Introduction: DIY Taser +30,000V

Picture of DIY Taser +30,000V

Ever wondered how fun it would be to zap someone with a taser? Now you can. :D
If you follow the instructions you should be able to get a good shock out of this that not to lethal but I'm sure its not that hard to step this up from a good shock to a powerful weapon so be responsible with this and use common sense when choosing who to shock (don't go around shocking old people, small children or any one with a heart condition its just a bad idea).
Now that thats out of the way the taser we will be building sends out about one shock per second probable around 35,000-40,000+ volts at an estimated .01 milliamp (millionth of an amp) the shock is about enough to cause you to jump back a few feet if your not expecting it. Voltage and amperage are estimated since i don't have the equipment to accurately measure it.

P.S. sorry about the low quality pictures and bad lighting my good camera was KIA I'm working on getting a replacement camera to take better pictures

UPDATE: i got a new camera enjoy the high res pictures

Step 1: Parts List

Picture of Parts List

most of the parts cam be found at radio shack or a hardware store
Electrical Portion
ignition coil 12v - you can get this from an old car at the junk yard for about $5. for this project you want to get one with only 2 leads. these come in all shapes and sizes so you may have to ask the people working there to help you. also try to save the mount you'll need it later but its ok if you cant
12v relay12v relay - radio shack should sell this
1000 u Farad capacitor1000 u Farad capacitor
1 u Farad capacitor1 u Farad capacitor
non conductive switch- i made the mistake of buying a metal switch and get shocked every now and then
wires- with descent insulation
electrical tape
wire capes
12v power source - i used 8 D-cells for this
soldering stuff

Mounting components
2 foot long, 1 inch thick, 2 inches wide board
6 inch long dowel 1 inch wide
small screws

Step 2: Wiring

Picture of Wiring

now that you've got all the parts we start attaching 6 inch lead wires to all used the leads on the relay this will make your life simpler. connect all the wires as shown in the diagram when you finish connecting everything flip the switch to on and touch the line out and negative line out wire. if you did it right you should be very awake(AKA shocked).

right so i was going through and looking at this and i though I'd add a small section on whats happening here with the wiring just to clear things up.

1)The switch is flipped completing the circuit.
2)The the relay is closed and the 1 u farad capacitor and coil begin to charge while the 1000 u farad capacitor simultaneously charges
3)when the 1000 u farad capacitor becomes charged the relay breaks the connection and the coil and 1 u capacitor discharge shocking what ever may be touching the coils line out and the negative line out
4)the 1000 u capacitor discharges and the cycle repeats at step 2 through 4 until the switch is flipped

ok so imagine this is your panel on the back of the relay

- 1 - 2
- 3 - 4
- 5 - 6
| 7 | 8

these numbers should be printed on the relay however may be missing

when positive and negative are connected to 7 and 8 the relay should trip
when no current is running through 8 and 7 relay allows electric flow from {1 to 5} and {2 to 6}
when current is flowing through 7 and 8 the relay triggers switching the connection from {1 to 5} to {3 to 5} and {2 to 6} to {4 to 6}
if all this is true with your relay you have the same type of relay other wise you may need to rewire stuff

next 8 and 4 connect to the large capacitor on the negative side (side with NO indentation running around the rim.) 5 and 7 connect to the other side of the large capacitor.

1 connects to the positive side of the small capacitor and 6 connects to the negative side.

2 and 3 connect to nothing

other things to check look for shorts around the relay theres a lot of wires really close together

the different colors of the wires is simply to make it easer to differentiate the wires from one another
you might consider using a larger capacitor in place of the 1000 u farad capacitor since i noticed the coil isn't fully charged when it discharged so the resulting shock is like rubbing your socks on the carpet and touching something metal as opposed to sticking your finger in a wall socket.

Step 3: Mounting

Picture of Mounting

by this point you have all the electrical components so your able to mount it how ever you like but this is how i did it. Mount your coil 4-6 inches from the front of the 2*4 using the mounts you salvaged from the car if you weren't able to salvage it use zip ties or duct tape. Next mount the 6 inch dowel 1-2 inches from the rear of the coil. for the batteries i mounted them on the bottom of the 2*4 but this does not work so well you can do it that way or try to come up with a better way to mount them. the switch was also a little tricky since mounting it to the dowel would be hard. for this step i mounted the switch to the side plate on an old pair of safety glasses then mounted that to the dowel. Finally you should have about a foot on 2*4 left this is there to counter the forward weight of the coil on mine I attached a string to help keep it level.

the batteries were falling out so i have since added a hinged section of plexiglass with a small latch

Step 4: All the Wires

Picture of All the Wires

finally you should have a bunch of loose wires hanging off use the electrical tape to help consolidate the wires so they don't snag on any thing then your done.
have fun zapping people.


Kirbsome! (author)2010-04-24

This is insane.
I love it.

N3v3rm0r3 (author)Kirbsome!2010-05-05

it would be insane if the amperage could reach 1A :)

sarvesh7 (author)N3v3rm0r32015-05-30

Well.... 1A would be real insanity...

MohitK23 (author)sarvesh72015-11-15

U can't do that actually. With 1 A current and voltage mentioned in project, you will need 30k watts of supply. That is killing and impossible to supply with this circuitry.

MatthewJ35 (author)sarvesh72015-11-13

That would be dangerous, and would hurt a lot

scozzahisee (author)2009-05-30

you have the same carpet as me woop woop

seabeepirate (author)2008-12-23

"use zip ties or duct tape." haha. Dude, you're my hero.

el hersh (author)2008-10-17

O MY GOD i love that switch is like *ka-chick* IGNITION

Rye2121 (author)2008-08-07

why isint this a featured i'ble!?!?!?!?!

steam_cannon (author)2013-10-22

Also it's worth mentioning that there are many practical uses for taser stun circuitry besides shocking people. They make great ignition sources for gas grills, furnaces, ignition sources for potato guns, ignition sources for model rocketry, ignition sources for model jet engine and pulse jet engine testing. Cool strobe lights with crackling sound effects...

RedSeptember24 (author)2012-11-16

is this used for cattle?

lrjblaze (author)2010-12-05

just wanted to know what would be the resulting effect of this taser shock? i mean, how bad will it hurt?

The shock from an automotive coil just feels like your hand momentaraly stiffens and feels like a 'dead arm' how sometimes if you get punched repeatedly in the same spot. it doesn't hurt much and only very very temporaily :) i have learnt through bad experiences with car coils....

gcowan1 (author)2011-12-06

can your eight 12v D cell batteries produce 2 amps???

gcowan1 (author)2011-11-25

how long will the batteries last? since it requires a lot of energy wouldnt it drain them real quick?

123homer321 (author)2010-12-19

Hi what else would i need for my ignition sparker ?
this is a circuit board off a remote controlled car :D

snowluck2345 (author)123homer3212011-01-29

basically everything, that doesn't have any thing you need for this.

ARJOON (author)snowluck23452011-06-13


z0tx (author)2010-11-24

Is this stronger, equivalent, or less powerful than a Disposable camera with flash built tazer?

blood31 (author)2010-10-27

can anyone tell me its kinda slow 1.5 sec i need violence speed what should i use??

fub1985 (author)2010-10-15

could i have a proper breakdown of the items needed to create this tazer please.. i.e.
what sort of coils is needed? (will a car one do?)
also can a car relay be used. etc etc..

Hightechk (author)2010-09-26

thats great but i wish you would show us how to make a concealable one lol

G7Electronica.NET (author)2010-09-24

no video?

Amix9 (author)2009-10-22


I've reached ur taser invention b/c i was looking for something to light up my Spud Gun. I've been useing hair spray and even just pure Butane gas and the spark lighter on 3V didnt work.... So here i am for the 30kV.
I have a few questions about it :

The capacitors are 1uF and 1000 uF, but at what Volts?
How come u charge them directly from the batery and in other guides they need a charger (liek this i wana built it too), and works on almost the same tech....Tasers are made from photocams and need the charger...
Whats with soo many bateries ? Its a total of 12V ? or each ...
Can it get me killed ? :)) .... very important

Thnx Alot
Alex B

the capacitors i used are 50 volts and 35 volts if i linked to the right part when i made this.  not sure why other guides use a charger i have charged directly from battery's before and it was a convenient solution for this.  you could probably substitute 2 big 6 volt batteries but you do need 12 volts, the batteries are taking the place of a car battery.  the total battery output is 12 volts (1.5 volt d-cell * 8 = 12). the shock from this is the same as the shock from a spark plug on a car maybe a little worse. the only way this could kill you is if you had a heart condition and ran the voltage threw your heart or if the pain.shock scarred you to the point of having a heart attack. if you are a healthy 9 to 40 year old potato canon building guy then don't worry about it to much. 

on a different note it you are planing to use this to ignite fuel the design that this device uses does not provide an optimal shock for ignition. I have used this to ignite paper socked in lighter fluid but if you you the design i am attaching as a photo them you could get a much more powerful shock with the trade off of refire time.

how many volts does THIS taser give off? is it 30000 like the featured instructable?

It should be around 30,000 but the exact voltage depends on the coil you use. I don't have anything capable of measuring the momentary voltage so I had to use technical data from similar products to estimate.

Thnx for the answer :D

I'll try ur design for the igniter .... (same car coil btw) hope it will work .

electridanger (author)2010-08-04

dude make one thats conselable

BlueX273 (author)2009-09-30

This is awesome! Yet this is beyond overkill!!! You could kill someone with this! I mean, 2000 volts is enough for fun and self-defense, but 30,000 VOLTS, yuo have to be kidding!!! But great job anyways. =)

bighead5454 (author)BlueX2732010-07-20

volts dont kill you can have 3 million volts and you couldnt kill amps are another story

it's not the voltage that kills people its the amperage. plus its and instantaneous shock that repeats every .75 seconds or so. with self defense tazers you have a continuous electrical current which still takes up to 10 seconds or longer to take some one down to a point where they cant move

Actually, it takes more than amperage to kill someone; the voltage decides. For example: 1.5 volts at 0.1 amps isn't enough, but 30 volts at 0.1 amps will kill you. Therefor, amperage is dangerous and voltage increases the danger. Also, when I said "You could kill someone with that!" I really mean "Shock them so hard that they pass out for awhile".

ok and some people pass out when they get a shot or give blood etc. i could hold onto the discharge points and over power the impulse to let go it hurts a bit it will make you jump if your not expecting it but its pretty safe if you only let it get you a few times. besides its barely 0.01 milliamps. not amps.

Okay, okay... Never mind.....

micromuffin (author)2009-10-06

The proper term could be either. Toddlers use "current" and scientists use "amperage". You are clearly a toddler with grammar trouble.

coolchris1225 (author)2009-08-22

Does it arc... How long of an arc?

It creates an arc of about 2 cm for a instant and it discharges 1.5 times a second. These numbers are from memory since I threw it away when I moved

threw it away !?!? why didn't you give it to me? :)

mr. clean (author)2009-03-16

I like how it zaps through clothes

doityoureself (author)2009-03-14

I would not ever advise anyone to use a 12 vDC device to assault or defend themselves from assault. All you will do is make someone mad enough to possibly really hurt or kill someone. You are only producing around 30-40 DC amps at the very maximum, for a short duration and at very low reserve power unless you had a car battery with it. Be careful who you use these on, someone who is determined to hurt you cannot be stopped from a 12 vDC coil! It would probably just make things worse if they were serious about hurting you unless you were faster and immediately high-tailed it from the scene and never seen them again. The only device that I have been able to make to stop someone is made from 120/240vAC capacitors (along with many other components). Many slight disadvantages though, like only one shot before needing a re-charge from 120/240vAC power supply source(unless you have multiple capacitors,etc.), need to find way to keep charged for more than 48 hrs(capacitors drain off eventually, some quicker than others, depending on environmental conditions, etc.), very, very deadly(do not play around, treat capacitors as if they are charged unless you discharged yourself). And must have exactly the right type capacitor/s and a way to efficiently deliver line to ground (or ground to line).These are a lot more complicated than a 12 vDC shock and I am afraid if I post it it may hurt someone. So in all seriousness be careful who you shock with 12vDC or 120/240vAC even if for different safety reasons. I especially hope nobody's serious about defending themselves with a computer mouse size homemade device, don't take me wrong I do admire the thought and ingenuity to fabricate such a device, I just hope you are not depending on this in a life or death situation. This is how great inventions/inventors are made, so by all means, dont stop.

mr. clean (author)2009-03-12

also does your coil get warm when you use it, or is it because i have mine arc to to negative?

mr. clean (author)2009-03-08

how many people have you shocked? and has anyone needed c.p.r. due to the shock from this, or been seriously injured.

I've shocked myself accidentally more times then I can count well monkeying. I've also shocked about a dozen people in addition to myself but most of them only once since its not exactly fun to be shocked. no one has ever needed CPR the worst shock you usually get is enough to make you pull your arm away uncontrollably or jump back uncontrollably with some singed hairs at the point of contact but singed hairs aren't common. To be safe just don't make the electricity flow threw the heart.

mikemmcmeans (author)2009-01-21

the factory line outs o the ignition coils have a lot of resistance in them. pop it off get some 10ish gauge wire wrap it twice around the output then lead it to there ith other line out was

Xellers (author)2009-01-03

Please post schematics of this thing rather than the wiring diagram that you have. Different relays have different pinouts, so this might not work for everyone if they use your diagram. Also, can you post an explaination about how this thing works for people that don't know?

seabeepirate (author)2008-12-23

What voltage capacitors are you using? 12v? You may be able to slightly rework the circuit to use higher voltage capacitors... they would probably charge a little slower but they'd give more of a kick I think. I'm not exactly an electronics expert, and in all actuality I don't think I would have put the time into this project to design the circuit. I'm more of a mod-it kinda guy than a build-it-from-scratch kinda guy. Ironically when I build something from a modified design, I usually build it from scratch haha.

ReCreate (author)2008-12-19

ouch ouch ouch! Im not shocking myself anymore

Lonewolfajk40 (author)2008-05-29

Ok, So I had all the parts, tried over and over, got upset and resoldiered every wire, went to hook it up an he capacitor blew =( I just want this thing to work, why wont it????

Berkin (author)Lonewolfajk402008-11-04

Dude, you could make a much simpler "Super Taser" by connecting a 12v battery to a relay oscillator, which will send a pulsing current to the primary winding on an induction coil. For the coil, I suggest 100 windings for the primary, and 1,000 for the secondary. Then, use the two wires coming from the secondary as the probes. Big spark. HUGE shock! Although, I am not liable for whatever you do with it, so I advise you to take caution handling it.

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