Make your own Crude Shaking Torch (Emergency Flashlight)

[@elbagrau]

It feels great when I understood what a full bridge rectifier is. Thanks to Mehdi Sadaghdar (ElectroBoom). Thank you for you work, both of you.

[@random191]

I really like this circuit, it uses lots of concepts of inductance, AC and DC, capacitance, and much more. It's a really nice beginning circuit to reinforce your knowledge upon basic electronic concepts.

[@TheOswald42]

thank you for using metric system....this help many people...

[@lochinvar00465]

Actually, some of us would really like standard units. All this metric stuff is quite confusing because every number has to be converted before it makes sense.

[@takealook85]

lochinvar00465 "standard" :D

[@RizLazey]

Well most of countries in the world uses Metric system not stupid Imperial system with those BS Fahrenheit and shits

[@evelynsmith9690]

It would be horrifically expensive to convert over in the US. Literally everything is the Standard ( Imperial ) and it would require too much money.

[@theknifesedge57]

@@RizLazey Yes the U.S uses the imperial system... but is it BS? No. It's worked for us this long, and i can assure you that 90% of engineers here use the metric system when doing designs or research.

[@lolbroek1295]

3:38 a FULL BRIDGE RECTIFIER.

[@Enthropical_Thunder]

Electro........ BOOOOOOMM XD

[@pararera6394]

What's so funny about FBR? 🙄🤔

[@ipratikmistry]

@@pararera6394 watch electroBoom video on FBR

[@kruemmelbande5078]

THE MOTHER OF ALL FULLEST BRIGE RECTIFIRES!

[@dampfmaschine399]

@@kruemmelbande5078 Which video was that again? I can't find it xD

[@VoidHalo]

One thing a lot of channels with experiments about inductors fail to mention is that your wire can't be ferromagnetic. I had a lot of confusion and frustration when I tried to make my first inductor coil out of steel wire and all that happened was the magnet stuck to it. Enamel coated wire doesn't seem a common thing to be able to find at any places I've checked, surplus hardware stores, department stores like Walmart and the equivalent etc. And I had a lot of trouble winding coils with stranded copper wire because it doesn't hold its shape it all, so I went with the only solid core wire I could find, which was steel. I'm not even sure it was meant for electronics since it was found with a variety of fasteners and such. So partly my fault, but partly because not a single thing I've ever read about making these or how they work mentions anything about how the wire NEEDS to be copper. Or at least not magnetic.

[@marksmithcollins]

A lot of people don't think steel wire for electrical coil component... You are searching plumbing tools from grocery shelf

[@VoidHalo]

@@marksmithcollins You are responding to a 4 year old comment that is no longer relevant. But thanks for the non-advice anyways. It was really helpful.

[@piwex69]

Great project as always. I would just use extended pipe as housing for all components (by placing one ending cork deeper by an inch) and closing the resulting space with additional one, with only led protruding through it. it would survive camping use much easier.

[@SimplyElectronicsOfficial]

Yet another excellent video. Thumbs up if you think GreatScott! is just awesome! Such an inspiration !

[@tbbw]

This is the lamp you been practising your entire youth for!! Go build it!

[@LowMelaninLife]

You could have used two magnets at the ends such that it they repel the inside magnet. conservation of energia

[@nathanpennell2309]

Now that sir is an amazingly fantastic idea. i love it. i;m going to do this in mine. hell yea

[@Ragingwasabi9000]

dude thats genius!

[@Ragingwasabi9000]

but over time the magnets could weaken because of their constantly repelling fields

[@user-cw9lf3gl6x]

It's silent and won't bump onto the end of the pipe, you're a genius

[@alaaj99]

In "Neodymium magnets" dictionary there is no word such "Time".

[@LeoTakacs]

God your videos are awesome

[@ansarogu]

this is so interesting! the stuff you make looks so simple but then you start with the formulas and my head goes blank.. lol, but i love to watch the outcome of your projects, keep it up!

[@cddum4992]

The brightness is proportional on how skilled are you to that particular moution

[@KennethTanFotografie]

Even the crudeness of the final result looks beautiful. This project will save humanity ;)

[@fuppetti]

The thumbnail looks like you've made a sonic screwdriver.

[@kyoudaiken]

WTF? :D

[@kyoudaiken]

***** Ah okay. Never watched this series.

[@kyoudaiken]

ProCreeper 2000 That might well be the case. :)

[@phs125]

Reminder to fellow whovian. Tomorrow is Christmas. So. Don't forget to subscribe to the official doctor who KZbin channel.

[@hyenapeacekeeper2220]

Been planning on a kinetic charge phone case and I stumbled across this video. I think this video would help quite a bit with planning and design, thank you so much!

[@rubabmubarrat]

You could have used two springs at the end or two magnet in opposite polarity. I want a remastered version of this project and video

[@НикитаЦыпанов]

Maybe, maybe. It's really super cool! I also have a new video: coil gun new test kzbin.info/www/bejne/in7WfXx3otqohZI kzbin.info/www/bejne/Zp-wqqluaMSsma8

[@electroimpex8897]

Good Job, but you dont have to remove the protective layer of the copper whire with sandpaper, you can also heat it up with solder, and it will be smoked away easyly.

[@RandomHacks]

1:43 there is no need to go back to the starting point just wind from one side to the other the coils turn out much neater :)

[@JOELwindows7]

[Fixed!] Great Scott! You gave us new crafting recipe(s)! A set of Joule thief and crude shaker! Error fixes: what's wrong with you auto correct, don't you want to support multi-language?! - ~~Create~~ -> *Great* - ~~have~~ -> *gave*

[@JOELwindows7]

have*

[@JOELwindows7]

gave*

[@JOELwindows7]

Juan Rial I hate auto correct!

[@JOELwindows7]

Juan Rial anyway thx for noticing me! Now The Comment is fixed!

[@thepaper888]

2:24 Please forgive my ignorance. How can I learn this language? I know nothing of this field, but I think of it all the time in my mind. This is literally my attempt at learning into this world. How do I come to fully understand this knowledge? What would it take for me to be as knowledgeable as you are in this field? What do I study? How can I get to the point where I fully understand all inner workings, so that I may design my own something? Enough to now what to/not to do in all scenarios, to troubleshoot and adjust as needed. Obviously I'll go through and consume your channel. What books or study guides do people use for finals for the most advanced test, acquiring their masters or doctorates? How can I reach said level myself? Essentially how can I build my own equivalent of a tesla vehicle by myself?😮 What would it take to make a technology that will forever after reshape humanity for the better? To at least be able to properly create the blueprints for it? I would be grateful to any and all advice available. I just want to know what is the highest level, how to get there. Basically my plan is to eventually use multiple fusion energy to create false perpetual motion. Thank You for your time. Unlimited Power.

[@aflahaliafi1898]

So simple and so effective.

[@joelhowell5402]

I always love your video endings. They encourage myself and others to keep on creating things. I love your videos, hell we all do. Keep uploading them!!

[@thomaskeystone6613]

No idea what most of this means but I still love this channel. Its great.

[@bruhdabones]

I live in Wisconsin. There was a very bad storm yesterday, and many trees were down in my neighborhood. A few thousand without power in my city. My house lost power for 2 hours and 15 minutes. This would be very useful! I have a similar circuit based off a printer motor, but my 100uF cap only makes it light up for about 3 seconds.

[@bruhdabones]

A motor from a printer

[@TrollFaceTheMan]

What was the Voltage in the Cap? If you are charging it to way less Voltage than it's rated the capacity is going to be reduced significantly from what it says.

[@Dami574]

I liked this video because it shows a way to generate electricity anywhere even if in small quantities sufficient only to power small circuits. Therefore, I would ask if in one of your next videos you can build a low-price permanent magnet generator that produces 5- 10 watts. I think it could be a nice project, the generator may be operated with a crank or water or wind turbine and can be usefull in emergency situation or for power devices like smartphone where there isn' t electricity . You might explain how make the coils and how the output current must be menaged. I'm sorry for my english. great job, you're awesome;)

[@kyoudaiken]

Nice project as always. The top section looks like artwork. :D

[@HanshaniLavanya1]

5:11 this is what artists call ✨ A R T ✨

[@SurvivalLilly]

can someone take a simple diode instead of a bridge rectifier?

[@areg7182]

yes but it'll be less efficient

[@bscholer]

hey GreatScott, try holding the soldering iron on the points for less time. I've found that by quickening the speed, it makes the solder harden quicker, and that way you don't have to worry about things coming undone as much. Just thought I'd share my technique. Great video though!!

[@Pertamax7-HD]

great scott,

[@emailausdrucker]

what a neat project. great idea. a better housing for this great emergency flash light would have been on my wish list. Looks a lot like an alpha version in the current state.

[@pierre5325]

Dear GreatScott sir, this was fun, thanks for the vid. - pierre from New Mexico

[@dmz93]

Perhaps instead of stacking magnets together like on the video, you could force them with glue so that they repeal each other also with some distance between them. This way magnetic flux would change faster in respect to the coil. I am assuming that poles of your magnets are on top and bottom of the cylinder. I wonder if this could be improvement to your design. And to soften the impact at ends of tube, maybe another magnets with opposite polarity to the main one? Thanks for the vid!

[@thomasmarliere2505]

Great ! This principle could be used to make a wrist (or ankle) phone charger that would work while running.

[@ABHILASH6409]

wow ! Simply awesome GREETINGS FROM INDIA 😊

[@aritrasurroy4794]

Your videos help me a lot in my own projects. Thanks a lot man

[@greatscottlab]

You're welcome

[@joedellaquila9766]

So if you wanted to make the light shine for a longer period of time what would you do? Add more capacitors in series and a bigger magnet and more turns of wire?? Great video. Subbed on the strength of this one.

[@manashejmadi]

You are my favorite youtuber.

[@greatscottlab]

Thank you :-)

[@waqaszahid86]

thats one nifty little idea for an emergency torch, keep up the good work! you're videos are thoroughly entertaining and quite informative.

[@deepdavidmilestone]

Great Scott - his hand movements are so smooth - where could he have mastered such perfection - a master indeed of the back and forth motions i see !

[@navtium]

Would it still produce enough power with just a single diode rectifier, instead of a FULL BRIDGE RECTIFIER?

[@MrJoBilly]

Do you know electroboom by any chance?

[@cgarzs]

FULL BRIDGE RECTIFIER! xD

[@andrewwatts1997]

Seeing that one half of the waveform would be blocked by the single diode it would waste a portion of the power. I ran a simulation of the situation here, gyazo.com/69dbe91388acf3c6d3f546499c45f789 The loads are two 50 watt bulbs, the blue line is the bridge rectifier and the red line is the single diode ;)

[@codycarter7146]

its not your puny single rectifier its a FULL BRIGDE RECTEFIER

[@Xenro66]

Thanks to Mehdi, every time I read "full bridge rectifier", my mind reads it as _"*FULL BRIDGE RECTIFIER*"_ No complaints though, haha.

[@hayel2015]

Fantastic work. man

[@CapableMishra]

What an idea I am now having fan of you

[@DIYTAYSEERworld]

The shaking part look fun..

[@НикитаЦыпанов]

Sure. I also have a new video: coil gun new test kzbin.info/www/bejne/in7WfXx3otqohZI kzbin.info/www/bejne/Zp-wqqluaMSsma8

[@gesseeletrinik1678]

very good your videos and this congratulations .. very same gem ...

[@johna3909]

Great project/video, even though not as clean result as usually. I have a question if you make a second coild on the pipe amd then connect it in parallel to the first one, wouldn't you charge the capacitor much faster?

[@azsbasicproject215]

,amazing sir.. this will help more people

[@riloaw]

Please explain about the power-saving tools or how to create power electricity saving tools for household electric

[@deepakbhushan6332]

thats really awesome.. just shake and illuminate

[@Markus-hj9ge]

cool idea! Slight improvement would be springs at the ends of the PVC Pipe, that would make shaking smoother and save the magnet from damage

[@geneh9210]

Won't the magnet be attracted to the springs? I 3d printed some TPU bumpers to stick in the tube ends.

[@ChristianJoyAzucenas]

Thanks for this awesome idea Scott

[@GoPaintman]

Please do a video on comparing high-side vs low-side drivers! I'm trying to figure out why I should be using a low-side driver to energize a relay coil.

[@joopterwijn]

Nice project!

[@stewiegriffin6503]

u really like the glue.. nice video...

Great, Scott !

[@AlexAn7]

I think that you should do a new series called Oscilloscope Basics.It would be helpful for many people.Also please continue the Electronic Basics videos!!

[@davidsteinfeld9123]

wow talk about to much time on your hands !!! amazing really really amazing if you guys get in to the movies or I say when you get in to movies you guy do something special with a camera

[@jarenhudson9794]

Love your videos.

[@american0153]

Your videos are great!

[@rahulvc7791]

Will build it. PVC end cap can be used to secure the magnets.. Suggestion. Good video.

[@RajakumarC7057]

Excellent innovative ideas

[@SirBuncey]

So enLIGHTening!

[@fifaham]

@3:16 I always keep with me self adhesive rubber stand off parts from dollar store or Walmart. Also I could use the self adhesive chair leg pads that prevents friction between chair legs and the floor. In Canada, Dollarama store has tons of such parts at very low cost.

[@coldhardwick]

I tried to do something similar a while back. I wanted to mount the magnet on my bike wheel spokes and use the electricity stored in the cap to light up leds in the front and back. i could never get the magnet and copper windings to work right, though.

[@CreativeVidGermany]

you should create a homepage for your projects. if you have time for sure.. ;) it would make things like showing additional pictures, schematics and descriptions easier. :)

[@greatscottlab]

I use Instructables for that.

[@OliverMappin]

I like your vids they help me a lot in electronics thanks.

[@arpitsahni7262]

installing a spring on both sides of the pipes can be helpful.....

[@turb0m0nk3y]

Nice wrist action

[@novafawks]

Great video as always! love your stuff, I learn so much!

[@blipzero]

in sted of a toob can you use a toris or donut and wind the copper around that will it work ?

[@fifaham]

Winding coils, @2:00 I would rather use variable speed drill tool with hook adapter to attach to the drill so it makes winding the coil a breath. If you have a mini lathe machine it would make your life way much easier.

[@scafe500]

really awesome video

[@sumitchandradas5328]

good job sir.................keep going on.....

[@AviaScorp]

Good video. Thanks for putting it together.

[@manashejmadi]

Thanks bro your videos are just fantastic . Keep up the good work. All the best for future videos!

[@rifatalemamshoron3977]

You are genius.

[@mik310s]

Thats a handy little contraption to have about :D

[@dotfoxtom5942]

Looks like a makeshift sonic screw driver, very cool.

[@НикитаЦыпанов]

Maybe, maybe. I also have a new video: coil gun new test kzbin.info/www/bejne/in7WfXx3otqohZI kzbin.info/www/bejne/Zp-wqqluaMSsma8

[@krishna34674]

Hand job simulator 2016.

[@TheTransformerCrazed]

LOLOLO

[@Mecrom]

omsonic masturbating VR

[@LunarEclypse]

Lol

[@irekirek123]

great job. I think PVC pipes could make a better case for it use small ones for the tip and a big one for the whole body and cut a hole for the button

[@dwaynewladyka577]

Is there a way to wind coils neater? How do they do it when transformers are manufactured? Great looking project. It would be nice in some type of case.

[@rolandlastname5532]

+1, but why use cotton cushions? This will absorb kinetic energy, hence waste energy. Why not have metal springs instead of the cotton cushions? A spring will conserve energy and reverse direction of the moving magnets, hence will make it easier to shake the thing and produce electrical energy. Of course you will find out that the thing is most efficient at one particular shaking frequency, which is called the eigen frequency, determined by the mass of the magnets and the stiffness of the springs, which, together, forms a second order differential equation. Another keyword for this: resonance. Besides, the narrator has a boring voice

[@НикитаЦыпанов]

Sure. Maybe, maybe. Hi. It's really super cool! I also have a new video: coil gun new test kzbin.info/www/bejne/in7WfXx3otqohZI kzbin.info/www/bejne/Zp-wqqluaMSsma8

[@timothymaimone8611]

Very nice project! What if you used a larger diameter magnet, coil and tube? Would you get more energy with less mechanical motion? Might be more mechanical work, I believe.

[@reguret2976]

@GreatScott do you really need to get back to the *starting point* in winding the secondary coils?

[@mattbrody3565]

Here's what I want to know about these Joule thief circuits. Is there a way to make a voltage-regulated switch to bypass the thief above the minimum voltage of the LED? Instead of 24% efficiency at 5V, the system runs like a standard flashlight until the cutoff voltage of the LED is reached or almost reached, at which point something switches to disengage the direct power delivery path and engages the thief circuit. Sure would improve the efficiency of the circuit tremendously.

[@amazingsciencevlogs5690]

I made a smaller version of this, Faraday's Shaking torch buddy but it was taking a lot of Time to charge up even my 1.5 Farad as well 🤷🏻. So I am now thinking of making a 2nd version of my, Mini Shaking torch with Supercapacitor of about 0.1 Farad only ✅🙂.

[@silverjohnson3163]

I wonder if using a thinner wall pvc or other material and more coils would improve the performance much ?

[@hermandarr6274]

you da man...I rate your channel ********** stars

[@filipmarijic2510]

Why you didn't put some spring at the end of wood caps? It will be much better then wool. But nice project! 😀

[@gavinshaw7978]

you should compare it to a manufactured shaking torch and see if its better

[@beanlets]

What about a capacitor sculpture or a transistor sculpture? That would be beautiful!

[@cwgreenley]

It seems like you could have made it about 6cm shorter which should make it easier to shake the magnets faster. That would still leave room for the full stack of magnets to fully exit each side of the coil but without the extra space during which delta phi is pretty small.

[@AdlerMow]

You can mount the circuit inside a normal torch, so not only it will be more pleasant to the eyes, it would be much more practical. Would feel more like a hack or an upgrade than a crude prototype thing (no offense, your creation is cool enough, just saying).

[@josipzlk8019]

you shoud used rubber at ends to make magnets bounce it woud be easier to use it

[@lolkusus]

You could you a zener diode to limit the voltage on supercap - not to overcharge it.

[@101bigfat]

bro you're awesome keep up the good work. thanks for you time.

[@marcmirabal2799]

If you wrap more copper wire around the pipe, will it be able to charge the capacitors faster? And would more magnets also help?

[@Sam-ze9mo]

this was really cool!

[@luiscesaremanuelli]

great idea

[@AGloriousDawnLP]

Very nice. :) And you can use a bigger pipe to cover it all. :)