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Stun Gun

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ElectroMaster

Administrator
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.



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

mahjosh

New Member
Help on transformer

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

Thanks
 

chemelec

Well-Known Member
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.
 

barbuzzaa

New Member
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!
 

Tom_Braider

New Member
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.
 

hsab

New Member
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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Roboticinfo

New Member
reply

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.
 

eggplant

New Member
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....")
 

moody07747

Member
Re: Help on transformer

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

Thanks
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
 

moody07747

Member
ElectroMaster said:
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.



NOTE: Building stun guns can be very dangerous! Please use caution.
whats Q1?

it looks to be a transistor but i want to be sure before i get one from radioshack
 

Nigel Goodwin

Super Moderator
Most Helpful Member
moody07747 said:
whats Q1?

it looks to be a transistor but i want to be sure before i get one from radioshack
It's a very common NPN power transistor, 3A 40W, in a TOP66 package.

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