CA3080 4 Stages Phaser

I just love Electro-Harmonix phasers such as the Small Stone or the Electric Mistress..

I found these schematics to build a Small Stone replica using the CA3080 Operational Transconductance Amplifiers:

http://www.tonepad.com/project.asp?id=11

The build on a breadboard looks like this:

And the sound is great, here’s a demo using a great song by Adrian Nation, Five Fingers Rapid:

 

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