555 Mind Mangler

About: We are a group of Engineers, Tinkerers, Designers, Programers, and Nerds ! ---- and Since April 2011 We also have a Cupcake Maker

We made a Mind Mangler out of a 555 timer chip, this creates a very high pitch humming sound that makes it very difficult to find and detect. It annoys the living life out of our victims a.k.a roomates. Visit our website at www.hm-innovations.com for additional projects.

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    8 Discussions

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    twchapman63

    5 years ago on Introduction

    Much more fun with a pot at R3 for amplitude control and a 10k pot at R2 for frequency control...you can produce a truly annoying sound by playing with these two pots!

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    jukees

    6 years ago on Introduction

    this would be a lot more annoying, if it only makes sound in the dark.
    LDR + traNsistor perhaps`

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    powerman666

    6 years ago on Introduction

    I built it with a .22uf capacitor and the buzzing was a higher pitch. I also tried the 1uf cap but I liked it better with the .22uf cap.

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    jomac_uk

    8 years ago on Introduction

    I have to agree with the ads, i got as far as the 3rd page, lost interest and shut the window down!

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    jman 31

    9 years ago on Introduction

    I checked out your site. It would be really cool if it didn't have ads all over. Every time you click on something you get some sort of ad. Very annoying!

    Projects are cool though.