that all the pins are correctly aligned. If the pins are misaligned in any direction or the ribbon is backward you can cause damage to your module, power supply, or other modules.
After you have confirmed all the connections, you can reconnect the power cable and turn on your modular system. You should immediately check that all your modules have powered on and are functioning correctly. If you notice any anomalies, turn your system off right away and check your cabling again for mistakes.
Ring Modulation is a classic synthesis technique that takes two source waveforms and generates a third waveform, which contains the sum and difference frequencies of the two inputs.
At audio rates, ring modulation creates a fairly inharmonic and ‘metallic’ sound. At LFO rates, ring modulation can generate interesting, complex modulation shapes.
Using Ring Mod 1U as a VCA
Not every patch needs a ring mod, but most patches could benefit from another VCA. For this reason, Ring Mod 1U can be pressed into service as a simple VCA when not performing ring modulation duties.
Calibrating the Ring Mod 1U
Ring Mod 1U is calibrated at the factory before shipping, so it’s unlikely you’ll ever need to perform this procedure. However, if necessary, you can easily do it using only an oscillator (capable of generating a simple, static waveform like a square wave) and an oscilloscope. Here is the process:
|Maximum Depth||32 mm|
|Current Draw|| 25 mA @ +12 V |
20 mA @ -12 V
Ring Mod 1U Manual
|intellijel Ring Mod 1U Ring Modulator [pdf] User Manual|
Ring Mod 1U, Ring Modulator, Ring Mod 1U Ring Modulator
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