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posted by martyb on Sunday October 16 2016, @07:21PM   Printer-friendly
from the do-not-try-this dept.

Taking a break from his book, "How to Gain Enemies and Encourage Hostility," [FPS Weapons] shows us how to build our own handheld EMP generator which can be used to generate immediate dislike from anyone working on something electronic at the hackerspace.

The device is pretty simple. A DC source, in this case an 18650 lithium battery cell, sends power to an "Ultra High Voltage 1000kV Ignition Coil" (as the eBay listing calls it), when a button is pressed. A spark gap is used to dump a large amount of magic pixies into the coil all at once, which generates a strong enough magnetic pulse to induce an unexpected voltage inside of a piece of digital electronics. This usually manages to fire a reset pin or something equivalent, disrupting the device's normal operation.

Fun project in the spirit of TV-B-Gone.

[Ed note: This may or may not be legal in your area. It is definitely not recommended for use when a passenger on a moving vehicle.]


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  • (Score: 0) by Anonymous Coward on Sunday October 16 2016, @09:17PM

    by Anonymous Coward on Sunday October 16 2016, @09:17PM (#414953)

    Great for krykian photogtaphy. EMP nope. We dropped 400 VDC (rube transformer) into primary if 12v to 50kv intuition coil. Made great sparks. Even had to go over my sink when one unit had a ground error. Feels like ants everywhere.

  • (Score: 1, Touché) by Anonymous Coward on Sunday October 16 2016, @09:57PM

    by Anonymous Coward on Sunday October 16 2016, @09:57PM (#414982)

    Sounds like that device had more than just a temporary effect.

  • (Score: 2) by butthurt on Monday October 17 2016, @12:07AM

    by butthurt (6141) on Monday October 17 2016, @12:07AM (#415017) Journal

    Wikipedia page about Kirlian photography:
    https://en.wikipedia.org/wiki/Kirlian_photography [wikipedia.org]