an easy to build FUZZ

this one here's an adaptation of P. Hemmo's modern Bazz Fuss fuzz. low parts count, massive tones. you can swap out the output cap with a 1uF cap for more low end.

NOTE: to use the PCB, right click on the PCB image and paste onto a blank document. print to a white paper. copy to a photopaper using a laser copier.

 

An ENVELOPE FILTER project

Ah, the good old envelope filters, expressive little boxes of wah-wah goodness without the treadles. Basically, the envelope filter sweeps a certain range of boosted frequencies that is triggered by detected envelope of a string's initial attack. Pretty nifty.

The following is the Nurse Quacky project (which is a bit tweaked EHX/Dr. Q circuit). Original circuit by the good guys of Home-wrecker.

THE SCHEMATIC (click for larger image)

THE PCB [note: to use the pcb, right click on the pcb image and paste onto a blank Word sheet. Print a copy, and photocopy that print into a photopaper.]

THE PARTS AND LAYOUT (click for larger)

the parts list:

Part        Value         

C1          10nF          

C2          10nF          

C3          4.7nF         

C4          4.7nF

C5          100nF      

C6          22uF          

C7          47uF          

C8          100uF         

C9          1nF           

D1          LED5MM        

D2          LED5MM        

D3          IN4002         

IC1         LM358         

Q1          2N3904        

R1          47K           

R2          47K           

R3          470K         

R4          470K          

R5          47K           

R6          10K           

R7          3M3           

R8          51             

R9          220           

R10         470K          

R11         22K           

R12         27K           

R13         27K           

R14         100           

RANGE       B25K          

SENSITIVITY B100K         

ATTACK         B1K            



(this project is for personal use only. not for sale or commercial use. all rights reserved by the owner.)

PSYCHE1: A simple VIBE pedal project

The following is a simple Vibe pedal project consisting of a unity gain stage and an oscillator driving an LED (light emitting diode) and LDR (light-dependent resistor) to generate a single stage 180degree phase shift.

I omitted a depth control since it has fairly minimal use, but you may opt to install one just the same: simply use a 25K potentiometer in place of the 30K bias trimmer.

Its effect is very subtle, and many like the circuit for this characteristic, as opposed to the usual balls-to-the-wall effects that some use.

(note: to use the pcb, right click on the image and paste onto an empty Word document, and print out.)

 

This project is for personal use only, not for sale or any other commercial use. Alterations to the original image is infringement.

BUFFER

Any guitarist or bassist will definitely benefit from having a buffer. I'm too stumped to write technical stuff about buffers, so here are links instead:

What’s the Big Deal About True Bypass?

By DAVE HUNTER

Thu, 13 Dec 2012

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The phrase “true bypass” has become a watchword for the pedal industry, and it’s high on most buyers’ lists of priorities. But is true bypass as essential a feature as so many pedal makers would have us believe? True bypass, aka “hardwired bypass,” occurs when the input of an effect is wired directly to the output via the on/off switch when it’s in the “off” position, rather than being routed through (or connected to) part of the circuitry the entire time.

read more here,
http://www.guitarplayer.com/article/what%E2%80%99s-the-big-deal-about-true-bypass/150189


Let's build one.

(note: right click on the PCB image and paste onto empty Word document for printing.)

THAT'S IT!

This project is for personal use only, not for sale or any other commercial use. Alterations to the original image is infringement.

Starting Out

in 2 weeks' time, i'll be posting effects projects for guitars on this blog. so stay tuned!