Build a World's Smallest Electronic Shocker! version 2.5

Picture of Build a World's Smallest Electronic Shocker! version 2.5
It is good to know if the tiny shocker is on or not, by adding a wonderful invention called the "LED", so you don't risk get bitten by the shocker again!

Disclaimer: This shocker can be dangerous if used improperly, it gives out about 400 to 450 volts, so I am NOT responsible if you or anybody are injured or killed by the shocker, the responsibility is yours...

Improved instructable!
I have been asked by comments and email how to attach a LED to a shocker to indicate it is on. So I then decide to make another instructable how to do that.

And, I have copied and pasted everything from my original shocker instructable onto this instructable and greatly improved the text on every step, also added more steps and replaced some pictures. I am hoping it would be less confusing to you and understand the project better so you can have an higher success in completing this project. :-)

If you do find anything confusing or an error on this instructable, please let me know and I'll fix it.
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Step 1: What type of disposable camera should I use?

Picture of What type of disposable camera should I use?
  • The best disposable camera you can use for this project are the "Boots" or "Polaroid" types, because they have everything you need.
  • The "Kodak" type is a bit more difficult, you need to find the type that uses an LED indicator, NOT a neon bulb indicator, those types will not work. Also, the LED type cameras uses SMD resistors, so you will need to find or buy one 220 ohm and one 100 ohm resistors.
  • All other types of cameras like "fuji" ect. will not work because they have an different and/or more complex circuitry.

Step 2: What else you will need from the junkbox and the toolbox...

Picture of What else you will need from the junkbox and the toolbox...
Hardly anything is needed for this project but the tools, all of the important bits are found in the disposable camera...

  • Some bits wires
  • AA battery holder (or other types of battery holder)
  • Solder

And the tools...

  • Soldering iron (with a micro-tip if you have one.)
  • Hot glue gun.
  • Desolder pump (it makes the job much easier, but you could probably get away with out one).
  • Flat-head screwdriver.
  • Wire strippers.
  • Wire cutters.
  • Pliers.
  • Vice (to hold the shocker in place while soldering)

Also, if you don't know how to solder or having trouble, this guide can teach you how to solder and other cool little bits that are good to know.

Step 3: Slaughter the camera!

Picture of Slaughter the camera!
Now this is going to be a fairly dangerous part, open up the camera and get the circuit out safely without getting shocked by the capacitor...

First, pry open the camera's case apart with a flat-head screwdriver or just use your hands if you like, but you are more likely to get shocked by the capacitor.
After you taken the camera's case off, discharge the capacitor with a insulated screw driver, and you may get a big loud spark, and after that, the capacitor is discharged... (Use a screwdriver you don't like because a charged capacitor will leave a fairly large scar on the metal part of the screwdriver!)

Also, to avoid getting shocked by the capacitor, wear plastic or thick gloves.

Great! You had done the dangerous step on this instructable! Some people say this is the fun part because you get a nice big and loud spark!

Step 4: Gut the camers's components

Picture of Gut the camers's components
Okay, after you had took apart the camera and discharge the capacitor...
Desolder all of the wanted components off the camera's circuit (I desolder all of mine off of the camera board).

The components we will need from this camera are...

  • Ferrite transformer with five pins
  • 22nF film capacitor
  • Transistor (NPN type)
  • Diode
  • Red LED
  • 220 ohm resistor - Color code: Red/Red/Brown
  • 100 ohm resistor - Color code: Brown/Black/Brown

As you might have know, the ferrite transformers has different tape colors, it does not matter what color they are, they are all the same. I don't know why they have different colors...

The 330v 80uF capacitor can be fun to use, you can make a capacitor bank with a bunch of 'em and makes some big bad ass sparks or use it to make a powerful coilgun on this instructable! Coilgun Handgun

You can do some really interesting light effects with the xenon tube if you put it near the plasma globe...

Also, be very careful when desoldering (and soldering) the transistor, they are quite heat sensitive because they very small. So try desolder it quickly otherwise the transistor will burn out without showing any signs of being dead. Using the dead transistor on the shocker will give you some very low output voltage results like 0.41v or something like that. This makes some people think this instructable is a scam, it is not, it is because they burnt out the transistor without knowing it...

To reduce the risk of a burnt out transistor, clip an alligator/crocodile clip onto the leads of the transistor (or the case if there is no room to put the clip on the leads). The clip will act like an heatsink, this should give you some more time to desolder the transistor.

Step 5: The difficult bit...

Picture of The difficult bit...
Okay, this is the difficult part of the project, making the shocker itself...

Because we want to make this shocker small, it is a good idea to use a magnifying glass so you can see what you are doing and avoid make any solder bridges.

I also made a schematic and a design to show to show you how the shocker is made.

Start with the five pin ferrite transformer.

It is important that the transformer has 5 pins, if the transformer has 4 or 6 pins, it will not work for this project.

Step 6: Solder on the transistor

Picture of Solder on the transistor
Solder the transistor's base lead to the pin 4 of the transformer and solder the transistor's collector lead to the pin 1 of the transformer.

The transistor's emitter lead is the ground.

Step 7: Solder on the 200 ohm resistor.

Picture of Solder on the 200 ohm resistor.
Solder one lead of the 220 ohm resistor to the pin 2 of the transformer and solder the resistor's other lead to the pin 3 of the transformer.

Step 8: Solder on the diode

Picture of Solder on the diode
Solder the cathode lead of the diode to the pin 5 of the transformer.

Step 9: Solder on the film capacitor

Picture of Solder on the film capacitor
Solder one lead of the film capacitor to the anode of the diode and solder the other lead of the capacitor to the pin 2 of the transformer.

If the capacitor's leads are too short (like mine) to reach pin 2 of the transformer and the anode of the diode, just solder some some wires on the leads of the capacitor to make it longer.

Also, the film capacitor has no polarity (like the resistors), so you can connect it any way round.

Step 10: Solder on the 100 ohm resistor

Picture of Solder on the 100 ohm resistor
Solder one lead of the 100 ohm resistor to pin 3 of the transformer.

The other lead will be connect the LED.

Step 11: Solder on the LED

Picture of Solder on the LED
Solder the anode lead of the LED to 100 ohm resistor's lead.

Then solder the cathode lead of the LED to the transistor's emitter lead.

Step 12: Wires...

Picture of Wires...
Solder the ground wire (black) from the battery to the emitter lead of the transistor and the cathode of the LED.

Solder the positive wire (red) from the battery to the pin 2 of the transformer.

And solder the high voltage output wire (blue) to the cathode of the diode and the capacitor.

Step 13: Bend everything down...

Picture of Bend everything down...
Then, gently push all the components onto the side of the transformer and use hot glue if needed.

Step 14: Construction on shocker completed and being tested..

Picture of Construction on shocker completed and being tested..
Okay, now you built your shocker and it is time to test it...

You should get between -400 to -450 volts out of the shocker. My multimeter is reading -438 volts from my shocker.

If yours does not work, calm down, don't get so angry and blow off your head about hours of work for nothing.

  • First, check your shocker closely, are there any solder bridges? If so, remove them and replace the transistor.
  • If it still does not work, you probably burnt out the transistor from putting the soldering iron on its leads for to long, replace the transistor and don't keep the soldering iron on its leads for to long again. If it still does not work...
  • Then the ferrite transformer's internal wiring might be damaged if you went rough with it trying to get it out of the camera board. Build another shocker, because you cannot repair a tiny transformer (unless you have the proper equipment to do so!)

And if it STILL does not work, well I guess you can you can go very angry, and smash up the shocker with a hammer and get over it. Or try make another one...

Step 15: Two ways to attach the shocker to the battery holder...

Picture of Two ways to attach the shocker to the battery holder...
Maybe more...

You can connect the shocker in a crude and simple way by using lots of wires... However, it would be quite difficult to use with all those dangling wires.

Or you can spend a little more time soldering and gluing the shocker and switch onto the battery holder to make the shocker more portable and easy to use.

Step 16: Have fun electrocuting people and don't get caught by the police!

Picture of Have fun electrocuting people and don't get caught by the police!
Okay, now that you had built a shocker with a useful LED indicator, what is stopping you from going outside and electrocute your friends (and perhaps strangers)? Also, watch out for police who is looking for trouble!! (That wouldn't be good!)

To use the shocker, the victim must touch the live -400v wire and the +1.5v wire to get a unpleasant shock...

The pain of a 400v shock is the equivalent of getting a really nasty static shock from a car. But the shocker gives a continuous shock...
Also, if you want the shocker to give more painful shocks to the victim, you just simply increase the input voltage!

So, if you give it:

  • 1.5v input = 450v output.
  • 3v input = 900v output.
  • 4.5v input = 1200v output.
  • 9v input = 2700v output. (OUCH!)

Beware the higher voltage you give to the shocker, the sooner it will burn out. If you give the shocker 9 volts, it WILL not survive longer than a few seconds, or it may immediately blow up... It is the best if you feed your shocker only 1.5 volt, it may hurts less, but it won't burn out.

There is one funny idea that Kiteman thunk up...

What you can do is wire up the shocker to a battery with a switch and make the 400v wire and the 1.5v wire long and then box it up in a small plastic case (except the long wires) to prevent shocking your self...

Then put the shocker in your pocket and have the long wires running down your jacket or long sleeve and put a insulator like a bandage on your finger tip to insulate you (so you don't shock your self). Then put the bare ends of the wires on top of the bandage and tape it down.

And now you are for some fun! Go into the crowded school corridor and touch people with your electrified finger tip, you might not want to touch the girls as they have a bad habit of screaming their head off if they get an unexpecting surprise, but go ahead and touch them if you want...
Or maybe go into the dinner queue and shock people as they slap the mashed potato on his/her tray...

So, what other funny and things can you think up for this small shocker?
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van de graaff made it!1 month ago
I ve build it but it doesnt work. the led Lights on but no voltage at the output.
Do u know why? please help. .. thx

Are you using a burnt out capacitor?

Constructed23 days ago
I made it! Thanks for posting this! I put in a box with foil pads and wrote "balance enhancer" on the side! People keep trying to touch the pads while standing on one leg!
15, 11:58 AM.jpg
Joao PauloS1 month ago

You can pass me how this circuit because I am developing a project that will use a similar circuit.
thank you

I want the proper specifications of transformer.
RoryS28 months ago

do you know where i can get these disposable cameras other than buying one ($9.35 at Walmart!!!)

I got like 20 for free at wallgreens

WWWHAAAATTT! i was just there! Dangit!

Just ask them for some used cameras, they already developed the film in them and usually you can get a few of them for a few bucks. All the stores do with the cameras is return them to the factory to be recycled.

i tried asking the lady at the photo center at walmart and she said that the camera manufactures now require used cameras to return to their "Warehouse" for 'prossesing'. so, in short, i wasnt able to get a free used camera.
Just in case, look at other stores that develop photos. You might get lucky and end up returning with a few of them. if not, try Amazon or Ebay for them.
Jackc63 months ago

can you use recifiter diodes

WillE19 months ago

and does this charge then shock you or continuously shock you?

It continuously shocks you. If the capacitor was attached it would be one big shock

afshaanmaz1 year ago
I plan to use this as a self-defence device.... Any suggestions.....?

It will not have the power to stop someone, this is more like one of those prank tazers


willedwards999 months ago

can you make instructions on how to attach a momentary push button?

It's very easy, just solder the wires onto both of his shocky leads, and then solder up the momentary switch

| |

+ +

+ +

| |

The +'s are the leads on the switch and the | is the wire

I'm disappointed. Mine gives out ~260 volts. I had to use the whole PCB that's in the camera as it has more parts than your camera. Tried using only the parts described in this instructable but it wouldn't work :(

I'm not disappointed in your instructable, I'm disappointed in the lower voltages of these cameras.

Constructed5 months ago

Wow! Great Instructable, very easy to follow and extremely well written! I just made this and put it inside a small PVC pipe. Thanks for posting this!

war14006 months ago

this is a map i find with 1f16 and 2sc5607

war14006 months ago

hey bro i made it but dont work!!!????

i search in web and find a map.

same as your map but Diode 1f16 and transistor 2sc5607

Name of the diode?

Can i used D965?
thanks in advance :)

hey bro i made it but dont work!!!????

i search in web and find a map.

same as your map but Diode 1f16 and transistor 2sc5607

war14006 months ago
Divergence7 months ago
Would this work http://m.ebay.com/itm/321095009296?cmd=VIDESC for the transformer
Divergence7 months ago
Hi what type of diode is being used because I'm buying my parts separately
Divergence8 months ago
does the disposable camera have a battery housing/holder that could be used for this?
willedwards999 months ago

can you use the other capacitor? because then you'll get way more power!

sycosquirl189 months ago

A great disguise is a small mint tin; I used one from starbucks. You can fit all the components inside, including the battery. I affixed the leads to a 9v battery connector. When you flip open the top of the mint tin, the connector is exposed and facing up and very easy to press into skin.

Victor8o510 months ago

I disassembled a kodak camera and I saved the components but I couldn't figure out how to connect them again, thanks for the instructable!

Also can I use another transistor, a 2222 for example? Or the high voltage will make it useless?

As long as you dont put capacitors on there its ok.

i am using a d 965 transistor but the shocker is not working although the transistor is fine

JacerP31 year ago
Hello! Could some help me figure it out how to make this shocker "less powerful" by discharging, lets say, 50V instead of the 400-450V? How do i do it? Should i simply increase the value of the resistor? Or should i use a different capacitor too? Thank you!

Reduce the amount of turns at the high voltage coil of the capacitor, this is quite hard to do because you'll have to disassemble it completely and unwind and rewind the coils.

The resistor would be an inefficient way to do the same thing.

PD: don't expect a steady DC signal.

Seriously, 9V input is 2700V output :O When I touch this thing, I'll be dead by now!

While it'ss certainly enough to hurt you, voltage alone will not kill you, stun guns can reach hundreds of thousands of volts, but at a very low amperage. When used on someone as they are intended, the risk of permanent damage or death is extreamly low(unless the attacker has a heart condition, but how many assailants with bad hearts can there be?). I am curious about the amperage output from this device, if it's 400-450volts with a .5 amp output, then that is an issue and it needs to be greatly reduced. It only takes .1 mA to stop your heart.

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