Akashic Guitar effects circuit lookup
SUSTAINTONEVOLUME

1590A · 3 knobs

Effects Layouts (blog)

Electro Harmonix Big Muff - 1590aVerified

Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it

Category
Distortion
Controls
Sustain · Tone · Volume
Build
Perfboard
Layout
Verified · Effects Layouts (blog) marks it as built and working
Tags
Distortion, Electro Harmonix, Fuzz
Open the layout at Effects Layouts (blog) Kit Rae schematics

From the post

Let's wrap up this 1590a week with one of the mightiest fuzzes of all time–the Big Muff. For this one, I've labeled all the components to correspond with the component names on Kit Rae schematics, so find an EHX version on there and populate the board accordingly. This probably won't work for some of the more modified, non-EHX Muffs, just fair warning. Polarity protection and power filtering have been added, as has a pull down resistor at in put. It's labeled as "PDR" on the layout and would typically be 1-2M. The resistor labeled "CLR" is the current limiting resistor for the LED, and can be anything from 2.2k to 10k.

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.

Parts list 50 rows

Report a wrong parse

Got parts in a drawer? See what you can build with them.

RefValueNormalizedTypeNotes
Resistors 24
R2??value not given; legend says see Kit Rae schematics; read from the layout by eye
R3??value not given; legend says see Kit Rae schematics; read from the layout by eye
R4??value not given; legend says see Kit Rae schematics; read from the layout by eye
R5??value not given; legend says see Kit Rae schematics; read from the layout by eye
R6??value not given; legend says see Kit Rae schematics; read from the layout by eye
R7??value not given; legend says see Kit Rae schematics; read from the layout by eye
R8??value not given; legend says see Kit Rae schematics; read from the layout by eye
R9??value not given; legend says see Kit Rae schematics; read from the layout by eye
R10??value not given; legend says see Kit Rae schematics; read from the layout by eye
R11??value not given; legend says see Kit Rae schematics; read from the layout by eye
R12??value not given; legend says see Kit Rae schematics; read from the layout by eye
R13??value not given; legend says see Kit Rae schematics; read from the layout by eye
R14??value not given; legend says see Kit Rae schematics; read from the layout by eye
R15??value not given; legend says see Kit Rae schematics; read from the layout by eye
R16??value not given; legend says see Kit Rae schematics; read from the layout by eye
R17??value not given; legend says see Kit Rae schematics; read from the layout by eye
R18??value not given; legend says see Kit Rae schematics; read from the layout by eye
R19??value not given; legend says see Kit Rae schematics; read from the layout by eye
R20??value not given; legend says see Kit Rae schematics; read from the layout by eye
R21??value not given; legend says see Kit Rae schematics; read from the layout by eye
R22??value not given; legend says see Kit Rae schematics; read from the layout by eye
R23??value not given; legend says see Kit Rae schematics; read from the layout by eye
PDR??pulldown resistor, value not given; read from the layout by eye
×1??LED resistor, value not given; read from the layout by eye
Capacitors 14
C1??value not given; legend says see Kit Rae schematics; read from the layout by eye
C2??value not given; legend says see Kit Rae schematics; read from the layout by eye
C3??value not given; legend says see Kit Rae schematics; read from the layout by eye
C4??value not given; legend says see Kit Rae schematics; read from the layout by eye
C5??value not given; legend says see Kit Rae schematics; read from the layout by eye
C6??value not given; legend says see Kit Rae schematics; read from the layout by eye
C7??value not given; legend says see Kit Rae schematics; read from the layout by eye
C8??value not given; legend says see Kit Rae schematics; read from the layout by eye
C9??value not given; legend says see Kit Rae schematics; read from the layout by eye
C10??value not given; legend says see Kit Rae schematics; read from the layout by eye
C11??value not given; legend says see Kit Rae schematics; read from the layout by eye
C12??value not given; legend says see Kit Rae schematics; read from the layout by eye
C13??value not given; legend says see Kit Rae schematics; read from the layout by eye
×147uF47uelectrolytic; read from the layout by eye
Diodes 5
D1??value not given; read from the layout by eye
D2??value not given; read from the layout by eye
D3??value not given; read from the layout by eye
D4??value not given; read from the layout by eye
×11N40011N4001polarity protection; read from the layout by eye
Transistors 4
Q1??value not given; read from the layout by eye
Q2??value not given; read from the layout by eye
Q3??value not given; read from the layout by eye
Q4??value not given; read from the layout by eye
Potentiometers 3
Sustain??Potentiometervalue not given; read from the layout by eye
Tone??Potentiometervalue not given; read from the layout by eye
Volume??Potentiometervalue not given; read from the layout by eye

Other boards based on the Electro-Harmonix Big Muff Pi