Build a World's Smallest Electronic Shocker!

Step 4 The beginning of the hardest part ever...

Okay, here we go, build the shocker, the hardest part ever...

Read step by step through this instructable until you get to the end...

Okay, get all of the wanted components, fire up the soldering iron, turn on your work lamp, get a magnifying glass, and HERE WE GO!!!

Also I made a schematic and a design that should help you how to build a shocker...


Step 0: Start with a five pin transformer.


UPDATE - 9, October, 2008
I have improved the schematics, I hope it is easier for you to read.

Comments

[resistanceisfutileiflessthan1ohm]

could this work without the 220 ohm resistor because i have tried it many times but failed just as often. i think it may be more successful without this resistor as it would separate the primary and secondary coils. what you have shown appears to be indentical to the circuit already in the camera which does work so why won't mine. please try and explain if i am going wrong anywhere. thanks

[Krb686]

I don't understand how this circuit works. I have seen other shocker circuits recomposed from old disposable flash cameras that are connected in entirely different ways. In your circuit, it looks like flow initially travels into the secondary coil through the 220 Ohm resistor at the center tap, and then into the top through the capacitor and diode. Then, it flows to the base of the transistor which allows current to flow through the primary coil. At this point I'm confused. How does this step up the voltage? Also, how do you have an output of 450V when the diode prevents electricity from travelling in that direction and it sure as hell doesn't travel through that 220 resistor.

[dog digger]

The transistor is making the 1.5v input oscillate, making it square wave. The transformer steps up the oscillated voltage to 450v. The diode rectifies it to half wave DC and the capacitor smooths it out

[prasanna_lanka]

Hi all,
Can you pls tell me what is the Transistor number used in this ?
[e-mail]
Thanx a lot in advance

[pedro120495]

Man, i have one of a new printer whit 9pin and other things, can i make something whit those, can you help me?

[MiitheWii]

plasmana can you tell me what type of diode you use and if I can use others

[Plasmana]

I think it was F1, I am not too sure... Use an 1N4007 diode instead.

[somebody12345]

i even saw in the picture- it was an f1

[jpoopdog]

what a coincidence, i cant find any in the cmeras but just bought about 500 for another project (it only reqired 1 but the store only sold in bulk), also, and im asking you plasmana, will a 6 pin transformer work, because i cant find a single camera that uses 5 pin transformers, only 3 pins and 6 pins

[dunnos]

I don't know if you still want to know this, but a 6 pin one will work too.

Just analyse the circuit and find out what pins are used for what. My 6 pin transformer had one unused pin.

[techno guy]

Couldn't you do the same thing but bigger if you just cut off the huge capacitor from the original circuit board and touch the contacts where the capacitor used to be?

[sousa]

Hello Plasmana! Can you tell me the impedance between pin4 and pin5, and pin5 and pin3? Thank you. Good tutorial by the way! Keep it up!

[Plasmana]

Hmm, I don't know the impedance of this transformer because I don't have a impedance meter, but I can tell you the resistance. Pin 3 and 5: Between 270Ω to 330Ω Pin 4 and 5: Between 271Ω to 331Ω

[jpoopdog]

that cant be right, because i have just tested all the transformers i have harvested,
and they all give readings like this

1-2 = 0.7ohm
2-3 no reading
3-4 no reading
4-5= 0.4 ohmand these are readings i get from transtformers that i cut out, not desolder.

[sousa]

Thank you! Regards.

[Plasmana]

No problem!

[joehudy]

wold somthing blow if i used a 9v

[Exiumind]

15 year old, and u know all that about electronics =O cool

[GianniMora]

???

[godofal]

I opened up a camera, but the transformer has 6 pins, how should i connect it? one of the middle pins isn't connected to anything as far as i can see, but it could be connected to something inside the transformer... anyone any ideas?

[kiss my donkey]

Mine too

[godofal]

I found out a way: just read trough all the pins, the one that doesn't do anything (one of the middle ones with me) is the one u don't use ;) anyhow, my taser still doesn't works, i measured everything, and everything works, even the transistor (broke 2 of them :P ) but the film capacitor doesn't give any readings, none of the 3 i have at least, is this accurate?

[joinaqd]

Plasmana if you can, please open one of the transformers and please write down the primary and secondary windings and how many turns they have.I know from Wikipedia that the transformer is a center-tap transformer(meaning it has a wire connected in the middle of the windings but i dont know on which one,primary or secondary?). If you can, please open one up and examine it and send me your observations so i can try to make it using a bigger ferrite core and more windings for better and higher voltage.(Im currently out of cameras, so im trying to use a bigger ferrite transformer core, like the one from ThermoElectric's Inverter). Thanks

[izidor7]

you can take one or the bouth of the power transformers from an atx psu. there you have a 10W 5V trafo... primary 320V and secendary 5V *2 and connect it just like this tiny one.... one trafo , (the smallest of the three is an gdt, and you can't use it for this things...) The biggest is a power trafo... primary 160V and secendary's are 3,3V 5V 12V ... so you can combinate... Depending on the power of the psu you have ether the bigger or the smaller transformer, in the up to 400W are the smaller ones... , I truied the big transformer and i got maybe over 1.5 kV... the fact is it works... But i won't tuch it. no thanks...

[sharpiexx7]

i have a 4 pin transformer and a 7 pin witch would be better/stronger to use

[girrrrrrr2]

a 5 pin

[varvadross286]

i have a 4 pin transformer that i got from a kodak camera. will that work or does it haave to be 5 pin?

[geeklord]

The second circuit diagram helps, because i can identify the different pins.

[Plasmana]

That is good.

[geeklord]

Yea, i think my Kodak transformer has the secondary coils between pins 1&2.

[geeklord]

scuse me, primary coil between pins one and two.

[girrrrrrr2]

mine has 6 pins... 4 on the top and 2 on the bottom... help please? all that i can find have this config.

[nictinkers]

Use a multimeter to find out which pins are connected, using the circuit diagram in step 4 as reference. That will give you an idea of which are the primary (pins 1 and 2) and which the secondary (3, 4 and 5). The resistance between pins 3 and 5 will be larger than the resistance between 3 and 4.

[Plasmana]

Unfortunately, the 6 pin transformer won't work, you need to find a 5 pin transformer.

[girrrrrrr2]

ok i looked at it somemore and it seems to have a pin that is not attached to anything at all... um what i am asking is tat if i rip it out do you think it would work, because if i do it looks alot like yours, without the extra bit of plastic...