Year: 2019

Laurentide Synthworks VG2 Eurorack Module Kit

Laurentide Synthworks VG2 Eurorack Module - DIY Build

Laurentide Synthworks VG2

Laurentide Synthworks VG2 is a Passive Dual Vactrol Gate meaning no power is needed to get some awesome sounds out of this eurorack module!  Each Vactrol Gate on the VG2 has 1 CV Input (gate, envelope, LFO, etc.), 1 Audio Input and 1 Audio Output. The CV Input hits the Vactrol LED, allowing whatever audio to pass through. In addition, there is a simple Low Pass Filter applied to the Audio Output with an amount (i.e. Cutoff) knob. As this is a passive circuit, it will not give you full cutoff control, but it does allow the calming of brash wave shapes. There is also an LED at the CV Input for a quick visual reference of the incoming signal.

Keep in mind that a passive circuit using a vactrol can cause subtile differences in tone and output sound. One may be slightly “louder” than the other, or one might have a longer or shorter release time. One circuit could be better suited for drums or percussion while the other might process harmonies or sequences more to your liking. That being said, each vactrol or VG2 is unique in its sound.  Being that the Laurentide Synthworks VG2 is available as a DIY kit only, this gives the builder the opportunity to tweak some of the resistors and vactrols and thus making each individual build unique in itself.

Laurentide Synthworks VG2 - Time Lapse Build Video

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During our build, we began by installing all of the supplied resistors and vactrols as recommended. As we dive more into the sound of the VG2, we might consider going back and cutting off some of the 1K resistors. It all just depends on how and what we decide to use it for in the end. The VG2 was supplied with white Davies Clone knobs, we opted to use Blood Red Davies Clone knobs to give our VG2 a more fitting look. (It matches their company logo better!). The build itself was relatively quick and to the point as we completed this module in under an hour. Laurentide Synthworks also provides some basic instructions on how and what to populate in the appropriate order via their website. We really didn’t follow the guide and just jumped right into this simple build. When it was all said and done, we popped it into one of our racks and off we went. For 49$, this kit is a must have in any Eurorack rig.

Laurentide Synthworks VG2 - Build Gallery

Laurentide Synthworks VG2 - Specifications

Module Details:
~ Manufactured by: Laurentide Synthworks
~ Model: VG2
~ Type: Dual Vactrol Gate

~ Power Draw: Passive Module – no power required
~ Depth: 14 mm
~ Height: 3U
~ Width: 4HP

Additional Build Notes

Important Note: As this is a passive circuit, it is advisable to use a Buffered Multiple before the CV Input to maintain voltage/amplitude, especially if you are using the top CV to drive both gates. Laurentides website advises that “whatever is sent to the CV jack on the top gate is also sent to the CV jack on the bottom gate. The downside to this is there is a slight voltage drop causing the both outputs to be slightly quieter than if the CV was only driving 1 gate. If you are only using one the inputs and have something against using the bottom gate, you can plug a dummy cable into the bottom CV, or completely disable it by cutting the trace”. 

Instructions on how to do this on available via the Laurentide Synthworks website or by clicking one of the links below.

If you have any questions about the build process or you would like to send us your comments or suggestions, please feel free to contact us!

~ f i N

Synthrotek Octave Fuzz – Time Lapse Build

Synthrotek Octave Fuzz - Time Lapse Build

For our first build of 2019, we take on the Synthrotek Octave Fuzz module.  You ask why we chose this module? What attracted us to needing this module in our rack?  Well the answer is simple… that 1970’s fuzz sound that you rarely hear in music these days.

Combined with the ability to trim the octave and gain on the back of the module opens up a whole new slew of sounds. The 70s never sounded so good in a module!  Onto the build … 

The Synthrotek Ocatve Fuzz is a relatively moderate build as long as you have a steady hand and patience while reading the BOM. Synthrotek has always done a great job with the BOM and their assembly guides, and the Octave Fuzz is no different.  The tricky part of this build is that you need to populate two boards.  This can quickly become a mess if you don’t have something to organize all of the parts in or if you aren’t paying attention to the BOM. Just remember, if it gets too overwhelming, simply focus on one board at a time and separate parts accordingly prior to assembly.  

As you can see from the video, we decided to work on both boards simultaneously, so that we do not lose track of where the resistors, diodes and capacitors go. The only thing differentiating which board your components go on is an asterisk on the BOM… (ie. You can lose track quickly if you aren’t paying attention)

When it was all complete, we also swapped out the classic white Davies knobs with some cool clear Davies knobs to give our module that individual look it needed. We popped it into our rack, patched it in and turned up the 70s fuzz of nostalgia. 

Check out the images of the build below, followed by the the Octave Fuzz Module Specifics. 

Octave Fuzz Build Gallery

Synthrotek Octave Fuzz Specifications:

Module Description:

– Scoop switch for a ‘scooped’ mid-range, or to have a midrange boost.

– CV input over the Expander part of the circuit (similar to gain)

– True wet/dry mix. – 35mm (1 3/8″) Deep

– Current Draw: 24mA @ -12v 32mA @ +12v 0mA @ +5v

Module Dimensions:

Height – 3U

Width – 6HP

Featured Music: Scientist (Drumcell Remix)

Artist: SONOIO

Album: NON RED

Released: 2011

Synthrotek Octave Fuzz Audio Sample

If you have any questions about the Synthrotek Octave Fuzz build, please feel free to contact us.  If you would like to purchase the Octave Fuzz kit, please click HERE to be redirected to Synthrotek where you can complete the purchase.

~ f i N

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