Blacklight Diode Compressor Guitar Pedal [Kit/Assembled]

Read the full title Blacklight Diode Compressor Guitar Pedal [Kit/Assembled]



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  • Handmade

This guitar pedal is based around an unusual compressor circuit using UV LEDs inspired by the automatic gain control circuit found in an early 70s Grundig reel to reel tape deck.

Check out my YouTube video on how it sounds and works here:

The pedal is housed in a compact and sturdy 3D printed enclosure measuring around 10cm by 6cm and features true bypass switching and two knobs to control the output volume and amount of compression.
It can be powered using any center negative 9V DC guitar pedal power supply. A power supply is not included so you need to provide your own. Also it doesn't run off of batteries. Sorry…

Fully assembled version too expensive? Just get the kit!

The kit comes with all the parts and components you need to assemble it yourself, including the 3D printed enclosure.
Some additional tools like a soldering iron, screwdrivers, pliers and side cutters are required. You probably also want to have some basic knowledge on how to read a schematic and assemble stuff. Just saying.

Still too expensive? This pedal is completely open source and all build files can be found on my GitHub so you can make your own:


Estimated arrival

The estimated delivery date is based on your purchase date, the recipient's location (actual or inferred), the seller's processing time and location, and the shipping carrier.

Other factors—such as shipping carrier delays or placing an order on weekend/holiday—may push the arrival of your item beyond this date.

Learn more

Nov 12-Dec 2

Oct 19

Order placed

After you place your order, NuclearLighthouse will take 1-2 weeks to prepare it for shipment.

Oct 26-Nov 2

Order ships

NuclearLighthouse puts your order in the mail.

Nov 12-Dec 2


Estimated to arrive at your doorstep Nov 12-Dec 2!

Returns & exchanges


Exceptions may apply
Etsy offsets carbon emissions from shipping and packaging on this purchase.
Etsy offsets carbon emissions from shipping and packaging on this purchase.

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Ships from Germany

7 shop reviews

5 out of 5 stars

Gordon Alexander Oct 3, 2021

5 out of 5 stars

Very pleased with this purchase

Purchased item:

Kevin Aug 16, 2021

5 out of 5 stars

Purchased item:

Reviewed by Inactive Feb 19, 2021

5 out of 5 stars

Oh my god so amazing oh my god so amazing oh my god so amazing oh my god oh my god oh my god so amazing

Purchased item:

Jordan Perez May 5, 2021

5 out of 5 stars

The pedal sounds amazing! with the distortion low, you get a smooth crunch with your clean signal, and turned up you get a nasty fuzz that's still got a clear tone underneath it so it doesn't sound muddy. Awesome! Easy to build, but I solder for work so I'm not a good judge on difficulty.

Purchased item:

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