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Friday, December 11, 2015

FuzzHugger FX Phantom Octave

The Phantom Octave is an octave/ring mod type fuzz that's very interactive with guitar pickup selection and volume/tone controls. The LED pads are for the one that's under the knob in the video below. You could use it as the on/off indicator, but it might be hard to tell if it's on when signal isn't passing through it. Should be able to squeeze it in a 1590A. From the manufacturer:

Equal parts mysterious and ghastly, the Phantom Octave is a shape-shifting octave fuzz 
monster! No controls? They're not necessary--they're at your fingertips! The Phantom Octave is 
extremely interactive with your pickup selection, picking intensity, and your guitar's Tone 
control. Like its namesake, the octave will disappear with picking intensity and by rolling back 
your guitar's Tone control. Octave effect is strongest with low-output single coil pickups.




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23 comments:

  1. TeddeehJuly 15, 2016 at 5:20 PM

    Hi, built this tonight and im getting nothing from the circuit. No noise nothing.

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  2. UnknownSeptember 15, 2016 at 7:04 AM

    Hi, I built this and it didn't work properly, not much/any? octave and the light not lighting up. I made the circuit again on the bread board and found I got better results if the diode going to pin 2 was the other way round. The light works and there is a clear octave down. Could the diode in the layout be backwards?

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  3. UnknownSeptember 15, 2016 at 7:25 AM

    I found another layout that had the diode to ground the other way around? I'll check this out tomorrow but maybe that does the same thing?

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    Replies
    1. Effects LayoutsSeptember 15, 2016 at 7:37 AM

      Yeah, this is probably the culprit. The diode above the 47k resistor should be flipped. Just fixed that in the layout.

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    2. UnknownSeptember 16, 2016 at 12:49 AM

      ok I tried that. With the two diodes that way round the led also needs to switched round positive side to ground.

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    3. UnknownSeptember 16, 2016 at 5:10 AM

      So with the led swapped round the layout works perfectly, flashing light, sub octave, fuzz. It's a great fuzz for beginners I think. I haven't seen any easier sub octave circuits. I also like it wit a clear led, so I will probably put a switch in for two leds.

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    4. Effects LayoutsSeptember 16, 2016 at 7:49 AM

      Cool. Here's the schematic for reference.

      https://s14.postimg.org/dmbse3us1/Screen_Shot_2016_09_16_at_7_46_21_AM.png

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    5. UnknownSeptember 16, 2016 at 3:19 PM

      This comment has been removed by the author.

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    6. UnknownSeptember 16, 2016 at 3:40 PM

      Thanks I have been looking for a schematic but couldn't find one. Someone over at diy kindly drew one, and I drew another to change the diodes.
      Which is here
      https://drive.google.com/open?id=0B5-vBXgobumTdTUwQVNMRFdhTDQ
      My one does have the led the other way round and that's what I think I've got working. I will check again to be sure, but I don't suppose it really matters because the LED is off-board any way.

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  4. UnknownAugust 7, 2017 at 5:21 PM

    Hey how can i add more baias to this octave fuz??is it posible??

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    Replies
    1. UnknownAugust 9, 2017 at 1:46 AM

      ????

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    2. Effects LayoutsAugust 9, 2017 at 9:44 AM

      Assuming "baias" means bass, increase the value of the 100n input cap.

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    3. UnknownAugust 15, 2017 at 9:27 AM

      Sorry I mean bias is it possible? Thanks

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    4. Effects LayoutsAugust 15, 2017 at 9:35 AM

      Not the way you can with a transistor-based fuzz. You could try adding a starve pot on the voltage rail.

      http://tonereport.com/blogs/do-it-yourself/get-the-most-out-of-modding-pedals-part-1-bass-and-starvation

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  5. UnknownFebruary 3, 2018 at 5:59 PM

    Yeah! Finished this some weeks ago. Today I added an on/off/on switch with an blue LED on one side and an orange one on the other. Recommended mod.

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  6. UnknownApril 1, 2018 at 3:31 PM

    Built it, works great

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  7. UnknownJune 2, 2018 at 9:30 PM

    If anyone reads my earlier comments about the LED being backwards; it turns out my LEDs were the problem. Got them off ebay and the short leg, long led were the wrong way around from the manufacturer

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  8. 125SignalMay 14, 2019 at 3:28 PM

    I had to flip the blue LED around in order for it to work with the effect. It works perfectly now. Thank you!

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  9. 125SignalMay 23, 2019 at 8:02 PM

    ..oh I see now that I had labled the LED + - wrong, whoops.

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  10. MishaOctober 30, 2019 at 4:57 PM

    It works, the drawing is good. I built a few pedals from the drawings here. Thanks for them.

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  11. AlexMay 16, 2020 at 11:24 AM

    Finished, it works like charme. Very good sound! The led has to be flipped: positive goes to ground. Alternatively it doesn't light up.

    In the layout negative led goes to ground.

    I'm proud of this work because it's my first pcb made with my UV lamps! Thank you for all awesome works of this website.

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  12. GermanioJune 23, 2020 at 8:17 PM

    Hola hice esto y no funciona más arriba hay unos comentarios y links pero ya no existen

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  13. AWNovember 8, 2021 at 10:54 PM

    Hi. I build it. Soud is great. I love this. Thx for layout!

    ReplyDelete