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Table of Contents
NomNom
NomNom
F
MODULATION
X Type:
Build Level: Intermediate
Based On: MXR® Phase90™
The Phase 90™ is the parent and more grandiose version of the Phase45™. It is the quintessential
analog guitar phaser sound. The effect is produced by mixing a guitar clean and phase modulated
signals. An simple LFO drives four phase stages which are controlled by JFETs used as variable
resistors.
The NomNom version of the Phase90™ includes a couple of mods to offer additional tonal
variations, namely a Voice switch and Color potentiometer.
This project requires four matched JFET transistors. See the Build Notes for more details.
•
SPEED: Modulation rate.
•
VOICE: Selects between the stock phase caps and an alternate set.
•
COLOR: The control sets the amount of feedback in the phaser circuit. Higher feedback
equates to increased intensity in the phase effect. The highest setting has some mild distortion
which some players like.
•
T1: This trimmer is used to calibrate the modulation effect.
Phase 90 analysis by Electro-Smash:
GEOFEX Technology of Phase Shifters:
Terms of Use:
You are free to use purchased NomNom circuit boards for both DIY and small commercial operations. You may not offer NomNom PCBs for
resale or as part of a "kit" in a commercial fashion. Peer to peer re-sale is fine, though.
Technical assistance
for is available via the
available to respond via email in a timely and continuous manner, and (2) posting technical problems and solutions in the forum creates a record from which other
members may benefit.
All copyrights and registered trademarks are property of their original owners. Any mention of trademarked or intellectual properties in this documents is purely for
comparative purposes.
Overview
Controls
https://www.electrosmash.com/mxr-phase90
http://www.geofex.com/Article_Folders/phasers/phase.html
madbeanpedals
forum. Please go there rather than emailing me for personal assistance. This is because (1) I'm not always
Last Updated:
July 21, 2024 6:11 PM
© 2024
madbeanpedals
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Table of Contents
Related Manuals for madbeanpedals Phase 90 NomNom
Summary of Contents for madbeanpedals Phase 90 NomNom
- Page 1 Last Updated: July 21, 2024 6:11 PM Build Level: Intermediate © 2024 madbeanpedals Based On: MXR® Phase90™ Overview The Phase 90™ is the parent and more grandiose version of the Phase45™. It is the quintessential analog guitar phaser sound. The effect is produced by mixing a guitar clean and phase modulated signals.
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Page 2: Parts Layout
Parts Layout NomNom pg. 2... -
Page 3: Component Values
Component Values NomNom pg. 3... - Page 4 Trace Layout NomNom pg. 4...
- Page 5 Wiring Unless otherwise noted, all Standard Series projects have the same wiring regardless of which 3PDT bypass board is used. A 6-pin, 2” ribbon cable is recommended for soldering the connections between the two PCBs. NomNom pg. 5...
- Page 6 B.O.M. Resistors Caps Diodes 1n5817 470k 5.1v Zener 150k Transistors 150k 2N5087 2N5952 150k 2N5952 2N5952 15uF 2N5952 100uF TL072 100n TL074 Switch 22uF VOICE On/On 220n Trimmer 250k Pots COLOR 100kC 500kC 150k 150k 470k 150k NomNom pg. 6...
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Page 7: Shopping List
Shopping List Values Type Rating Carbon / Metal Film 1/4W Carbon / Metal Film 1/4W Carbon / Metal Film 1/4W Carbon / Metal Film 1/4W Carbon / Metal Film 1/4W 150k Carbon / Metal Film 1/4W 470k Carbon / Metal Film 1/4W Carbon / Metal Film 1/4W... - Page 8 Build Notes Transistors • The NomNom requires the 2n5952 transistors to be matched for the phaser effect to work properly. While you may be able to stick four random JFETS in there and get lucky, the best result comes from matching the cutoff voltages for the transistors as closely as possible.
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Page 9: Circuit Voltages
Circuit Voltages TL072 2n5087 4.32 2.65 4.32 3.77 4.15 4.32 2n5952 varies 4.32 varies 4.32 varies varies 9.24 2n5952 TL074 4.32 4.32 4.32 4.32 varies 4.32 2n5952 9.24 4.32 4.32 4.32 4.32 varies 4.32 2n5952 4.32 4.32 4.32 4.32 4.32 varies 4.32 4.32... - Page 10 1590B Drill Template Coordinates are denoted in (X,Y), drill size format starting from the center (0,0) location of the enclosure. Link to Tayda Standard Series master drill template Hardware 1590B enclosure Lumberg 1/4” Compact mono jacks Slim 2.1mm DC jack Standard 3PDT footswitch 5mm LED NOTE: Different 1/4”...
- Page 11 Build Pic NomNom pg. 11...
- Page 12 Schematic NomNom pg. 12...
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