Instructables
Picture of EMP generator
To make a EMP generator you will need:
A disposibul camera
alot of copper wire (the thiner the better)
A switch.


 
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Step 1: Making the coil

You need to make a coil of wire about 10cm wide, you can do this by wrapping the wire around a circal object like a drink bottle. When winding go for thickness not whith, the thicker the coil the better. When finish wrapping slide it off the circal object and tape it up so it looks neat. Make shore to leave wire to connect it to your switch and power sorce. You should have a nice ring.

Step 2: The disposibul camera

Picture of The disposibul camera
Get a disposibul camera with a flash, take the charging circet out of the case. DON'T SHOCK YOUR SELF. The charging circet has a 330volt capasitor and if it's charged it will hurt. To discharge the capasitor touch the two wires conecting to a black cinider(the capasitor) with a screw driver, it should put out a shower of sparks. Make shore you take out the batteries.

Step 3: Assembly

Picture of Assembly
Attach one of the wires coming off the coil to the switch and the other to one of the wires going into the capacitor. Get a wire going from the switch to the other wire going into the capasitor. When your done charge up the capasitor and when it's charged switch the switch and it will creat an EMP. It should be able to knock out calculators at close range. If not improve the coil with more layers of wire or attach extra capasitors onto the charging circet.
PriyaP2 days ago

does it work to incapacitate human being or induce current in human body?

RobertM225 days ago

www.empgenerator.com

p mishra3 months ago
hey the disposable camera's ccircit u used that could be replaced by a mosquitoe zappers circit
LegoMasterRCE4 months ago
Perfect for school. You know knocking calculators out during class. =D
McChicken2 years ago
Two things:

1) That won't put out an EMP, it's not even an electromagnet.

2) Your spelling is awful

3) My maths is awful
Jewson (author)  McChicken2 years ago
If it isn't a emp then why dose it Work and behave exactly like one?
weargle Jewson6 months ago

do you even know what an emp is?

You have to vary the power to the coil. It has to go on and of to produce AC. Kinda.
ewcrew9 months ago
I read in another article that a thick wire is better than a thin wire and to wrap round a thin iron tube. It also said try to cover the whole length of the iron tube.
Modscientist9 months ago
Testing relays in a circuit without powering up. It also biases turns on semiconductor components without power up. Used as a test tool for traffic light and high power industrial equipment. When testing with power check circuits controlled by relays or component by activating them manual. Also check mechanisms in soda change and casino devices.
Jurassic1 year ago
If I'm going to add more capacitors to it, should I do it in parallel or in series?
Capacitor should be hooked up in parallel to increase the capacitance. Series to decrease. eg: two 10 ohm resistor in parallel = 5. In series two 10 ohms 20 ohm.
Cap 10 microfared parallel =20 microfarred In series = 10 microfared.
if you want more capacitance (and thus a stronger pulse) attach in parralel. if you want more voltage tolerance (and thus a safer capacitor) use series.
yveg1 year ago
I would like to have a very small emp device. I am willing to pay for all the expenses. Please let me know if someone can help.
Modscientist yveg9 months ago
I'm working on one were the parts are easy for anyone to get. And also to assemble.
Kind of looks and acts more like a degaussing coil. This is also how energy is created. If you take and spin a magnet inside of your coils of wire, it will produce electricity on the ends of the wire
It is kinda. Your correct
samalert2 years ago
what i have seen is tat when EMP is created the device in its range are permanently damaged .....nw when u say knock off calculator is tat damaged permanently?

also what charge is supplied to this coil AC - DC ? and to what amount?
DC but it needs to be energized and de energized. 18-37 volts. You Have to experiment. No equipment should return back to normal.
Does your H key work?
an EMP will not permanently damage an electrical device. It may be momentarily attracted to it, but there is no evidence for them being able to destroy circuits.
actually there is, during the cold war when the united states was doing testing of nuclear weapons in the pacific the accidentally misjudged the strength of the weapon and found that the electrical systems in Hawaii were overloaded with thousands of volts melting their home appliances and causing damage to the island's infrastructure.

nuclear EMPs usually have a very small range compared to it's conventional blast, at surface level the conventional blast wave not only outpaces the EMP but it also envelopes it. however as you start detonating the nuclear weapon higher in the atmosphere you start seeing the range of the EMP increasing. 1 mile in the atmosphere could take out an entire state the size of say Kentucky. 2 miles could take out a good section of the breadbasket. 3 miles could take out anything not in a faraday cage or anything that isn't properly grounded device.

what happens with a nuclear emp is that the gamma rays "knock" electrons out of the air ionizing it and this forms a blast wave composed of the "knocked" electrons. this wave induces high voltages and currents in microchips as well as overloading the pigtails on telephone poles.

*spoiler* as a post script note: this is the concept that they were showing in call of duty modern warfare 2 when they blew up the space station.

however what they don't tell you is that properly grounding any circuit to earth will save most any circuit from an emp and anything with a microchip can be saved by "grounding" it to a Faraday cage that is grounded.

any transformer or coil will produce an emp, just like sparks will. if you hold up a radio to the light switch as you flick it on and off you can hear it's emp on a quiet station. the reason why electronics aren't affected wholesale by light switches is because the strength of the emp just isn't there. same with a coil like this, the energy is stored very briefly in the big huge electromagnet then when the magnetic field collapses because the current stopped then it transmits an electromagnetic wave which can be though of as an incredibly small EMP.

finally while we should promote good spelling and grammar i highly suggest you do it in a better way, just telling someone they are bad at grammar solves nothing but shamming the person. instead describe the proper usage of punctuation and vocabulary and above all else be a good example of proper spelling.
Jewson (author)  McChicken2 years ago
I typed this up on a iPod so I have no keys
Jewson (author)  samalert2 years ago
Use dc, and the damage will depend on the strength of the device getting broken
ok prefect.
but what should i do for a stronger wave? add some extra wire?
or any other options?
i dident becse i think it would make the voltage lover is it tru or not?
Jewson (author)  assassino desigen2 years ago
the more voltage you have the bigger the wave will be and with the wire the more the better untill you get to a certen point then it will drop. im not sure where the butter zone is yet, just dont go over kill.
Your on the right track. 24-22-18 awg Gauge wound in a circle. the more wire is not correct. The higher voltage is. Between 18-30-37 volts. Try 10-30-40 turns. If the circuit doesn't in essence turn the voltage going to the coil on and of it will only energize the coil and that's it. You need a circuit that in essence shuts power off and on creating a pure AC wave.
Fingermouse2 years ago
Good effort, but.. bottom line: has anybody made an EMP which has demonstrably shown to work? And where is the link to it, for I, and many others would love to build it! ;-)
When I get membership upgraded I'll post a simple version. This can be done with the flash circuit in a camera. But there are more effective circuits. I'm currently designing one with easy to by parts. Already made. The coil is tricky and can be frustration if not wound properly. you can find links but if your not really handy with electronics it can be frustrating. You could have the circuit build right and made one mistake and scrape it. The parts should cost under 10 US dollars compared to 80 to 100's of dollars.
Bebop2 years ago
This is better:
http://www.flickr.com/photos/75690332@N04/7569237480/
Just a suggestion, Check your spelling.
Jewson (author)  Mighty Mackinac2 years ago
Sorry about my spelling I just really suck, the best I've ever got in English at school is a C,
firesirt Jewson2 years ago
I know the feeling (sigh) :'(
yaeh me too
Hay do u hav any video regarding hw to actually make it???
Jewson (author) 2 years ago
ill post some more detailed photos soon
so sorry for very bad bad bad spelling
lemonie2 years ago
Does this work for "knocking out" anything, i.e. have you broken a calculator with it yet?

L
Jewson (author)  lemonie2 years ago
I haven't yet attached it to a disposable camera flash circuit, the one in the pic is a Brocken one but I have connected it to a 12v batterie and if I put a metal object in the magnetic feild it vibrats so much it fall off my hand. I recon if it is connected to a 330v capacitor it will be able to break a calculator Easley.
waldosan2 years ago
this is an interesting device, i have always been interested in the possibility of moving electricity using wireless means, I don't quite understand how giving the coil a bigger radius while neglecting the surface area actually increases the EMP effect but i would suspect it has something to do with the actual collapsing of the magnetic wave.
rimar20002 years ago
Interesting. For what is this device?