Moon Phaser
Who doesn't like a bit of phase fun? Yeah, not many hands up. Who likes sorting through a shed load of FETs to match them up to get that phasing fun to work? Still no hands. Of course, we do the hard FET-matching work for you here at FDHQ anyway, but here's a nice phaser that does all the magic with OTAs instead of FETs. No matching, no biasing - it just works...
There's a whole lot of circuit to cram into a 1590B, so we've had to design the PCB for 3mm resistors. They're a bit fiddly, but needs must. You can use standard 6mm resistors if you're happy to mount them vertically. There's no shame in that.
Four pots control your Speed, Depth, Resonance and Sweep. Your Rate toggle switch selects between fast, slow and none, the latter giving you a fixed resonant filter. The second toggle selects Phaser or Vibe mod, the latter cutting the dry signal altogether. In this mode the Depth pot acts as a volume control.
All in all a very satisfying phaser without the fiddly fuss.
The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.
If you want the PCB without parts there's a link for that at the bottom of the page.
Partial kit: PCB, all board-mounted components, 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 available as an optio with full kits, and will not take a battery. Knobs are not included.
Inspired by: Grand Orbiter
Difficulty: Medium
PCB size: 50 x 58mm
Knobs required: 4
Enclosure: 1590B
Direct-Connect compatible (4-way)
Download the INSTRUCTION PDF
MoonPh
Pedal Parts
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