The Voodoo Doll Vibe Tremolo Gold Rush Edition is a one-off version of the GUP Tech Voodoo Doll Vibe, a tremolo-vibe pedal from Canadian maker GUPtech. GUPtech describes the pedal as "a real analog photocell Tremolo-Vibe Machine", meaning the sweeping effect is produced by light-dependent cells driven entirely by analog circuitry, rather than by a digital chip12. The Gold Rush Edition carries "exactly the same circuit as the original GUPtech VD", according to the maker, but it is housed in a unique gold-colored box, and GUPtech states that "only one will ever exist"3.
What the Voodoo Doll does
The Voodoo Doll sits in the territory covered by tremolo pedals and vibe effects: it modulates the volume and character of the signal with a repeating sweep. Because the modulation is photocell based, the LFO drives light against light-sensitive resistors, an approach long associated with the warm, slightly uneven motion of vintage vibe units. GUPtech emphasizes the point twice on its product pages, calling it "fully analog Photocell/light" and "a real 100% analog photocell Vibe-Tremolo Machine"21.
The pedal gives the player what GUPtech calls "complete control over Depth, Speed, level and also Low/High frequencies"2. The Low and High controls shape the tone of the effect, which is unusual on a pedal at this size and price.
Versions and colors
GUPtech has built the Voodoo Doll in two versions:
- V1: the original layout, with the Lo-Hi knobs2
- V2: a four-knob version that GUPtech describes as "a simpler design, easier to build with us", with "nothing widely different" from the V12
The Gold Rush Edition is a Vibe Tremolo pedal from GUPtech, built with exactly the same circuit as the original GUPtech Voodoo Doll3.
The Gold Rush Edition is a single unit. GUPtech states that only one will ever exist, so it will not be produced again3. The regular Voodoo Doll remains the way to get the circuit, which is exactly the same as the one in the Gold Rush Edition21.
Where it is made
GUPtech builds its pedals in Saguenay, Québec, Canada. The maker states plainly: "All of our pedals are made by us in Saguenay, Québec, Canada"3. The regular Voodoo Doll can also be picked up at the GUP Tech shop at 6182 Boulevard Talbot, Saguenay QC, usually ready within 24 hours2.
How the Gold Rush Edition differs
In sound and circuitry, it does not. GUPtech's own description is that it is "exactly the same circuit as the original GUPtech VD, in a unique Gold box"3. The difference is the enclosure and the fact that it is a single piece, listed at £109.00 GBP on the maker's page3. For players comparing optical and photocell modulation designs elsewhere on the market, the Flower Pedals Dandelion Tremolo V2 is a related analog optical tremolo, though it pairs its analog audio path with digital controls4.
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Michael Shapinko
Questions
Is the Gold Rush Edition different from the regular Voodoo Doll?
Only in its box. GUPtech says the Gold Rush Edition has exactly the same circuit as the original Voodoo Doll, housed in a unique gold enclosure, and that only one will ever exist. Controls, circuit topology and the analog photocell design are the same as the regular pedal3.
Where is the GUPtech Voodoo Doll made?
GUPtech makes all of its pedals itself in Saguenay, Québec, Canada. The regular Voodoo Doll can also be collected in person at the GUP Tech shop in Saguenay, usually ready within 24 hours of ordering321.
Is the GUPtech Voodoo Doll Gold Rush Edition still available?
No. GUPtech states that only one unit will ever exist, so it will not be produced again. The regular Voodoo Doll Vibe Tremolo uses exactly the same circuit as the Gold Rush Edition, so that version remains the way to get the circuit321.
What colors does the Voodoo Doll Vibe Tremolo come in?
The regular Voodoo Doll Vibe Tremolo has been offered in Yellow and Green. The Gold Rush Edition is a one-off in a unique gold box23.
Sources (4)
- Voodoo Doll Vibe Douche, GUP Tech (guptech.ca)
- Voodoo Doll Vibe Tremolo, GUP Tech
- Voodoo Doll Vibe Tremolo, GUPtech (guptech.ca)
- Dandelion Tremolo V2 by Flower Pedals, RockBoard PedalPedia, 2026
