R.A. Penfold, Phaser Sound Effect, Everyday Electronics, January 1981 🇬🇧

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modman
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Post by modman »

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BMS1971
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Post by BMS1971 »

I just tried the LFO part... My god! It's really great! So simple but works so nice, the 3 diodes makes the signal perfect for LED/Lamp drive. I will probably use it on MANY of my designs now. Highly recommended
Ben

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Frank_NH
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Post by Frank_NH »

This is a neat circuit. I'd like to try building it someday on a breadboard and experiment with different LDRs. I suppose optical phasers have a different tonal texture than jfet-based phasers like the MXR Phase 90?

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BMS1971
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Post by BMS1971 »

Frank_NH wrote: 16 Jan 2023, 19:07 This is a neat circuit. I'd like to try building it someday on a breadboard and experiment with different LDRs. I suppose optical phasers have a different tonal texture than jfet-based phasers like the MXR Phase 90?
Yes they do. I prefer optical ones generally.
Benoît

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Post by Frank_NH »

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The MXR Phase 100 is an optical phaser and its circuit is loosely similar to the Penrose design; it has additional stages and a different LFO but its use of LDRs is the same.

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