Alchemy Audio

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Alchemy Audio Alchemy Audio builds, repairs and modifies guitar effects pedals, and amplifiers. We also buy, sell and trade gear! We are located in Minneapolis, MN.

Alchemy Audio builds, repairs and modifies guitar effects pedals, microphones and amplifiers - both vintage and modern. Our commitment to exceptional customer service and quality craftsmanship has created a growing legion of satisfied customers around the world. Feel free to contact us via phone, email, carrier pigeon
or telegraph to discuss your needs.

Whew! This build is not for those with a heart condition, shaky hands or low patience.This faithful adaptation of the Un...
09/25/2026

Whew! This build is not for those with a heart condition, shaky hands or low patience.
This faithful adaptation of the Univox Uni-Vibe really nails those syrupy, pulsing chorus & vibe effects.
Kudos to Aion FX for the excellent circuit and build instructions!🙌
This one is going out to a customer but I have another available. You can still choose your LED / k**b colors! DM for pricing.

Here what the inside of a passive direct box looks like. This one needed a new transformer. Good for another 30 years!
09/03/2026

Here what the inside of a passive direct box looks like. This one needed a new transformer. Good for another 30 years!

Often, the worse the pedal looks, the better it sounds. Case in point.••••••
08/18/2026

Often, the worse the pedal looks, the better it sounds. Case in point.
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Although I lack space in my humble shop to service amplifiers on a regular basis, I always enjoy upgrading these Fender ...
08/12/2026

Although I lack space in my humble shop to service amplifiers on a regular basis, I always enjoy upgrading these Fender Champion 600’s. In addition to carefully chosen circuit mods, we install a better output transformer, a more breathable grill cloth, premium vacuum tubes and a high quality Weber speaker. The results are astonishing. I would put this up against amps five times the price. I wonder if Jeff Tweedy uses his.
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I think I see what the problem is on this Midas DL32 stage box…
08/04/2026

I think I see what the problem is on this Midas DL32 stage box…

I wonder if the folks at ProCo regret using these absolute garbage pots in their more recent Rat variant. Even after app...
07/24/2026

I wonder if the folks at ProCo regret using these absolute garbage pots in their more recent Rat variant. Even after applying gentle heat, these things break. Luckily, better quality replacements are available and this will live to rock another day.

First time modifying one of the signature Big M**f (Ram’s Head) versions. I’m a fan!
07/15/2026

First time modifying one of the signature Big M**f (Ram’s Head) versions. I’m a fan!

Our modification service for the Ibanez TS9 Tube Screamer adds vintage NOS composite film resistors to the circuit for t...
07/14/2026

Our modification service for the Ibanez TS9 Tube Screamer adds vintage NOS composite film resistors to the circuit for the 808 spec mod. We also add a relay-based true bypass circuit and a boost - which can be used together or independently from the Tube Screamer. It’s a labor-intensive mod to do correctly but the results are worth it!

Here’s the latest project from the bench: “always on” secret preamp style boost. This guy is subtle but packs a punch. I...
06/29/2026

Here’s the latest project from the bench: “always on” secret preamp style boost. This guy is subtle but packs a punch. If you know what the term “underdrive” is, you’ll know this pedal is the secret sauce for taking your tone to the next sweet level. Interested? dam for details.
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Rarely do I offer up complete, modified pedals these days. However, I had this ProCo Rat sitting in the shop and I decid...
06/25/2026

Rarely do I offer up complete, modified pedals these days. However, I had this ProCo Rat sitting in the shop and I decided to give it the full mod treatment. Circuit mods for improve bass, smoother gain and quieter operation. ‘Dead Bat’ dying 9V battery simulator. Diode clipping toggle switch. Upgraded k**bs and bright blue LED. DM if you are interested.
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Minneapolis, MN

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