1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

STUN GUN

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by tripler, Jul 15, 2002.

  1. chemelec

    chemelec Well-Known Member

    Joined:
    Apr 4, 2004
    Messages:
    2,116
    Likes:
    77
    Location:
    Hedley, B.C. Canada
    I would tend to Disagree. One Main good Reason is It can be very educational in building them and trying to understand the principals involved. Especially the Insulation factors for such High Voltages in a Small Confined Space

    Besides, Its just a Minature Telsa Coil. And How many people build them.

    Not that I would ever shock anyone with one.
    And No I Don't consider it should ever be used as a weapon.
     
  2. Oznog

    Oznog Active Member

    Joined:
    Apr 21, 2004
    Messages:
    2,879
    Likes:
    11
    Location:
    Austin, Tx
    If you're not intending to build something to use as a weapon, you're not building a stun gun. You're building a Jacob's Ladder or whatever, something to make sparks for show. Which actually sounds just fine! As long as you're not making a device intended to apply potentially harmful HV to people nobody's going to object.

    It's not a Tesla coil. It's not high freq, not resonant, not air core.

    Now making a "solid state Tesla coil" out of a old-style TV flyback and a couple of transistors is a lot of fun. It draws pretty long streamers. It's not an air core but two out of three is probably enough to apply the Tesla name. You can do most of the neat stuff that a Tesla coil can do- light flourescent tubes at a distance, draw streamers without shocking you, etc.
     
  3. chemelec

    chemelec Well-Known Member

    Joined:
    Apr 4, 2004
    Messages:
    2,116
    Likes:
    77
    Location:
    Hedley, B.C. Canada
    [quote="Oznog
    It's not a Tesla coil. It's not high freq, not resonant, not air core. [/quote]

    I Never said it was a Telsa Coil, but there are definate simularities. No it is not an Air Core, but Yes it definately can be Resonant.
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. Roff

    Roff Well-Known Member

    Joined:
    May 16, 2003
    Messages:
    7,757
    Likes:
    89
    Location:
    Idaho, USA

    Gary, I hate to be picky, but you did say:
     
  6. olly_whinnett

    olly_whinnett New Member

    Joined:
    Apr 1, 2006
    Messages:
    20
    Likes:
    0
    Does anyone know if this 'kubaton' people are referring to is the same as knuckle dusters? How would one go about making this?

    Would it be illegal to posess in the UK?
     
  7. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

    Joined:
    Nov 17, 2003
    Messages:
    39,216
    Likes:
    640
    Location:
    Derbyshire, UK
    Yes, it's a criminal offence and penalties can include jail time!.
     
  8. Blueteeth

    Blueteeth Well-Known Member

    Joined:
    Oct 15, 2003
    Messages:
    1,168
    Likes:
    34
    Location:
    Hertfordshire, UK
    long time....

    Hi,

    Its been ages since I stuck my 'moral' oar in.....and I see some fairly recent posts in this topic, guess theres still significant interest in the matter.

    Ron H,

    You are of course, completely correct in saying I 'opened myself up to questions'. Why did I build several versions? Mis-spent youth :D (a 12-year-old with a transformer and too much time) I've been a 'fan' of HV since I can remember, and the circuits that claim to be 'stunguns schematics' were sometimes, just pretty easy way to get nice arcs without dealing with mains electricity. I've since learned a lot more (postgrad), and have moved on to better things, like audio/control/comms/digital electronics.

    The only reason I posted my concerns was purely out of...well...concern! This is an electronics forum, therefore questions should be purely about electronics. I probably should have been more helpful and provided a schematic, or advice...but its something I feel very strongly about. Making a stungun will be a waste of time. It'll get you beaten up, arrested, or, just sit on your workbench reminding you that you've wasted time building something that will never be used.

    That said. I am from the UK, where we have fairly strict law concerning such 'weapons', all of which I agree with. Big apology to admin, for using up forum posts, but I felt I should at least reply to this topic once more.

    Blueteeth.

    Ps. On a technical note, I did provide some clues as to effectively create such a device. If you want to learn how they work, research, research and experiment!
     
  9. NeoMach

    NeoMach New Member

    Joined:
    Sep 23, 2007
    Messages:
    8
    Likes:
    0
    Location:
    PA
    Stun Gun Alterations

    Hello,

    This subject may have been addressed, but if your building the Stun Gun by Mark Stoker.
    You may need to increase the 555 timer's frequency. The reason for this is to increase
    the inductive reactance across the "primary" of the transformer. It will put a higher voltage
    across the input and therefore a higher voltage across the output.​
    In my case I placed a 1K:eek:hm: resistor in parallel with the 47K:eek:hm:, which gave me a frequency
    around 5KHz. and the voltage across the "primary" went up to about 2Vrms and 250Vrms
    on transformer's output. ​
    Also if you are having trouble finding audio transformers, Radio shack has a 1000K/8K with the SKU#273-1380.

    Best of luck, and be careful.
     
  10. Krumlink

    Krumlink New Member

    Joined:
    Aug 10, 2007
    Messages:
    2,080
    Likes:
    20
    Location:
    Michigan, USA
    This is a very old thread, the OP is not active anymore.
     
  11. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,444
    Likes:
    935
    Location:
    Canada, of course!
    Does anybody try to make stupid "stun guns" anymore?
     
  12. Mikebits

    Mikebits Well-Known Member

    Joined:
    May 24, 2008
    Messages:
    6,214
    Likes:
    174
    Location:
    San Diego, Ca
    My wife has considered it :)
     
  13. Krumlink

    Krumlink New Member

    Joined:
    Aug 10, 2007
    Messages:
    2,080
    Likes:
    20
    Location:
    Michigan, USA
    AG, by chance did you see the one folk over on electronic lab that wanted to make a 50k 6-7A power supply?
     
  14. Mikebits

    Mikebits Well-Known Member

    Joined:
    May 24, 2008
    Messages:
    6,214
    Likes:
    174
    Location:
    San Diego, Ca
    Thus, another Darwin award winner is born...
     
  15. blueroomelectronics

    blueroomelectronics Well-Known Member

    Joined:
    Jan 21, 2007
    Messages:
    12,536
    Likes:
    168
    Location:
    Toronto, Canada
    All my EMP post replies were deleted at Electronics Lab.
     
  16. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,444
    Likes:
    935
    Location:
    Canada, of course!
    I don't think any of us can think about how much power is in 350kW (50kV at 7A).
    A stupid stun gun has far less power.
     
  17. ahmedsandy

    ahmedsandy New Member

    Joined:
    Apr 20, 2009
    Messages:
    1
    Likes:
    0
    thanks to much about the circuits
     
  18. vortex2009

    vortex2009 New Member

    Joined:
    Apr 11, 2009
    Messages:
    24
    Likes:
    0
    electrical current scale!!





    This scale is to do with electrical current/shocks

    .01 to 1ma Tingling to anoying - Static electric shocks
    1 to 5ma anoying to Painful Spark plugs, Tv pitcure tubes, trip current of GFI
    5 TO 20MA Painful to very painful Oil burner ignition bug killers, stun guns

    20 to 50ma Very painful to possibly lethal Neon sign transformers, old tube radios

    50 to 100ma Possibly lethal to lethal low-powered transmitters, capacitor charges for lasers

    100ma to 500ma lethal to deadly Medium-Powered transmitters, Laboratory power suppiles.

    500ma to 1amp Electric chair, 220-volt house current under certain circumstances..

    So theres some details.. to go on
    I've got a simple diagram thats gives out a Joke shock... to amore awful one that gives out 10k to 20.000volts:eek:
    vortex2009
    :D
     
  19. lee_76

    lee_76 New Member

    Joined:
    Oct 3, 2009
    Messages:
    3
    Likes:
    0
    I know this is an old thread, but here is a link to a site to build a stun-gun, I built the circuit,and modified the latter part of the circuit to use 1 capacitor and no 27 M resistors(which i couldnt get), works very well.

    Steel Rats Club
     
  20. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,444
    Likes:
    935
    Location:
    Canada, of course!
    The Russian guy swears too much like a little 13 years old kid.
     
  21. circularsaw

    circularsaw New Member

    Joined:
    Nov 1, 2009
    Messages:
    1
    Likes:
    0
    Hello! Sorry to open an old topic, however I didn't know where to ask this, and this is stun gun related. I wander if someone with more experience would help me with this:

    I wanted to build a high voltage supply, and I tried it with the first stun gun oscillator design from this website - Stun Gun Schematics - Compare Our Prices (because I had only TIP31 transistors). I checked it many times and I am sure everything is connected right way. Using 9V battery, multimeter reading at the output is about 4.6V, and I can see a square wave of about 8 cycles per 50 ms (160 Hz) - I have only winscope -so I guess the oscillator works. But when I connect it to the transformer I get reading of 0V at the secondary, and primary, although winscope shows something between sine and square waves. Transformer I used is hand wound, 40 turns of 0.7 mm enamel wire for primary (around a 7 cm long, 1 cm diameter iron bolt), 1400 turns in 10 layers of 0.3 mm wire for secondary, with each layer isolated and the whole thing covered in wax. I also tried with a small transformer taken out from cell phone charger and 3KV xenon transformers, with no results. Battery voltage is 7,26V, maybe the current is too low? I would appreciate any help.
     

Share This Page