This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Thursday, March 8, 2018

VooDoo Lab MicroVibe

Here's the Micro Vibe from VooDoo Lab—aka, welcome to jumper city. Always seems to happen with vibe circuits, but this one will fit in a 125B quite nicely. Pretty standard adpation of the old Univibe with speed and intensity controls. Set the trimmer to 250Ω (and be careful if you adjust it since there's no protection/limiting resistor). Schematic can be found here.


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28 comments:

  1. alexmanMarch 8, 2018 at 11:12 AM

    Thank you! Very useful layout. Good luck!

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  2. RadeMarch 8, 2018 at 5:03 PM

    About the LDR diodes, which would be the best dark resistance value? There are multiple LDR versions and values in megaohms, which ones are the best for use in this circuit?

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    Replies
    1. PeterMarch 9, 2018 at 8:14 AM

      I have bought a set and lamp from Banzai and small bear the small bear ones are in a madbean clone of the univibe and I get nice lush phasing ,I havent used the banzai set yet so I cant comment,

      Delete
  3. GuilhermeMarch 8, 2018 at 11:23 PM

    I think it would be nice to add to the description that D1 isn't actually a diode, but a lamp

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    Replies
    1. Effects LayoutsMarch 9, 2018 at 9:30 AM

      You correct. 30ma lamp apparently. When I laid this out I think I just assumed it was an LED like the EQD Depths. I wonder if you could get a way with using an LED...

      Delete
    2. PeteMarch 9, 2018 at 3:23 PM

      I dunno, but thats what I'm going to try when I build this.

      Delete
  4. es7ebanpum4March 9, 2018 at 10:19 AM

    https://www.youtube.com/watch?v=ZLo6EdFI31A i build but other layout of fsb with lamp and ldr, sound really good

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  5. SkeetVanDerchuckApril 29, 2018 at 9:24 AM

    Definitely verified. Red LED’s work in the circuit. You should use TL062’s as TL072’s and 4558’s introduce ticking and other weird unpredictable noises. Fun circuit to build though.

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  6. tonyJune 30, 2018 at 10:00 AM

    Is 100k dual gang pot linear or logarithmic?

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  7. tonyJuly 4, 2018 at 8:44 AM

    Thank you...
    another question: ldrs are GL5549 or others? Thanks again

    ReplyDelete
  8. pakkee66January 2, 2019 at 3:38 AM

    build this, with LRD 5539 [dark resis 6M above] & 5mm red led, got wrong used 500k trimmer in the begin, back to 500R the vibe is shown, thanks for the layout, and some shots sharing here: https://photos.app.goo.gl/yySGaZTG6Htpusdo7

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  9. jloFebruary 20, 2019 at 5:44 AM

    Can anyone tell me why the 47K and 100k bias resistors for the lamp driver (Q3) are backwards from the Univibe? Is it because the Micro Vibe is 9V?

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  10. MehdiMay 23, 2019 at 6:32 AM

    hello, does ldr 5528 work? It gives me 1 Mohm in dark.

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  11. kramFebruary 21, 2021 at 11:14 PM

    built this one with no problems...but it doesn't have the intensity of the real micro vibe. Does it have something to do with the MV using a real lamp bulb? BTW, i used a 330nF cause i currently ran out of 470nF...does that affect the intensity?

    here's a demo vid...
    https://www.facebook.com/KRAMTONE/videos/10223197386337501/

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    Replies
    1. FerraMarch 2, 2021 at 3:25 PM

      Que LDR?

      Delete
    2. Zaraki1337August 5, 2021 at 3:18 PM

      I also have same type of problem it doesnt have intensity like microvibe
      Where can buy lamp?

      Delete
  12. Zaraki1337August 5, 2021 at 3:13 PM

    Im having problm with lfo. Sometime it works sometime it dont..

    I tried with led its not working well ..
    I even kept bigger ldr still not univibish




    Is it because i used led.?

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  13. Zaraki1337August 5, 2021 at 10:40 PM

    Do we need to match ldr?

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    Replies
    1. DiegottoSeptember 22, 2021 at 11:54 AM

      Use any 12v small lamp that you can find at a hardware store and set the trimpot to o (no resistance), you´ll need all the 9v to keep the lamp working properly.

      Delete
  14. RogueSeptember 18, 2021 at 1:23 PM

    Hello, I would like to be able to have a volume to adjust, with a trimpot, what resistance should I modify for this?

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  15. Lukes0nDecember 13, 2021 at 2:08 AM

    Hello, great layout ! Is there a way to add "vibrato" mod ?

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  16. DiegottoDecember 19, 2021 at 4:45 PM

    Install a toggle switch to break the signal coming from r18 to kill the dry signal, that´llleave just the wet for a vibrato.

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  17. UnknownMarch 17, 2022 at 12:05 PM

    What kind of lamp are you supposed to use in this kind of project? Any tips on LDRs and lamp combinations?

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  18. AndyApril 15, 2022 at 1:59 PM

    which Photocell model works best in this circuit?

    https://a.aliexpress.com/_mMcmo3C

    ReplyDelete
  19. MassatonyOctober 30, 2022 at 5:33 PM

    If your building this one you should have a cover over the lamp/LDR particularly when testing it.

    ReplyDelete

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