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ETI 447

Project 447 Audio Phaser

Other names for this product: ETI447,
Courtesy/Thanks to: Electronics Today International

Description: This is a six-stage phaser, that is quite easy to build, the original design uses uA741 OpAmps, but any standard opamp of today will be at least as good, probably much better.

from the article in ETI Sep 1976

This six-stage phaser can make your electric guitar sound really spacey. And costs less than thirty bucks to build.

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Files
eti447.pdf
   Article, schematics, pcb and parts lists for the ETI 447 Audio Phaser
Links
http://rubidium.dyndns.org/cag/
   CAG: CLONED ANALOG GEAR
Manufacturers
ETI
   Electronics Today International
Parts used
uA 741
   Frequency-compensated operational amplifier