How to make a Pocket Oscilloscope

Рет қаралды 73,526

6 жыл бұрын

Saying CRT Tube is redundant as CRT already means Cathode Ray Tube... :P
In today's video, we take apart an old VHS camera to get the view finder's CRT display, and we use that to make a very small pocket oscilloscope. Thanks for watching! :)
The Pocket Oscilloscope: goo.gl/4riUE2
KZfaq channel of mail sender: / @inventingthings
Support me on Patreon to fund better experiments : / keystonescience
Join the discord discussion! : / discord
The pen I use was donated by: hobblecreekcraftsman.com
Intro Made by Tate Storey, check out his channel! : • Thing that happened to me
My multimeter was donated by goo.gl/uOGdwd
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Inquires: Sequence01123581321@gmail.com
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Broke for free, Night owl ; pixel land, Kevin Macleod
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Twitter: @Keyst0neScience
Facebook : / keystonescience ( I never get on facebook though )

Пікірлер: 1 300

@InventingThings 6 жыл бұрын

Yay! You got my letter!!! What did you use to put it on the wall? And this is a awesome video

@KeystoneScience 6 жыл бұрын

Haha I used a microwave oven Transformer xD thanks so much for sending it!! :)

@droptopsalvador1864 6 жыл бұрын

Inventing Things I checked out your channel lol. Good stuff 👍

@InventingThings 6 жыл бұрын

Denzel Morok THANKS! Im glad you like my videos. They should get even better soon

@InventingThings 6 жыл бұрын

Keystone Science well im glad it wasn't plugged in xD. And no problem glad you enjoyed it

@Peaches-yj8xk 6 жыл бұрын

keystone science can you make a vibro-acoustics sound levitator? it would be awesome if you did it!

@PlasmaChannel 6 жыл бұрын

This is exactly what KZfaq needs. Brilliant work Nate!

@robotan9359 6 жыл бұрын

It's nice to know you have mini tv's in your camera, I had 3 broken one and now I have projects for all of them!

@greenthizzle4 6 жыл бұрын

Robotan I seen some guy hook a video game up to a 1 inch tv like in the vid lol

@theukuleleist 6 жыл бұрын

i recently found your channel and loving the crazy stuff you make i especially like the way the videos are put together short but still informative without being boring

@fastwilly6555 6 жыл бұрын

I love your channel and use your projects to get my kids interested in electronics! I am an automotive technician and an ocillascope is one of those tools I haven't been able to afford to get for myself. That scope would make an amazing addition to my kit!

@StudioCluiss 6 жыл бұрын

Wow this is really cool. Wish I had as many old electronics as you do to take apart. I love your videos. I just ordered some boost converters to build the pocket taser and that come in tomorrow. I can't wait to show my friends . Thanks for making these cool videos. They are very informative and teach me stuff that I would never learn in school

@StudioCluiss 6 жыл бұрын

Also could you do a video about some projects involving 555 timers or 741 op amps? I have some but I don't know what to do with them

@keithbybson4836 6 жыл бұрын

Jonathan Cluiss i ordered some too but i was wondering if you could use them in a tesla coil circuit

@codebeat4192 6 жыл бұрын

Tip: The smoothing capacitor mostly tells you the maximum input voltage range. Is it for example rated 6.3V, you can be sure it must be below that.

@intivic86 6 жыл бұрын

I would love to get one of those scopes- Amazing scope from the old camera. I love how you repurpose stuff. Your very inspiring. I've watched your videos from Damn near the begining. Im a long time watcher. what i like the most about your channel is your so much like us normal DIY ers. No big budget just what we can salvage and redesign. Your amazing!!!!!!!

@rdmguy12 6 жыл бұрын

This is awesome! I've been thinking about playing with a viewfinder CRT, and this has set me over the edge!

@KilledWithStyle 6 жыл бұрын

I would love that pocket o-scope! I have been getting into RC planes and cars recently; one would help immensely.

@StudioCluiss 6 жыл бұрын

KilledWithStyle just curious what do you use an oscilloscope when working on rc cars/planes?

@KilledWithStyle 6 жыл бұрын

I am a little bit beginner and hobbyist when it comes to this so I like to know my homemade radio is working the way it should (so far its been guess work and hooking up devices that makes noise). Honestly until I saw this, I never thought of making my own o-scope. Although at this point, it sounds like fun :D

@gautampassi3863 6 жыл бұрын

*Fffuuuulllllllll Bridge Rectifier* I want the scope.

@noudlindeman1931 6 жыл бұрын

FULLL BRIDGE RECTIFIEAAA

@finnsuchara1992 6 жыл бұрын

Electro BOOM ?????????

@greenthizzle4 6 жыл бұрын

Mr.Skull: The King of creativity what about your grandpa?

@prakharmishra3000 6 жыл бұрын

Jake Mitch 😁😁😁😁😁

@OrenKaplan83 6 жыл бұрын

I really like your channel. I think you are doing a really nice job of creating these demos. It's not overly simplistic and not overly detailed. You also point out good resources to use and safety guidelines (for the most part). You might want to have the text captions you sometimes add show up for longer in a gentler manner, but that's my opinion, you might be doing it on purpose. I think an oscilloscope like you reviewed would be a perfect way to test the pocket one you built. I'd love to get one of those and see how it holds up.

@hermestrismegistus4784 6 жыл бұрын

In the early 90`s I used an earlier model camcorder CRT (2.5 cm diagonal) in a similar setup, on the front side of an audio amplifier (built by myself) to give an interesting video display of the music. Those CRT`s were so good, that Panasonic used them to build miniature portable TVs... I wanted to build an oscilloscope using that CRT, but electromagnetic deflection limited the band drastically. Nice to see people still interested in old school electronics - a lot to learn from there. Nice video!

@drank4069 6 жыл бұрын

Gimme da oscilloscope!

@oliverpuffer6333 6 жыл бұрын

I've recently gotten into electronics, and your KZfaq channel is my largest source of inspiration for doing so. These videos are always so interesting. I'm going to try to build a full theremin soon, which is something I don't believe you have covered in a video yet. I really hope it ends up working.

@noahblount3309 6 жыл бұрын

Just discovered your channel, and I love it. You remind me of an easier to understand bigclive mixed with electroboom. Keep up the good work dude

@smow7422 6 жыл бұрын

I love you and your content Quality over quantity

@smow7422 6 жыл бұрын

Btw gimme dat oscilloscope pls

@noudlindeman1931 6 жыл бұрын

GIMMA DA SCOPE

@sulaimaanchamda4501 6 жыл бұрын

Noet Games Fan of electroboom?

@avocado2084 6 жыл бұрын

full bridge RECKTIFAIAAAA!!!!!11

@noudlindeman1931 6 жыл бұрын

(EXPLOSION) i think so

@noudlindeman1931 6 жыл бұрын

Have u subscibed to him? You've probably eaten some leadpellets if u say no

@noudlindeman1931 6 жыл бұрын

My autocorrection is so stupid iT constantly change things so thats why Some things aren't good written

@hadrienserralheiro4213 6 жыл бұрын

I just started studying electronics last year and I love your channel so much! Keep up the good work :)

@sethlarsen920 6 жыл бұрын

I have had a mini crt for a long time now and wanted to make an oscilloscope with it. Now I can! Thank you!

@LegalSkateboarding 6 жыл бұрын

I'd love to be a runner-up for of of the miniature Banggood oscilloscopes. I can't seem to find anyone with an oscillascope to get hands on experience with it and I'm holding off buying one that's a four pronged analog until I'm familiar with the basics. *Studying to be mechanical engineer but trying to dip my toes into electronics and programming a bit as well

@eyecantmakevideos8067 6 жыл бұрын

taking a bite out of a load of fields there! you might be interested in eevblogs channel?

@LegalSkateboarding 6 жыл бұрын

I'd call it a nibble instead of a bite to be honest. I'm slowly making my way around the each basic electronic component to make sure I don't skip over anything. And programming (c++) is a whole new world. Saying I've taken a fraction of a chunk out of either one would be foolish of me XD And I've already been subscribed to eev as well. Going through his Friday Fundamental videos currently. And if someone's wanting to publish my novel long comments make sure to get in touch with me.

@jako3xb 6 жыл бұрын

GIVVE MEH DA METAAA

@droptopsalvador1864 6 жыл бұрын

jako3xb wrong channel 😂

@noudlindeman1931 6 жыл бұрын

FULL BRIDGE RECTIFIEAAA

@rd-paula 6 жыл бұрын

Hauahauahauahauahsu

@xXSubZeroGamesXx 6 жыл бұрын

jako3xb Ey shawty, are u a rectifier? Because

@Arinx7 6 жыл бұрын

I love your videos, they're so inspiring. They're what pushed me over the edge to finally buy my own breadboard and a starting set of components!

@daniellewis1529 6 жыл бұрын

Quite the fun little project to reuse some old parts. Big Thumbs up.

@TylerWynn 6 жыл бұрын

It would be awesome if you could make a Tesla coil like one of them in the background of your videos

@eulemitbeule5426 6 жыл бұрын

There is really nothing special to it... Just two coils, capacitors and the transformers of a old microwave.

@eulemitbeule5426 6 жыл бұрын

You can eliminate a lot of these factors rather easily... You can tune the coils by measuring the individual capacitance of the second coil with a multimeter, then adjust the number of windings to get a good resonant frequency (or just create some Leydener flasks, you can control the capacitance rather easily). And just replace the spark gap with an IGBT/thyristor etc. Expensive, but can perfectly be regulated with some sort of microcontroller (via a Darlington-circuit). But yeah, a video about this coil would be nice, i am interested how good this makeshift toroid is... (I want to make a bigger one myself, but i do not want to get shocked by a f*cked up toroid).

@Felisargyle 6 жыл бұрын

Eulemit Beule wait you still call capacitors condensators

@eulemitbeule5426 6 жыл бұрын

Christian Wang I can change it if it really annoys you... If you constantly have to change between german and english, there is a good chance you get something wrong from time to time.

@Felisargyle 6 жыл бұрын

Max Power ohhhhhhh that makes a lot of sense

@josiahhickman5738 6 жыл бұрын

How dare you say CRT tubes, that's redundant. Kidding I assume you know, your probably super smart, lol. I also would like to enter in the giveaway. Cathode ray tube

@Jimwill01 6 жыл бұрын

Cathode Ray Tube Tube - lol

@allensmithphotography 6 жыл бұрын

I love your videos, my son likes watching them too because they are great at breaking down complex ideas into easy to understand concepts.

@garthwormington2693 6 жыл бұрын

Thank you for continuing to make videos, I love your channel.

@johanneshofer1337 6 жыл бұрын

I need a scope... 360 noscope is just no fun

@HobkinBoi 6 жыл бұрын

I realized. One could actually use this little CRT tube in conjunction with an A/V camera, and make a scope with it.

@yushatak 6 жыл бұрын

Can has scope?

@jakemcmullin1152 6 жыл бұрын

Love your videos. I have built quite a few of your projects along with you and could put one of the pocket scopes to good use. Keep up the good work

@TheZombieSaints 6 жыл бұрын

Great video once again mate! I really enjoy this channel.

@daveb5041 6 жыл бұрын

If I say banggood sucks will I get a free scope?

@droptopsalvador1864 6 жыл бұрын

Dave B Probably

@nickchemistry1430 6 жыл бұрын

GIVE ME THE oscilloscope to check the FULL BRIDGE RECTIFIER!

@nickchemistry1430 6 жыл бұрын

Is it free to China?

@grandslam3517 6 жыл бұрын

Nick Chemistry wrong channel bro

@Saamniferu 6 жыл бұрын

XD -electroboom-

@pokemon555222 6 жыл бұрын

I love your videos. They are really informative and entertaining to watch! Keep it up!

@timothysvirbly4988 6 жыл бұрын

Just found the channel thanks to the back yard scientist. Great content! It inspires me to want to tinker with electronics in my spare time. Keep it up!

@wubzo45959 6 жыл бұрын

I'd really get some use out of a pocket scope! Congrats on your sponsorship! I love tinkering with electronics, and this scope would really help! Thanks!

@michaelmurray3422 6 жыл бұрын

I've made my own mini scope from the CRT's quite a while ago. They are fun to work with. When I was in High School, I made one out of an old TV, with the same use of the deflection coils. My next project is to add two of then to my DJ setup, to watch the left and right audio outputs. I have bought one of the LCD digital scopes from amazon. Very surprising how well they work. I enjoyed the video you just gave. I watch them a lot, and have come up with some uses for the things you've shown us. Thank You!!! Michael

@Kuvetli909 6 жыл бұрын

Always cool stuff from you, well done!

@chrismccreary820 6 жыл бұрын

Awesome video! I love watching these videos with my kids. Keep it up.

@Elaphae 6 жыл бұрын

I might have missed out on the o'scope but enjoyed the video quite a bit. Keep posting them.

@levischulze8062 6 жыл бұрын

Thanks for all the great videos! I can't wait for more.

@cutzwithrazzor 6 жыл бұрын

Awesome Video...Nice build on the scope!

@nicholasscott1206 6 жыл бұрын

this is an extremely satisfying video & with all due respect, i need that pocket oscilloscope!!

@Nerdbomber586 6 жыл бұрын

That is pretty cool. I love the random doohickeys you build.

@porsche558 6 жыл бұрын

I love the stuff you build!

@keithbybson4836 6 жыл бұрын

I just made another one with a sony watchman. I thought this thing had absolutely no practical uses but this one works better than the one i made with a camcorder and because it was originally designed to be portable it was very easy to make simple modifications. It runs off 4 "AA" batteries and has a bigger screen with a brighter display! Thank you so much for this video. This new scope should help me understand what I'm doing with the circuits i experiment with!

@xsiner 6 жыл бұрын

Cool little device you made there, it is amazing that you can make it from that.

@Quijanos1 6 жыл бұрын

Great video! Instructions excellent and producible.

@arnesandness7554 6 жыл бұрын

Would LOVE one of those BangGood scopes! Great video!

@TheGiselaSchumacher 6 жыл бұрын

I love watching your videos and always look forward to the projects you come up with! I actually got ahold of one of those little CRT displays a while back and made it into a mini night-vision camera. It runs on 12VDC from lithium cells, has a 3W 940nm IR illuminator on it, and uses a super cheap 720p NTSC CCTV module that I removed the IR filter from. I have yet to make a working oscilloscope, but I would love one of those Banggood pocket scopes!

@andrewrobotbuilder 6 жыл бұрын

I'm going to dig around for that old videocamera I used to have. Also, commenting for a chance at the pocket oscilloscope - compact and super useful!

@12DGJB21 6 жыл бұрын

Well done. Fun little project.

@yerffejmurffy 6 жыл бұрын

Those pocket oscilloscopes look super useful for projects in the field.

@kyleschmitz9814 6 жыл бұрын

Love the video's you make, this one in particular reminds me of how I've always enjoyed tearing things apart even as a kid. I am 16 years old and very much enjoy the electronics field and circuit building. I always find it very entertaining and inspirational to find channels like this that produce content that teaches you and gives you some creative ideas for projects. Keep doing what you are doing and producing great content. Would love to have on of the pocket oscilloscopes. Thanks.

@dhivan 6 жыл бұрын

Hey man! Love the videos keep up the great work!

@SnackaJax 6 жыл бұрын

That pocket scope would be awesome to have! I am getting into electronics lately but as you said, scopes are pretty expensive if you're just starting with electronics. Keep up the good work!

@BVinnyC 6 жыл бұрын

I find this funny because just yesterday I was looking for an affordable oscilloscope to measure the power of the EMP I built based on your design and I couldn't find anything decent under 75$. Glad I didnt decide to purchase anything yet. Love your videos btw and how you give a understandable yet detailed explanation on all the gadgets you build for people who are not as experienced as others> Keep up the good work and I would love to see you experiment with high powered lasers!

@Adam-fg4og 6 жыл бұрын

Great video mate , keep up the great work.

@tedgaunt3044 6 жыл бұрын

Another great vid. Thanks for sharing with everyone. Would like that Oscilloscope!

@jacobstory8895 6 жыл бұрын

That was... Unexpectedly simple... Nice job!

@WagonLoads 6 жыл бұрын

Wow. Nice project. There was a project in a magazine that used a constant current diode to charge the horizontal trace capacitor. The diode was $10 in the 70's. I love the sponsors scope. It would make a nice addition to my bench.

@anthonyvolkman2338 6 жыл бұрын

I love your hammer you used to nail the letter to wall! A mot!! I love those things. Also I really enjoyed this tutorial about pocket oscope cause man that one you're giving away looks nice. Plus it pretty cool how the crt used runs on 5 volts not high voltage!

@Gregsadventure 6 жыл бұрын

MAN THIS IS THE MOST COOLEST KID EVER, i love doing stuff like that but i never really got out of my shell to do it, im always afread that im doing to get shocked and die, and man thats the coolest hand held thing ever i would love to have one if you have any more, Keep it up

@mudkip9531 6 жыл бұрын

As long as you discharge the main capacitor you'll be fine.. I think..

@CM_colorsinmotion 6 жыл бұрын

The pocket oscilloscope looks great, keep up the good work

@aarontblack 6 жыл бұрын

Well done! Great project.

@Blayzeing 6 жыл бұрын

Pretty cool project, kudos on getting the Banggood sponsorship. They're pretty cool guys, I just bought a load of drone stuff from them.

@imset2021 6 жыл бұрын

Hello sir! Thank you SO much for all your knowledge and inspiration you share with the world! It means a lot since I am a slowly up-and-coming hip-hip rap artist and I'm doing my best to share real awakening, yet basic, knowledge and inspiration with the world as well. It would be such a step up to own ones of those pocket oscilloscopes since frequency is what shapes the universe! And that's what I want to learn to teach thru music. Also you remind me of one of my cousins. Lol. STAY AWESOME!!

@Moonbrony 6 жыл бұрын

Awesome little project.

@MrThodin 6 жыл бұрын

I'd love one of the oscillioscopes, they are awsome!

@haroldwarren7302 6 жыл бұрын

very good video,thank you for all the hard work you do in making these instruction videos.2 thumbs up,keep up the good work.ps i would like one those oscilloscopes

@DarthRoboto 6 жыл бұрын

I am a recent college graduate and active technical hobbyist. A pocket oscilloscope would not only be absolutely cool to have, but tremendously useful!

@YisraelWealcatch 6 жыл бұрын

Great project! I'm going to try to make this one... I've always wanted an oscilloscope.

@39Kohm 6 жыл бұрын

Excellent project, when I was going through college I was going to build something similar using a 555 timer as the horizontal sweep timer and enter it in a 555 competition, unfortunately due to studying and exams I never got to do it. Keep up the good work! Also, I live in Niagara Falls, we have a nice statue to Tesla as the hydroelectric power station he designed is here.

@theoldguy9329 6 жыл бұрын

Great video. Nice little oscilloscopes too.

@fakenews7266 6 жыл бұрын

Keep making some really cool stuff and be safe

@ArtturiSalmela 6 жыл бұрын

That small oscilloscope is really neat. It would be handy for testing devices when the measurements don't have to be as good as with a $5000 oscilloscope. If it breaks it isn't a big deal since it isn't that expensive. Cool idea using the viewfinder from a camcorder for something! One could even calibrate it with the commercial oscilloscope to be able to make some sort of measurements, but having a frequency option would be really useful. Gimme da metar!

@realtalkwiththeking7862 6 жыл бұрын

Those pocket oscilloscopes look quality to me. Great video bro.

@ProtoG42 6 жыл бұрын

Awesome, keep up the great work!

@notonamurr9641 6 жыл бұрын

This is such a neat idea! I had no idea those little CRTs could be powered with just 5 volts. Also that pocket oscilloscope is really neat, seems to have a bunch of functions for its size and price, I would love to have one lol. I do have a much older, bigger oscilloscope - an eico 435 from 1965 that I bought from an antique store. It works pretty well considering its age, but there's a little interference at lower settings, I'm thinking an electrolytic capacitor, possibly the filter, went bad, as they do on older electronics.

@guwick 6 жыл бұрын

Love your vids dude!!

@MrZanderboy99 6 жыл бұрын

Hey keystone. I love your stuff and because of you I have gotten into electronics and my want to build my own stuff

@danielskoog5565 6 жыл бұрын

Sweet build!

@avii5429 6 жыл бұрын

Wouldn't mind having that oscilloscope, really cool little tool, might even buy one

@Unordung 6 жыл бұрын

Awesome video as always

@user-kv3tq1vc5g 6 жыл бұрын

you are so good at what you doing

@MikeDivine28 6 жыл бұрын

Love the vids. Pocket Osc. looks nice.

@23antwon23 6 жыл бұрын

Great Video! Thats great that they let you have a pocket scope! Thanks for having a great channel (:

@ricardocastroguimaraes3241 6 жыл бұрын

I actually prefer your homemade CRT pocket occiloscope, I LOVE CRT displays. Great video, keep up the good work man. 👊

@danielrichards5276 6 жыл бұрын

This was a great video!!! I wish I had the material to do this kind of thing!

@danielesantoru2591 6 жыл бұрын

That oscilloscope looks great!

@ethansprojects7399 3 жыл бұрын

Awww such a cute little crt!

@BigIron_06 6 жыл бұрын

Keep up the GREAT WORK!

@baqcasanke 6 жыл бұрын

Hey buddy i love your channel! Keep it up!

@youngmatt79 6 жыл бұрын

Awesome project!

@Henryandginger 6 жыл бұрын

This is a neat project. I will say though, if you can't get a salvaged camcorder there are kits you can buy that let you build a pocket oscilloscope. They are fun little soldering projects from what I've seen.