Martians Phaser (Duo Phase)

steviejr92

Authorized Vendor
Hello everyone!

So I just finished up the Duo phase, and man oh man there's a reason why its everyones favorite. Jet lag initiated.... 🛫
This circuit is based on the famous Mutron Bi Phase. A dual phaser that most say is the best in the world. With that kind of praise this was something i had to experience. This circuit does not disappoint in any way shape or form. As soon are you turn it on you're greeted with lush wooshes and highly tweakable swooshes ;) A must have for any pedal enthusiast! I built this as a present for my brothers Bday. He's going to love it!

So as for the build, this thing is HUGE. 15 ICs, a crap ton of resistors, caps, you name it. Get ready to have some of your component capacities strained on this one. I approached this build a little different. Usually the order in which i solder my resistors is i would just solder the next value resistor on the board. This time i completed soldering all the same values first before moving on to the next. This decreased my chances of mixing the 4k7 and 47K resistors in confusion. I would highly suggest taking your time on this one. I ran out of 220K resistors and ended up making some teepees to make up for them. I also had to improvise with the 470nf caps. The ones i have are huge for whatever reason haha

Earlier today i had to troubleshoot this guy. There was an annoying LFO tick going on when the pedal was engaged and the rate knob would only make it worse. After @DGWVI and @Betty Wont helped me with awesome suggestions i found out that having a buffer in front of it killed the tick. I decided to use a buffer board that can be purchased here at the store. I put it in the first input (b side). The ticking persisted till i tightened the rate knob with a washer and nut. I cant explain this one but it stopped and the pedal is working fine.

All in all this pedal is awesome! I will definitely make another one but this time with the mods that @DGWVI recently did to his phaser. Which would be to make the internal pots external. There is no bad setting with the trimmers. I ended up setting the B side a little slower than the A side. The result is a phaser that is crazy tweakable when using all 12 phases. 5 out of 5 for me! Highly recommended!


PS. Can we have a moment of silence for my components that didnt make it?




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Hello everyone!

So I just finished up the Duo phase, and man oh man there's a reason why its everyones favorite. Jet lag initiated.... 🛫
This circuit is based on the famous Mutron Bi Phase. A dual phaser that most say is the best in the world. With that kind of praise this was something i had to experience. This circuit does not disappoint in any way shape or form. As soon are you turn it on you're greeted with lush wooshes and highly tweakable swooshes ;) A must have for any pedal enthusiast! I built this as a present for my brothers Bday. He's going to love it!

So as for the build, this thing is HUGE. 15 ICs, a crap ton of resistors, caps, you name it. Get ready to have some of your component capacities strained on this one. I approached this build a little different. Usually the order in which i solder my resistors is i would just solder the next value resistor on the board. This time i completed soldering all the same values first before moving on to the next. This allowed decreased my chances of mixing the 4k7 and 47K resistors in confusion. I would highly suggest taking your time on this one. I ran out of 220K resistors and ended up making some teepees to make up for them. I also had to improvise with the 470nf caps. The ones i have are huge for whatever reason haha

Earlier today i had to troubleshoot this guy. There was an annoying LFO tick going on when the pedal was engaged and the rate knob would only make it worse. After @DGWVI and @Betty Wont helped me with awesome suggestions i found out that having a buffer in front of it killed the tick. I decided to use a buffer board that an be purchased here at the store. I put it in the first input (b side). The ticking persisted till i tightened the rate knob with a washer and nut. I cant explain this one but it stopped and the pedal is working fine.

All in all this pedal is awesome! I will definitely make another one but this time with the mods that @DGWVI recently did to his phaser. Which would be to make the internal pots external. There is no bad setting with the trimmers. I ended up setting the B side a little slower than the A side. The result is a phaser that is crazy tweakable when using all 12 phases. 5 out of 5 for me! Highly recommended!


PS. Can we have a moment of silence for my components that didnt make it?




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That enclosure turned out bad ass!

Their sacrifice will not be forgotten
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I read "Martins Phaser" and thought "Man, that Martin is a lucky guy." 🤣

That looks fantastic!
Thank you sir! In this case Martin would be Steve...yes me and me brother are both Steve.... :ROFLMAO: :rolleyes:

Great job - this is one of my all time phavorite phasers... :D
Thank you so much! I can see why, I think i can see that too now that I've experienced it! I will be building another with the mods i mentioned above. There is literally no bad setting on this thing!
 
Great job - this is one of my all time phavorite phasers... :D
I feel like those of us on this forum that sing
it's praises are going to be responsible for a wave of YAPIIs on the boutique front 😅. Just need to send one of us with a knack for selling snake oil to TGP

Thank you so much! I can see why, I think i can see that too now that I've experienced it! I will be building another with the mods i mentioned above. There is literally no bad setting on this thing!

It's seriously THE phaser.

Well, there's the Polyphase /Polytrog. But those are the phasers
 
I have to look into this! This pedal has made me want to build as many as possible!
For swept phasers, the Phasor II derivatives can't be beat. The Glass Hole won't be leaving my board anytime soon. Well... This DuoPhase on my bench might kick it off, as I usually just keep the GH on the six stage setting.

The Polytrog excels at the envelope phaser thing. Sorta walks the line between phaser and Autowah kinda sounds. It's swept mode sounds great, but the envelope side is where it shines. And that can be blended with the LFO which leads to some dynamic, swooshing, bubbly textures
 
For swept phasers, the Phasor II derivatives can't be beat. The Glass Hole won't be leaving my board anytime soon. Well... This DuoPhase on my bench might kick it off, as I usually just keep the GH on the six stage setting.

The Polytrog excels at the envelope phaser thing. Sorta walks the line between phaser and Autowah kinda sounds. It's swept mode sounds great, but the envelope side is where it shines. And that can be blended with the LFO which leads to some dynamic, swooshing, bubbly textures
Well i know what im adding to my next order 🤘 :cool:
 
These have been my biggest sellers for years until recently. Now I can't give them away. Either I flooded my own market or y'all be selling. Lol.
'Twasn't I. I build maybe one a year, except on commission, which I think I've only done two of.

We gotta find some stupid expensive LED to jack up the mojo and hype or something.
Maybe integrate @jhaneyzz rad marble idea into the LDR setup somehow. Something about how the molten globule of glass forms a sacred and unbreakable crystal lattice that diffracts the light on a anti-parallel tri-helical fashion around the dark matter that exists only when the bottom plate screws are tightened to an exact 4.671934 lb-in. And one of the LDRs needs to be just a literal solid chunk of unrefined cadmium
 
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