
Key Points
Druzhkivka Grunge Distortion (PD #40) is a heavily modified homage to the DOD FX69, blending a DS-2–style discrete op-amp gain stage with a tweaked EQ and doubled clipping using a quad of NOS Soviet KD521 diodes for higher clipping threshold and more dynamics. Slider pots with built‑in LEDs replace rotary knobs for visual, precise control.
Forty units are available on the Drunk Beaver Rocks Webstore, priced at $175 / €175 / 649 PLN. This is a rapid‑prototyping release with referenced circuit inspirations included, and the post lists all 40 Pedal Drops to date.
By cool evolution we mean a DOD Grunge Distortion mixed with a DS-2 style gain stage instead of the Opamp, you get a tweaked EQ and a higher clipping threshold!
The Druzhkivka Grunge is Vitalii’s heavily modified homage to the infamous 90’s DOD FX69. He’s taken this classic high-gain distortion and radically evolved it for modern pedalboards, starting with a completely redesigned gain stage that utilizes a discrete op-amp architecture — similar to the beloved DS-2 — for a more dynamic and responsive feel.
To open up the distortion and breathe more life into the circuit, the clipping section has been doubled, utilizing a quad setup of NOS Soviet KD521 diodes instead of the standard pair. Then combined with a meticulously tweaked EQ section, this pedal delivers a highly usable, roaring 90’s tone.
To top it all off with style, the traditional rotary knobs have been replaced by four slider potentiometers - featuring built-in LEDs, giving you precise, highly visual control over your sound.
40 units will be available as soon as you see this post - they go for $175 / €175 / 649 PLN on the Drunk Beaver Rocks Webstore.
As usual, this is a rapid-prototyping project which has no time for demos - so for this occasions I have references for each of the circuits which inspired this particular design!
Note that further below you get the full list and picture of all 40 Pedal Drops to-date!


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