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AMZ is a resource with information about diy guitar effects pedals, stompboxes, audio circuits and tips on how to build them. There are fuzzbox schematics, signal booster projects, audio mixers and much more available free. Take some time to browse the site and discover information that can help you with your next DIY effects pedal project. You might decide to build your own clone of a classic!

AMZ Mini-Booster moduleBrowse the free pedal building info in the Projects section, the Lab Notebook, the Guitar FX blog or many of the links in the left column. Enjoy!

PC Boards are available for purchase for many of my projects, including the AMZ Mosfet Booster, Mini-Booster, SOS overdrive, dpdt relay switch, power supply pcb and more!

Latest posts from the AMZ blog page:

  • Jfet Buffer Module
  • This is a pre-assembled jfet buffer. It has a clean, transparent sound and can be used in numerous ways on your pedalboard or even us ...<more>

  • 6 Reasons Guitar Pedals Pop When Switched
  • 6 Reasons Guitar Pedals Pop When Switched It is a common complaint that guitar effects pedals make a pop or click sound when the byp ...<more>

  • Mosfet Booster Module in 1590A
  • I installed one of the Mosfet Booster modules in a small 1590A enclosure to make a tiny clean boost pedal. More info on the mosf ...<more>

  • Can You Patent Guitar Effects?
  • I often read posts on the pedal forums that claim that guitar effects circuits cannot be patented. The truth is that they certainly c ...<more>

  • Mosfet Booster Modules
  • Pre-assembled AMZ Mosfet Booster modules are here and I'm excited about them. I connected up a module last night and did some bench t ...<more>

  • Mini-Booster Modules
  • Pre-assembled Mini-Boosters now available for purchase. These are pc boards with all parts installed. No worries about hard-to- ...<more>

  • Keeley Oxblood
  • New Pedal Day! Jamming on my Oxblood Overdrive while wearing my Keeley Electronics t-shirt: ...<more>

  • Gear Guys Radio Show
  • Woohoo! Got a shoutout from Robert Keeley on a recent episode of Gear Guys Radio! Thanks, RK! Update: Also got some props on RK's ...<more>

Some of the projects that can be made with the AMZ pc boards:

  • Jfet mu-follower boost
  • Mosfet booster pedal
  • Guitar Direct Box
  • Dual Output Booster
  • Boost and Buffer
  • Dual Buffer
  • Re-amplifying Interface
  • Silicon Transistor Booster
  • AMZ Muffer
  • AMZ Muffmaster
  • A Dirty Boost
  • AC128 Germanium Transistor Booster
  • PNP Rangemaster-type Treble Booster
  • Germanium Transistor Buffer
  • Jfet Transistor Booster
  • Jfet Transistor Buffer/Line Driver
  • Mosfet Transistor Booster (not the AMZ Mosfet Booster)
  • Mosfet Buffer
  • Power Supply Filter
  • 9v-to-18v charge pump
  • True Bypass Relay System
  • and more!

NOS AC128 transistor GERMANIUM TRANSISTORS: I have plenty of the 2N1309 and 2N404 germanium transistors, fully tested and guaranteed. They work great in fuzz or booster circuits. Order a pair before they are gone.


Quick Links to AMZ Content
•   Technology of the Mini-Booster
•   The Case Against True Bypass?
•   Is it Legal to Clone?
•   How to wire a DPDT Switch
•   Fretboard Care
•   My Homebuilt AX84 Amp
•   Free Soundcard Oscilloscopes!
•   How to Solder
•   Dr. Quack, Mosfet Boost, Mini-Booster and more!
•   Capacitor FAQ
•   Info About Copyrights
•   AMZ Sitemap

Update - Read about the history of the AMZ Mini-Booster circuit, its origins, and pre-Internet status.

NEW ARTICLES! Bypassing the BMP tone control is a new article in the Lab Notebook section of the site. The Double Tone Control, Tone Clippers and the basics of Pedal Impedance are also recent additions.

The Mosfet Booster, Mini-Booster, Overdrive Pro, Shaka 5 and other complete, ready-to-build guitar effects are located on the AMZ Projects page. Top quality and Excellent sound is Guaranteed. Build one today!

Is it Okay to Clone? Get the info about circuit cloning and copycat pedals!

The Q&D Compressor articles are still available here but the SSM2166 chips are sold out.

The previous AMZ home page is still available as it contained a few links not on this revised version.

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AMZ Effects Projects
PC boards for boosters,
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AMZ Big Muff and Rat ebook
A Close Look at The Big Muff and Proco Rat
by Jack Orman
Our Price: $7.00
Availability: Usually ships within 24 hours. 14 pages (Nov 2001) - sent via email!
Big Muff pedals
Big Muff Pi Distortion

by Electro-Harmonix
List Price: $116.00
Our Price: $76.99
You Save: $39.01 (34%)
Availability: Usually ships in 1-2 days
AMZ mini-booster schematics
Analog Music Projects v1.1; Mini-booster Issue

by Jack Orman
Our Price: $12.00
Availability: Usually ships within 24 hours. 20 pages (Feb 2001)

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