Phaze 90

Want phase? We got phase. 90 degrees of it.

Super swirly phaser action on a sweet footswitch-mounted PCB.

This board has a couple of options which you may find useful, you may not. FDHQ opinion is that one-knob simplicity is best, but we like to offer as much as possible:

  • Adjustable feedback - either an on-board trimmer or an external pot. Changes the nature of the effect from making it more subtle through to causing crazy oscillations.
  • Feedback-off switch - take out the signal feedback altogether. It's unlikely you'll find a bias setting that'll give good results with the feedback on AND off, so we don't really recommend this unless you want to play around with non-standard sounds.

The PCB has been designed so you can actually cut off the footswitch-mounting section and have a stand-alone 5cm square PCB, with power and signal pads that match the 3PDT Direct Connect Daughterboard. How's that for versatility?

Comes with a matched set of 4 FETs (2N5292 or 2N5457) that have been tested in an actual working circtuit, so you know they'll be good to go. Before you ask - no, the FETs aren't available without the kit.

Partial kit: PCB, all board-mounted components (not footswitch), pots.

Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.

Enclosure (pre-drilled) is only available with full kits, and will not take a battery. Knobs are not included.

Difficulty: Medium-hard

PCB size: 50 x 94mm

Knobs required: 1 or 2

Enclosure: 1590B


Phaze 90


£42.00 inc. tax

£35.00 ex. tax
? Tax based on United Kingdom.

Customer Reviews

4 review(s) posted (write review)
Phase 90 5 product stars
"I am very happy with FuzzDog and can only tell good about them. So far I built a SuperFuzz, an SFT, a SHO, an EA, another Trem, a MadMule, a Sqwisher and a Phase 90. All of them work great and sound great. Of course some of them I can t compare with the original (which is of course one of the reasons I need a clone) but who cares about authenticity if the pedals sound great anyway. If one compares schematics they all look like the originals. BTW, snatching one of your BOMs helped me modding one of my originals - Thanks for that too! The Phase 90 i needed because mine was broken due to my first modding attempt. Luckily, with a bit of conception, I could even fit the PCB into the original enclosure. I guess this is again thanks to their great designs. And yes, it sounds like my P90, maybe better." Matt - 06/10/2018
Phase, phase, phase 5 product stars
"Can the mounting of a pedal be easier? Had various Phase 90 clones and an original sitting somewhere that we replaced by PedalParts clone. Great, great sounding phase with the possibility of introducing mods. As always, great instructions, great quality parts, fun to build and great sounding." NiLace - 18/02/2017
Brilliant phasor. 5 product stars
"Very nice vintage sounding phasor ,used 5ok for trim 2, I only had a 4.7v zener and had ticking problems when I finally got the 5.1v, all was working perfectly ." Peter - 19/09/2016
Great Kit 5 product stars
"My second pedal parts build , very happy with it . Another great design , the way it mounts in the enclosure using the 3dpt switch is genius . Straight forward build . Only issue caused by my fault by not reading the instructions properly . But soon solved via helpful friendly email. Lesson learnt ! Read the manual ! Twice if not 10 times. Great sound lovely warm swirling phase . Very impressed and happy customer" simsrstuff - 21/02/2015

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Full kits DO NOT include enclosures unless you select them in the 'Kit Type' drop-down menu.

Don't forget to download the appropriate daughterboard build document for your kit:
Standard 3PDT