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Electric OU: Small Jacob's Ladder, or What a 555 Timer Can Do for You

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Uploaded by on Aug 11, 2009

A small Jacob's Ladder, driven by a 555 timer circuit quite similar to the Ainslie clock in all its variations. The 2n3055 transistor, the automotive ignition coil, and the big diode are wired up exactly as the remainder of the Ainslie "heater" circuit.

The only real difference is in the choice of timing R and C in the 555 circuit, and the 10-turn pots for precise control of frequency and duty cycle.

And yes, in this circuit the battery voltage will actually appear to rise as the circuit runs. For example the no-load voltage when I started was 12.6, and when I finished this demo it was up to 12.8.

So it must be a massively overunity Jacob's ladder!!

The circuit diagram jpg may be downloaded from
http://www.mediafire.com/imageview.php?quickkey=mdmm4jxzzmo&thumb=5

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Science & Technology

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Uploader Comments (TinselKoala)

  • is the 555 wired as astable? also are you using a TO-220 style transistor? great job!

  • @bleachworthy

    The 2n3055 is a TO-3 case. The 555 is astable, yes. Don't forget to put in a big fast diode to protect it from the spike from the coil. Thanks...

  • how much did it cost

  • @plecebomc

    The most expensive part for me was the ignition coil, i bought it new from a car parts store, but you can get one from a junkyard for 5 dollars probably. The rest of the electronics parts probably cost about 8 or ten dollars. the big transistor is usually around 2, the chip 50 cents, and so on.

    All the parts are very common and should be available off the shelf at just about any component store.

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All Comments (17)

Sign In or Sign Up now to post a comment!
  • @fittingciobb

    That's what, now, 5 or maybe 6 spam posts with different user names but the exact same text. You are blocked and reported.

  • I used a 5000v neon sign transformer once and got zapped pretty hard, caution is highly recomended with this stuff. Watch the ozone creation it is corrosive,

  • Nice.

  • Rosemary's baby

    makes bright ascending arcs

    in twilit basement

  • Certainly not, is right.

    I don't know. I'm content right now just to use these comments. It gives me some control (I can remove graffiti and block vandals) and the short comment format forces conciseness and clarity. Say that 5 times really fast.

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