Electronic vuvuzela

Want to annoy fellow fans but  don’t have the lung power to do the job? [Hunter's] electronic vuvuzela is just the thing you need. The plastic noisemakers were so prevalent at the world cup this year that some folks came up with audio filters to remove the sound. The electronic rendition is much smaller, using a 555 timer to mimic the instrument on a small speaker. [Hunter's] build has buttons for five different notes which can be altered with some potentiometer. There’s no schematic but then again for something that’s annoying you don’t want to make it too easy to replicate.

Update: Hunter added the schematic to his site which spell doom for those who enjoy peace and quiet.

27 thoughts on “Electronic vuvuzela

  1. What value is the output cap? It seems like that’s the key to getting the right sound.

    @no. I offer up the term “livetroll”.

  2. @Hunter Well done. It reminds me of making noises in BASIC on my Apple //e.

    You should stick the speaker at the end of a long cardboard tube for added annoyance.

  3. was hoping for a closer matching of sound but vuvuzela jokes always make me smile for some reason.

    yay for young people + electronics :D

  4. you never outgrow the 555, once bread boarded a VGA sync signal out of a 556 dual timer and some fidgety resistance adjustment

  5. Pretty simple build, did similar thing in H.S in electronics class, although we weren’t going for the vevuzela sound…

  6. “bascially… aaa… aaa… basically… aaa…”
    I hate to be the negative guy who starts this, but what was hacked here?

  7. Hahaha, I remember building something like this from a “Heathkit” magazine or something, back in the 80′s. I must have been about 8, my parents got so annoyed with it that they took it away and I never got it back :’(

    @Walt
    It’s not a hack, but it’s a fun project for a beginner. Kids everywhere could disrupt their parents peace and quiet with this weapon of audible destruction…

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