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Stun Gun

Discussion in 'Electronic Projects' started by ElectroMaster, Jul 19, 2002.

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  1. ElectroMaster

    ElectroMaster Administrator

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    This stun gun is powered by a 9V battery. The transformer steps up the voltage to about 1800V (but with very low current). A 555 timer IC is used to generate a high-frequency output. A 1 MEG variable resistor can also be used at the output to drop the voltage, but this is optional. If you build this circuit, be careful, as it outputs a high voltage. Touching the output leads will induce a painful shock.

    [​IMG]

    NOTE: Building stun guns can be very dangerous! Please use caution.
     
  2. mahjosh

    mahjosh New Member

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    Help on transformer

    Could you please provide more details on the transformer.
    Is it the output transformer used in pockect radio sets?

    Thanks
     
  3. steviewonder

    steviewonder New Member

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    could u please tell me wat u could connect to the out put of this very simple but clever circuit
     
  4. dave

    Dave New Member

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  5. zachtheterrible

    zachtheterrible Active Member

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    your fingers :lol: :shock:

    DON'T DO THAT, I WAS JUST KIDDING!
     
  6. chemelec

    chemelec Well-Known Member

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    I would be curious to know whare you got a 1800 volt 1 meg pot from?
    Most pots are rated at 250 volts or Less.
    Typically 1/4 watt resistors are also rated at 250 volts.
    Typically 1/2 watt resistors are also rated at 450 volts.
     
  7. barbuzzaa

    barbuzzaa New Member

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    very clever but i would replace the 555 with a crystal oscillator... much easy to wire and replace. however this is a cool circuit... ciao!
     
  8. Tom_Braider

    Tom_Braider New Member

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    Chem,

    I know you're going to do a head smack (to one of us), but of course the resistors are on the 9v side.

    Technically, R4 is a variable resistor rather than a potentiometer, but it's still a fair question.
     
  9. hsab

    hsab New Member

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    HI

    AN OTHER SCHEME FOR HIGH POWER SUPPLY MODIFIED TO BE USED

    AS STUN GUN WITH HIGH OUT PUT. TAKE A LOOK :wink:
     

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  10. jrigg

    jrigg New Member

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    do you use a breadboard to build this circuit. :(
     
  11. Roboticinfo

    Roboticinfo New Member

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    That is not a good Idea for this type of circuit, especially if you want a compact stun gun.

    All you need is to make a board.
     
  12. eggplant

    eggplant New Member

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    This might be a silly question, but how would you go about testing something like this? (apart from asking a friend to "just hold this....")
     
  13. Roboticinfo

    Roboticinfo New Member

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    Use a animal

    :D
     
  14. moody07747

    moody07747 Member

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    this is a great project

    test it on a can and see the hole it makes :lol:
     
  15. Roboticinfo

    Roboticinfo New Member

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    It works good??
     
  16. moody07747

    moody07747 Member

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    i have no idea... YET :lol: :)
     
  17. moody07747

    moody07747 Member

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    Re: Help on transformer

    looks like it

    its an audio transformer and i seen them tons of times

    last time i saw one it was in a broken tv and i think i saved it

    now i have to find it
     
  18. moody07747

    moody07747 Member

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    whats Q1?

    it looks to be a transistor but i want to be sure before i get one from radioshack
     
  19. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    It's a very common NPN power transistor, 3A 40W, in a TOP66 package.

    The transformer is a driver transformer, NOT an output one.
     
  20. graingert

    graingert New Member

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    I have built it take a look!
     

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  21. Roboticinfo

    Roboticinfo New Member

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    Does it work good?
     
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