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How to make a 5$ Pocket Stun Gun

6966 ratings | 227378 views
First off, sorry this is a weekly science video, it feels like a cop out ( due to the fact that it is practically nothing new ) so hopefully I'll be able to get some experiment video or something out this week, ( it was a bit busy this past week with the end my my school semester because I am a procrastinator ) Anyways... Leave a comment telling me what you want to see! Also any critique is appreciated! ( besides talking too fast... don't worry I am working on that :P ) Intro Made by Tate Storey, check out his channel! : http://youtu.be/dCyHF8QJzHU Follow me on Twitter for ...fun? : https://twitter.com/Keyst0neScience •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Mini portable Jacob's ladder : http://youtu.be/QuofggSn7rA Microwave oven transformer: http://youtu.be/21aR8RezdQ8 High voltage power supply : http://youtu.be/k5uNa13Li1I •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Inquires: Hobcoman@gmail.com •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Music : Broke For Free - Night Owl Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/ •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• Twitter: @Keyst0neScience Facebook : https://www.facebook.com/KeystoneScience/
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Text Comments (718)
ExploringAndMe (4 days ago)
I'm still not technically eneugh to buildx this
Nishant Mandy (5 days ago)
Please give link to buy boost converter
Liam (6 days ago)
talk more slowley
AFCA020 (6 days ago)
just skipped because u talk that fast! :)
Edward Piner (7 days ago)
I am a new subscriber this is the first video of yours I have seen ,I love this kind of stuff very informative , much love and respect from Hamilton Ontario 🇨🇦✌
Anton Luka Šijanec (8 days ago)
刘宇龙 (11 days ago)
对吧,好人也不想双手弄髒丫,更何況壊人为财,也不想双手血腥,对吧,只有喜歡血腥之血的悪人才会,对吧。 对了,哪个才是有吱吱声,而鸽子可以有吱吱嗡嗡真的星际剑的声,劃破空气的声,,,喔。
stuff morestuff (12 days ago)
Its perfectly legal it's not a stun gun it's a electric fire starter.
ian allyn (12 days ago)
I shocked my friend in the ass he jumped real high
Northern HillBilly (13 days ago)
never show your face but good job
Its Christion (14 days ago)
How can I fix this?
Its Christion (14 days ago)
Without the nails the spark works fine but when I add the nails the spark isn't as good it barely shows up
Kirill Obraztsov (23 days ago)
can you make a vidio on how to overclock a 4 inch plasma globe without spending over 35$
Kirill Obraztsov (23 days ago)
ok so i just found out the hard way, this device should NOT be used to burn off hair on your balls
ronald phillips (1 month ago)
Yadda yadda yadda. You need to take a breath man or heart attack happen you know.
flashlightbug (1 month ago)
I love your videos! I especially appreciate the pacing. Too many videos are filled with people saying, "umm" and "uhhh" and taking FOREVER to get to the point. Your videos get right to the point!
C (1 month ago)
You didn't explain how you were able to use 9v
Keystone Science (1 month ago)
king love (1 month ago)
Dude slowdown tf
cypekpl cat (1 month ago)
How is the current converted to ac? Cmiiw but transformers dont work with dc
flips dchannel (1 month ago)
You should use this to do this https://youtu.be/a9yYu-ZM1S0
Gavin Lawrence (1 month ago)
In a sect case is this fatal
Paul Ram (1 month ago)
I used a black flag electric fly swatter and made one, I've also used one and replaced the capacitor with a stronger one which kicks like a mule.
Taylor scieout (2 months ago)
You should have a link to the ebay site
Atomik Patates™ (2 months ago)
Please talk slowly man.
Tory Pryce (2 months ago)
hey could u make a version with a safety switch and house it in a pvc pipe for extra protection?
pdiddster12345 (2 months ago)
Thanks for the cookie
John F (2 months ago)
Joey Drake (2 months ago)
please do a guide on how to strip the rubber of off very small wires.
Eric Carr (2 months ago)
Can you show how to make a stun glove version of this that would arc across all 4 knuckles I've looked into purchasing a manufactured one and the ones with gloves that have the arc points on the knuckles with button switch are running 300 to 350 dollar's a complete ripe off in my opinion especially after seeing this video I know with your knowledge you could build a easy one for a child's allowance so if you could make a video showing how I know me and a lot of other's would be greatly appreciated thank you so much in advance
Peter W (2 months ago)
You talk WAY to fast!!
SONIC BooM (2 months ago)
no there is no voltage multiplier in it just a capacitor
Shaun Elliott (2 months ago)
Will this work if I use Solder instead?
Keystone Science (2 months ago)
Yeah, it will
Jaxon Lawson (2 months ago)
Doubling the boost converters would just all around be a bad idea yes?
Keystone Science (2 months ago)
Yeah, probably... I’ve seen ones where they double them up, but they omit the first section, connecting 2 of this would just fry the second one
CharlesAlexLavoie (2 months ago)
What a good idea
Wookiegacha ! (2 months ago)
Is this legal in England
Hao Li (2 months ago)
Wait I can use two triple a battery too right?
RamenNoodleSoap (2 months ago)
can’t stand his voice
Keystone Science (2 months ago)
Then sit
Cade Myers (2 months ago)
I can't quite get it...
Tage Walters (3 months ago)
This could be used for more than just a purpose of self defense or inflicting any kind of harm on others but for a tool to possibly help you survive.. If you have the knowledge or know-how use it when need be.
Tage Walters (3 months ago)
Did Bill Nye The Science Guy have a kid? 😂
Billy The Kid (3 months ago)
Will this deter an attacker?
Mario Perez (3 months ago)
I received a nasty shock when I saw him hitting cutters with a hammer to get through the nails. Still, what he does with his own tools is his business.
Catch Me If You Can (4 months ago)
What is that boost converter is it called capacitor link to buy ??
karan rana (4 months ago)
Where can I buy this boost converter
Richard Aguilar (4 months ago)
where can we these boost on electrical appliances?
Richard Aguilar (4 months ago)
i mean where to find it
Neil Thomas (4 months ago)
This cunts sniffed up! Case of the verbal diahorea!
Omar Alispahic (4 months ago)
Mine one doesnt work on 9 volts when i apply 9 volts it just doesnt do anything
Senshi (4 months ago)
0.75 speed sry i cant handle it
Jack Morgan (4 months ago)
You can make a taser out of a disposable camera.
Jack Morgan (4 months ago)
You should make a video making a magnetic bearing that Larry Spring invented.
yes no (4 months ago)
can you make a homemade boost converter?
Vincent David (5 months ago)
There's something I like here, it's that you explained the science behind it
AndersenPoel (5 months ago)
Built this. Worked. Broke. Took it apart. Rebuilt it. Broke. Took it apart. Rebuilt it. Broke. Took it apart. Rebuilt it after the transformer stopped working. Waiting to rebuild it before it breaks again. Lemme know what r thots r on why it has just stopped working after a few uses. Am I holding the button two long?
AndersenPoel (5 months ago)
Well I didn’t use nails and kind of modified the build just to make it a little nicer looking. And instead of nails, I used an old plug. I took the two prongs that go in the wall and at first bent them closer but found they were too thick to produce an arch. So I added solder to make it a bit pointier so ur will arch and it worked! But I found every once and a while it will light up where I connected the two red wires to the plug (like u did the nail) rather than the end of the plug prongs. So it stopped working all together till I took it apart just now and it still makes the arch but only with the wires, no plug. Do u know why it won’t follow thru to the plug prongs?
Keystone Science (5 months ago)
I have no idea, mine has never broken, are the nails too far apart?
InfinXGamer (5 months ago)
I love how my boost converter completely failed, i hooked it up correctly and absolutely nothing happened, i tried cutting my high voltage wires short, then using the recommended voltage, then different 9V battery's, switches, and even a new converter. Nothing, not even a spark when i grab the high voltage wires
Bin-Yamin Ali (5 months ago)
u talk too fast lol u make good vids
James Marshall (5 months ago)
Very informative, I appreciate that you not only show how to make the device, but explain how, and why the device works as well.  Thx for the video.
Sentient2x (5 months ago)
You need more detailed info. Like, how far apart am I supposed to put the nails. You say it’s important but just give a visual guide. Seriously?
Vaney (5 months ago)
is this safe for a kid to do?
TRUE ADRIEL (5 months ago)
This guy voice is very annoying.
TRUE ADRIEL (5 months ago)
Shut up
Keystone Science (5 months ago)
But... but...
Kaming Lau (6 months ago)
Can't you just use a capacitor instead of a converter?
Electric (6 months ago)
thanks for the cookie
Osama Bin laden (6 months ago)
I am still trying to process everything that you just said
Simon Jack (6 months ago)
Can one of those boost converters handle a Li-ion 18650 2200 mAH 3.7v 8.14Wh battery ok?
Alex Dumbreck (6 months ago)
this is an awesome youtube channel
Alex Battigelli (6 months ago)
but I want a taser to shock my friend not to potentially kill them
NitroJon Science (7 months ago)
Awesome video... These produce high voltage but basically no current, right? Could a few of these be put in parallel and series to make a high voltage power supply for experiments like the water bridge.
NitroJon Science (7 months ago)
Awesome video... These produce high voltage but basically no current, right? Could a few of these be put in parallel and series to make a high voltage power supply for experiments like the water bridge.
John Bryan (7 months ago)
Lol I blew mine didn't know should've watch u instead, great work👍
Can u give me a boost converter
Currently Ascending (7 months ago)
Fascinating, but you should really include a few grand for insurance, medical bills, and a lawyer.
eleazer musonda (7 months ago)
thanks help me a lot with my school project
TheJuiceBoxOfAwesome (7 months ago)
how do you lower the voltage
Suprio Konar (8 months ago)
Where can i get the boost converter mate?
Nigger Penis (8 months ago)
Nigga help me. I solder the battery top to the red wire and it’s not sticking. Do I just put tape or hot glue. (The metal strip came off so I wanted to solder it back on)
Connor Grow (8 months ago)
So how could you use a higher voltage battery than what it says you can use?
shaun ozzyoz (9 months ago)
Do a vid on where ucan salvage bits from.
Jean-Valéry Thoraval (9 months ago)
love your videos! but dude, breathe! calm down, why rushing so much?
Phil dc (9 months ago)
Do you breath between words??
Ashu Sharma (9 months ago)
Hey ,ur awesome i am subs. You
ultrahandsomman yo (9 months ago)
hey could you help me out with the specifics of this boost converter ... i want to buy the right one on ebay hut there are a lot and i don't know which one to order ...
Lucas Wills (10 months ago)
Mahela de silva (10 months ago)
i tried it, but it doesnt spark like your video shows
the north port assassin (11 months ago)
Can you make a hidden blade taxed
brandon Cantgetright (11 months ago)
Great video like how you explain your tech while talking fast hate watching videos that take for ever cause the person talks too slow, also I know your use of odd objects for tools like pounding notes with mini tv's and cutting nails with tin snips definitely not recommended but on the other hand people need to understand a good mechanic will use what ever he can to get a job done if they don't have the required tool
mihail saltirov (1 year ago)
Good job but ive think u e can u try make a stun gun compact from small flashlight also use the same batterys for the flashlight https://www.amazon.com/Portable-Handheld-Flashlight-Adjustable-Resistant/dp/B00R5VM3FM/ref=br_lf_m_aaya2u65njtj88u_ttl?_encoding=UTF8&s=hi u can check it its usualy more bigger price i lost mine actually while ago sems like im lucky :D but i was thinking u can add 2 tubes in + with 2 wholes on the glass idk if its glass or plastic and idk if its shock proof but if the ring is plastic and the up side 2 like old one i had is good one to try idk do what u gotta do now its like 9 bucks
Caleb VanMiddlesworth (1 year ago)
Can you send me a boost converter
Angelica Argueta (1 year ago)
Can. You. Give. Me. One
Doc Worthington (1 year ago)
Entertaining & educational, but, dude WTF? Do you snort a line before each take or what?!
Alex Connor (1 year ago)
Why do u need to connect the black wire to the switch can't u connect the red wire directly to it
Evan Ro (1 year ago)
I have no knowledge of volts and amps or whatever, but would one or two of these power the iono craft?
Moto Mulisha (1 year ago)
Converter: https://www.ebay.com.au/itm/DC-3v-6v-to-400kV-400000V-Boost-Step-up-Power-Module-High-voltage-Generator/322651902766?rt=nc&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D49574%26meid%3D5ff5fd0e0c7f43988c12cef8006d0491%26pid%3D100005%26rk%3D1%26rkt%3D2%26sd%3D202020417622&_trksid=p2047675.c100005.m1851
chris toey (1 year ago)
A well made video, two thumbs up dude. No time wasting, no hey what's up guys welcome blah blah. Although the $ sign after the number is a bit irritating 😉
Terminator Gen 9000 (1 year ago)
How does a 6v converter works with a 9v battery
Terminator Gen 9000 (1 year ago)
I have used that design to make an electromagnet
QuantumQuarkee (1 year ago)
I like how you sound so happy and positive while you’re making dangerous weapons
Alco Golic (1 year ago)
I will use it to shock someone as a joke.
Bennett Simpson (3 months ago)
Mel Colp (1 year ago)
hmm nice , it will only cost me $5.00 to welcome some new Syrian immigrants into Canada.
stuff morestuff (12 days ago)
What us Canadian taxpayers are paying right now to bring them over they end up paying back a large portion of it as aswell continue to pay taxes while they live here in the long end it's a major win bringing immigrants and refugees here the main reason our government is doing it is due to the fact of the large amount of taxes needed to pay for Canada's current retired seniors problem which is realated to the baby boom right now their is simply not enough money to pay the seniors even though they have paid into the canada pention fund although the one thing about the mass immigration canada is trying to get that I dont like is the amount of immigrants that get Canadian citizenship then go back to their country and when needed return to canada most of the time to abuse our healthcare. Im really sorry for my grammar and sentence structure I was trying to type fast.
Bennett Simpson (3 months ago)
a bit racist bro
shaun ozzyoz (6 months ago)
Mel Colp make. A few breakdance for me greetings from the UK.
Mel Colp (9 months ago)
+shaun ozzyoz thanks Shaun, I'll certainly give a few for you! unfortunately their breeding like rabbits and now bringing their family over.. Canada needs to deport many of them back.. Cheers to UK from Canada
shaun ozzyoz (9 months ago)
FECKING GOD MF! (1 year ago)
Try connecting boosters in series.
Erik Pettersson (1 year ago)
I made it and it works great.

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