DIY Oscilloscope Kit (20$) VS Regular DS Oscilloscope (400$)
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- Опубликовано: 6 фев 2016
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In this VS episode I will compare a popular DIY oscilloscope kit with a regular DS oscilloscope.
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod (incompetech.com) 
Наука
As a retired GM mechanic i was great with all basic electrical but never really needed an oscilloscope other than looking at secondary ignition sparks, After buying this DSO138 i removed two AC motors from a VCR, i was able to see the AC waveform from the motor, i built a full wave rectifier bridge out of some cheap in4001's and was able to watch the newly converted AC sine wave turn to DC ripple, I was than able to see the smoothing effect of adding a ceramic capacitor, i added an earth ground to the bridge and saw it get very smooth, when running a load, i found the ripple Re-appear as the caps capacity was exceeded, adding a secondary electrolytic cap fixed it perfectly, Just after doing this one little first project Im thrilled at the thought of a real scope! What great fun building and learning on these!
P.S. The Thrill was SEEING for the first time! I had rebuild three-phase alternators with bridge rectifiers for 20 years but never got to SEE them working other than voltage and wine underload.
As an EE student studying single-phase transformers atm, this got me really excited.
This is what happens in india, they teach and tell you "xyz happens this way, but you don't need to see it, it just happens, trust me"
beasterbunny217, I bet your going to have a fruitful career, Cheers!
@@EvanFerrao buy this cheap scope and be a gentleman
I can't remember where I learned this from, but instead of tinning both pads, only tin one side first. Then put the component (ie resistor), and reheat that one side. Because there is no solder on the other side, positioning the component is easier than if both sides have solder on them and having to quickly alternate the iron between the two sides. Just my 2 cents. :-)
+GreatScott, amazing job editing the many hours of build AND some tips into only a 5 minute video! Well done!
+Hari Wiguna
Yep, it's like tacking down SMD components when hand soldering with a soldering iron. You put solder on one pad, place component, heat up solder to tack part down, then solder the other side. Sometimes you do have to add some extra flux in order to get a good joint on the tacked pin.
Yes, and after that, its a pleasure to remove anything..
Hot glue. If you need to remove use a heat gun.
Charles Bader when do you use the hot glue? Put component in place then tack it down with hot glue? What's the point? Why wouldn't you just tack it down to a pad with solder?
That's exactly how I do it and I've replaced hundreds of IC's and thousands of chip components.
"Hey kid, wanna learn about electronics? You'll need an Oscilloscope. Now build it."
mmkay.
Well that's how I started, my first thing I built was a sign with my name on it.
I had no clue what I was doing, I had one 230-24V transformer, some LED and a potentiometer.
I had absolutely no knowledge of the calculations but it worked... The second time. 😂 The first time some LED exploded. 🤣
What I am saying is that you are learning by doing, but start with assembly an OSC thats SMD is a bit over kill, but you get the point.
I Guess at the end you get what you pay . A $20 bucks osciloscope is a $20 bucks results. How ever for fun is a great project
@@hannescamitz8575 I just looked at the kit on Amazon, the one they have now has the SMD components presoldiered on the board. I had the same initial thought as you, but this is much better.
LOL....
I did that. Was a good practice when starting to learn soldering and handling electronics stuff. Bonus: I got a working OSC for cheap that can even be used within its limits.
Great! I found an old oscilloscope on a flee market for about 10$. It was a great find, but maybe I'll check out the DIY one too. Great vid as usual
@Belinda Talsma Thank you that doesn't sound suspicious at all and I'll definitely check that out
Starting from $80-100 in Poland if you want undamaged probes! And we're talking about the huge vintage ones.
😂😂😂😂😂🎉🎉🎉 fe. Aleksandreja 😂😂😂🎉🎉🎉
When SMD soldering, you will have an easier time if you add solder to one pad, add some flux from a flux pen, place your component and reheat the solder while you hold the component with tweezers. Once you are happy with the placement add solder to the second pad to complete. This way enables you to place components flat on the board and easily adjust them.
The best review of this new digital storage oscilloscope that I've seen so far. Well done.
One of your best videos, I've been looking for a little fairly cheap something like this to put together and learn a bit about electronics and this is perfect.
Perfect timing on this video, I just bought one of these kits on Friday.
how was it
I know this is an old video, but I just wanted to say that I'm excited to get started on electronics projects with this, and your guide for a variable power supply!
It’s crazy how far Great Scott’s tools and skills have improved since 8 years ago 😊
You really should write the name of the oscilloscope(s) in the description (like DSO-138) because this probably should be the top search result for video reviews.
True that
Nice to see a fair and unbiased video unlike eevblog where anything that isn't pro-equipment is thrown against the desk and deemed to be crap.
Glad to hear I'm not the only one that feels EEV is a tad OTT in his requirements and rather rough on calling things shit.
Dude really doesn't understand that for starters, tinkering, learning and certain tasks and hobbys, cheap kits like this are fantastic and often even a bridge to more.
Heck, I've been tinkering with 4 and 8 bit computers made from non-integrated components. I bought 5 of these kits and can now monitor signals and signal quality on the busses with a bunch of these DSO's for under 100$.
If I had to do that with "real" DSO's, I'd be out several hundred.
If you do a lot IoT development or thinkering, and are mainly looking to analyze and view GPIO, I2C and other busses like them, a little scope like this is often more then sufficient.
I always hate when people make light of cheap kits. Sure, if you mostly work on equipment that's worth 100's or 1000's of dollars, buy a 500$ or more scope.
But I work on computers that have no application, various microcontrollers and 5-40$ micro computers. Why the hell would I want to have to use equipment on those applications that costs 10's and 100's of times more then what I'm working on, when I can get a 20$ kit to do the same with.
The only video I've seen where EEV wasn't completely vitriolic towards cheap products was the 300$ electronics lab one
EEV Blog isn't exactly geared towards hobbyists. Once you move into the domain of real engineering, these kits are useless.
These kits are at best geared towards electronics classes in elementary schools. Since this works barely upto 100 kHz there isn't really much you can measure with it and now with Hantek and Rigol scopes being so cheap, or equivalent USB scopes are even cheaper and offer frequency domain display and uptop 4 channels. I don't really see why any electronic enthusiast would want to buy this for $20, assemble the thing for hours and doubt the possibility of it even turning on.
For this kind of price tag you are better buying an old analog scope like on ebay, much better performance and capabilities
You soldered all these smds... Patience level over 9000
More simple process is soldering one pad of SMD component then another, not the both pads together.
SMD is much easier to solder in fact.
I prefer solder paste through stencil and hot air, way quicker and way cleaner
@@junehanabi1756 You still have to place the components. Not really much easier or quicker. (vs directly soldering)
@@johnyang799 You still have to place the components but you don't have to worry about the more error prone and careful nature of manual soldering. In other words, with manual soldering, you can have varying levels of solder placed on each pad and without amazing hand precision it would be fairly easy to create bridges. Your also trying to work in a way that the tiny piece can be soldered so you need to ensure it gets soldered onto each contact point working fast and accurately.
With solder paste through a stencil you mainly need to be careful to put the piece on there correctly, but you don't have to worry about any of the manual soldering issues. It all gets a thin even coat and remains somewhat cold or room temperature until you begin to heat it up after all is done. Once heated, the solder paste will re-flow and do everything else for you including positioning the components better, flowing up onto the components, etc... so it requires far less speed and accuracy and is far less error prone with the only challenge being to get the initial pieces on there best and making sure no bridging happens afterwards.
I'm just saying many people prefer solder paste for those reasons and people who were scared away from SMD work often feel more hope when it comes to solder paste.
Your videos are always a joy to watch.
You are the man when it comes to DIY vs store bought.
Great video- somehow I missed these last year! Nice to see these cheap alternative electronics, for us home diy'ers
Great videos! Keep up the good work.
I recommend when soldering smd resistors, just tin one pad before putting the resistor down, not both. Makes getting the position correct much easier. You just solder the other side down once you have the position right.
Excellent comparison video for starter oscilloscope viewers. Just all around DIY refresher for anyone else. +GreatScott! is a great teacher and reviewer!
So glad you did a video on this as I have been considering buying one of these kits. I get a fun little project and it can fill the hole until I can afford a more expensive unit.
upon your recommendation and this build video i bought one of these same kits and its great. I found my old eyes don't see the little parts like they useto but all went well and now i can learn a little about scopes. easily worth the twenty dollars thanks
I love my DSO138. I've lost count of how many times it has come in handy for debugging circuits.
Looks like a really fun little starter project, I look forward to getting mine.
Each week is a new video. It's very good.
Hey, thanks for identifying the mistakes and oversights you made during the assembly. :) It helps the rest of us a bit when we realize even very capable and bright people do make mistakes.
I will definately buy this osciloscope as a starter device for my job. Thanks a lot.
Nice job, the soldering is amazing. Bravo !
This project was exacly what i was investigating this week! But was not realy sure about the usability. Thanx!
Hey Scott! Might be an old video and you might not read it, but the way I always soldered SMD parts was to put solder on one of the contacts, solder the part in place and put it in the correct orientation, and then apply solder to the second pad (and the part at the same time). I find it faster to do that.
Thanks again for showing me more things I have to run out and buy. A little mini scope like that, with all your basic functions, you can stick in your pocket? That's pretty sweet.
I never thought oscilloscopes can be replaced with such cheap-o's! Thanks for that and keep ur Portable oscilloscope coming....
Funny stuff, I bought the preasembled kit and it came with full instructions
This might be a cool little toy, but for all of the labor building it then having a bare board and only one channel, I'd spend (and did) on the Hantek 6022BE dual channel 20MHz USB oscilloscope that attaches to your PC. You get a full featured, 2 channel scope for $69.50 US (on Amazon) with probes and cables. I've been using it for several years and it's pretty much as good as the $400 DSO. There are also several alternative scope programs with different interfaces and tools available for download too. Also, the DSOs are way down in price, a 7" - 2 channel 100 Mhz DSO is now only $150.
I really enjoy your channel, please keep up the great stuff!
thx 4 that comparsion ! short and full of most important needs 4 me ! i think i will buy this in used condition caused its enough for me to startup with an ossi
Built a couple of these. For audio and most power supply stuff, they're quite useful and work well. The later software ones with the data page like shown here are even nicer. And they're fun to build. Hard to beat. Good video. Good compare with 'real' scope. You took into account the value as well. Some folks just diss the lower cost stuff without acknowledging the price/performance aspect at all. I plan to use one of these to monitor our church audio system to make sure that the low level stuff isn't clipping. easy to set into a panel and use, much more useful than a meter and very cost effective.
Thanks for a fair eval! Enjoy your stuff, and your Patreon.
you make the best videos ever ...........and you inspired me to do a lot of electronic projects
I've ordered one, it might take a while to arive.
Hope it will work for what I want to use it for.
Thank you for uploading by the way, Its a big help seeing people testing things before I decide to buy stuff.
I was looking for one of this type. Thanks.
Nice! Was looking forward to this!
I bought one of these and I have to say, it's pretty robust for being $20 or so. I was expecting something much worse, but for general use it's a great option. And a fun little project for putting together.
Thanksfor the overview very helpful as I dip my toes into using an oscilloscope with my Arduino projects. I just got one of these kits already assembled for about $18 USD, so that made it worthwhile to me.
I bought the updated, Kuman brand of this oscilloscope kit from amazon. $40 for kit plus shell. This was the version with SMD components pre-mounted. It comes with a nice manual and includes several diagnostic/troubleshooting guides in case you get lost along the way. It was a nice project for me and the updated kit has a good layout and is pretty easy to use. As a hobbyist I'm happy with it; I don't need the $300 investment at this stage.
I'm definitely getting one!
great video. Focused and to the point.
Your boot up turned out nice and clean. Mine immediately turns into screaming chaos as if I'm reading signals from everywhere on the planet at once.
its been 10 minutes since ive seen the video... and already ordered one! :D
We want that portable oscilloscope project! Sounds ridiculously epic! Any newer kits that might make this work better in 2022?
Hi Scott. Great video as alway, really like your channel! Can you do this test again with the new and improved dso150?
Thanks for the demonstration!!
Greatscott: 3 hour of madness
Me: 2 days of madness
good video, I have the rigol too, but that diy it is a good starting point. adios amigo
Que bien verte por aquí, este es un buen tema para hacer un vídeo (guiño, guiño, codo, codo)
+Proyectos LED Hola Gascón, podrías hacer un vídeo de este tipo en tu canal sobre este tema, sobre todo para los que no nos enteramos muy bien en ingles. Al final no me quedó claro si este kit es buena opción. Un saludo, no me pierdo ninguno de tus videos y tampoco los de Scott, aunque no le entienda.
Hi Gaston!
+Ricardo C.M. hola paisano, el dijo que era muy bueno especialmente para tener práctica. a el le tomó 3 horas armarlo. y dice que se compara a el otro en las cosas básicas y no de muy alta frecuencia.
I really enjoyed building this one. It comes in very handy and is very small aswell. One big advantage is that it is not referenced to earth. With the big oscilloscopes you have to take great care. I already tested the FI switches in my appartement a couple of times with my USB Bistcope DSO.
Thanks for the review. In the case of battery power, can it be used as an isolated scope?
Very "Great" channel! Keep doing great work
Thanks a lot, I was just thinking about getting an oscilloscope and of course also came around these cheap kits. However, considering the limitations and the build-process I think I'm gonna go for a proper second hand device.
Great video as always.
I got the one with the smd already done, works great!
Make a video of all your recommended cheap diy gadgets for new hobbyist! Oscillo, function gen, etc. Keep up the good work
Great video as always btw i dont know shit about electronics but still watch
+sarang sharma another one here!
And i thought i was the only one ..
Saif Alam lol no we are all together in this
+sarang sharma we should all start a Leccy no hope'rs
Jamie Rollinson what? Didn't get you
Great video, thanks.
I've been wondering about the cheap 'scopes for a long time now.... with very little information to go on.
wondering if this would be a good oscilloscope for my microkorg synth
Good review. Thanks a lot!
I know this is an old video but figured I'd give you a heads up in case you aren't aware: GearBest is using this video edited and without the audio to sell these oscilloscopes. They even left in the LED "Great Scott" sign intro.
GreatScott!: Thank you for your videos. Watching them has gotten me a lot more hands on and enjoying the hobby a lot more than ever before.
Keep up the great work.
When soldering SMD resistors or capacitors, put solder on just one pad. Put component on it's place and heat up solder to make a joint with simultaneously adjusting component's alignment, apply solder on the other pad to make a second joint. IMO, way more easier, way more better.
Tweezers with sharp tips are essential. Chisel tip is the right tip for SMD soldering. Of course you don't want it to be too wide and you don't want to use thick solder wire.
Nice vid!
Good video as always.
Hey Scott, can you give me an idea for a project that in which I could use my headset. They work perfectly, but I'm wondering what can I do with them.
My DSO kit came with the SMD already done, but I can't get it to do anything. I just have a white screen. I keep meaning to dig it out and try to see what stupid mistake I made, but it's a bit daunting.
Edit. I closely examined the thing today and found that I'd not bridged JP4. It's working now. What a silly mistake I made.
Very helpful - to describe our mistakes - and success in building this kit.
It happens to everyone!
Still have a white screen. AV- is at 0.6V, can't find the source of the problem.
Hey quick question, would you recommend this type of scope kit purely for viewing audio signals? I do alot of car audio work & it is a pain to drag my huge old 10mhz Phillips scope to the car with me
Thanks for the video. By the way can you tell me how much it cost to make? and one more thing will you make a video of putting the components to the board plz?
thank you for this video, i interested to buy this oscilloscope, but i want to know, how mush the max AC and DC current can measure? for examle 220v AC 50HG can measure?
Interesting kit, looks like it may be handy for portable basic low frequency circuit testing 'in the field'. Currently my smallest scope is Hitachi V-680 which has a carrying handle but is large, heavy & runs off 240V AC mains. (mains inverter is also bulky and heavy) Did you test the kit for EMC / RFI ? and if so could you let us know what frequencies suffered from spurious emissions as this is a critical part of selecting equipment that will be used in close proximity to HF, VHF & UHF radio gear.
Hi, what about using a simple external chip as frequency divider? This might expand its usability range
Excelente practica para quienes se inician en esta apasionante ciencia de la electrónica.
Hey man... Great Scott, is it possible to switch out the LCD display for a larger one? Similarly to what you did with the Compaq laptop screen?
Nice video! Think i gonna buy one.
it is a great kind work ! thanks
You can also use a simple SMD rework gun (Like the 858D) and some solder paste to make these SMD kits MUCH easier. ~$60 but worth every dollar.
Hi !
You seem pretty knowledgeable about these so i'll ask a noobie question if you don't mind.
I bought some years ago a DSO-2150 from Hantek. It's a USB o-scope that i believe works ok (for my use at least).
The only thing annoying is the outdated software that came with it.
The software is so old that on Windows 7 it refuses to even close the program, it spits out an "unhandled exception error" and you have to shut it down via task manager...
So my question is, would you happen to know of any software that would work with this model o-scope but isn't from the Windows 98 era ?
Thanks !
I am surprised that you don't have a hot air station.
Cool video!
Hii
Thank you for your rewiew.
Can this be use to diagnose sensors and signals to a car?
Hey Scott 🖐
Can i use this oscilioskope to check amplifier output for cliping?Great video as always.
Great scott if the one button moves the measurement desolder it and use an opener then it will walk over the display until you press the buttun
for smd resistors / caps i usually pre solder only 1 of the pads, and slide the component while heating up the pad, then you got the resistor stable and flush with the surface, and whats left is only soldering the other pad
what kind of solder is best to use? great explanation and vid btw
Another great video! Just wanna say that you can easily find this dso with pre-soldered SMDs for the same price ;)
Good video. i have the same kit. Have not built it yet.
Can I use this kit to find out dirty electricity in my house or do I need to purchase higher level device?
Great video once again... I really like that you compared the two together and the fact that even though it was inferior to the Rigol... It still has a use... Especially liked the fact that you mentioned where it has a purpose... for example a Arduino... I have seen other reviews on this cheap product but no one else has mentioned that even though it's not as good as the more expensive ones... it still has it's uses in this or that... I don't have an oscilloscope and nor do I know how to use one either but I'm definitely determined to get one... I love building amplifiers and anything audio and I have been wondering if this cheap DIY DSO would be useful to me.... If anyone knows the answer to that question.. Please comment below... Another question I have is... would it be possible to replace the screen with a bigger one... If this can be upgraded to a larger screen then I will definitely invest in one, then fit it in a portable case and power it off some lithium batteries...
this is so cool! i have to get one, or two.
Good video, I am new to this hobby, so thinking the metal detector is a better place to begin, but this seems like a nice toy for future projects.
Just to let you know, Gearbest have ripped off this video and are using it for commercial purposes on Facebook.
the chinsese always manage to suprise me
Mimicry is the best form of flattery.
@@Appregator yes, but it means that he lost profits which he could have used for more projects/videos, so it's still not a good situation
@@kingarthurthe5th I think he still gets credit for the views even if the youtube video is shared on Facebook.
@@oldmcfarlane has youtube (the company) ever said anything about doing that? Cause I have never heard anyone mention that. Plus, that system would mean that facebook would have to manage their fake accounts better because bots could artificially inflate views.
Hi,
why you don't use a flux for soldering?
My job is electro engineering and I can't imagine soldering without flux.
Great I got one as a present. Now time to work
Ah - the idea about the 9v battery is genius! I hate having to lug around the power converter
Might have been mentioned elsewhere, but when when soldering smt components, only put solder onto 1 pad. Tack the item into place, then solder the other side. The results will be much cleaner looking, if this matters to you.
i just bought one of these on ebay for $21 assembled and in the acrylic case. In looking at the pricing I cant see purchasing the kit when assembled is only a couple dollars more. Unless you enjoy the building. I intend to use this $20 scope to monitor my ham radio rf signal. make sure im not overmodulating
I got one of these kits about a year ago for ~£13 when I first saw Julian's channel. I also made the mistake of soldering the SMD TL084 backwards - initial voltages checked OK but the TL084 and an inductor blew when I shorted out the TP4 jumper. I needed a quick fix so paid ~£4 just to get replacement parts locally (UK). It now works well for the price but like many others I have read about the display has to be zeroed every time it is powered up - still don't know why.
Hi GreatScott!
Great video as always.
Can you please do me a favor and mention the model and make of all of the equipment you are using in your lab like the Power Supply, DSO and Signal Generator as I plan to buy them soon. Thanks!
For the smd components it's easier to wet a single pad, push the component on top, apply heat for basic holding, and then solder the other side.
Hi! Thx for the info useful review! What's your opinion about the Openscope MZ from Digilent? It would be worth?