Duo-Phase kit

This is a great sounding and powerful phaser with many options.I give this four stars because of issues I had with the board.The build went smoothly,but the light source LEDS didnt light.The indicator LEDS have the long leg of the LEDS go in the the square pads,like the electrolytic caps,but it turns out the light source LEDS the long leg should go in the round pad.This should be mentioned in the instructions.Then when i unsoldered them a couple of pads and a trace lifted.I had to run 2 jumpers to get it to work.the plating on the board seems thinner than normal.Also the is no room for light shields.I used black tape,it works,but there should be room for light shields.I mentioned this to the maker of the board and they said that future versions will address this and the LED issue.The predrilled enclosure came with 4 jack holes but only 2 jacks come with the kit.this is still a great kit anyway.thanks to musikding for making kits like this available.

STEVE M., 01.05.2019

It sound so good, really good project, its like the mutron bi-phase but in this wiring diagram the phasor B goes into the phasor A, so if you want the original mutron phasor order you have to wire the first input Jack mono to phasor A-input than switch Jack output A into phasor B-input Jack

nicola c., 03.01.2021

Very good toned phaser and fairly easy to build. only the holes in the leds were in a slightly wrong place in my opinion.

Esa R., 23.02.2021

A close to perfect kit. The PCB is compact - perfect for fitting in the box and making a small pedal. I followed my own advice and double checked everything while building (took 4-5 hours total approximately, spread over a few evenings). Pedal worked right from the start. A wonderful thing to have this replica of an _extremely_ rare phaser pedal. The sound was wonderful! :D

Heres my Instagram post of the finished thing: https://www.instagram.com/p/CeG_L0WDyuf/ (with sound)
And heres a link to Pedalspcb with more details: https://forum.pedalpcb.com/threads/duo-phase-build-panel-layout-and-lfo-mod-question.11906/
In the PedalPcb I included my front and side layouts too.

More details on trimming, comments on colors of LEDs would be on the wishlist for possible updated information on the pedal - but the kit itself is a clear 5-star kit.


Comment, on a more general note on building complex machines: there are a lot of components and I would suggest great care when mounting them all. Think like this: Resoldering _is_ possible - but it will take 10 x time. At least. So measure everything. Double check everything. Use sockets!

Addition: I recommend using shielded wire from the inputs to the switches, it only needs to be grounded in one end. When I did this I had no problems at all. More details in the Forum-thread above.

Build it carefully and you will have a fantastic pedal at the fraction of the cost!

Jacob S., 03.06.2022