7$ Function Generator VS 107$ Function Generator

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You can get the presented Function Generators here (affiliate links):
7$ Function Generator:
Ebay: rover.ebay.com/rover/1/711-532...
Aliexpress: s.click.aliexpress.com/e/_dTL...
Amazon.de: amzn.to/2hGWvjK
107$ Function Generator:
Ebay: rover.ebay.com/rover/1/711-532...
Aliexpress: s.click.aliexpress.com/e/_d80...
In this episode of VS I will take a look at a 7$ function generator kit based around an XR2206 IC. I will also compare it to a 107$ function generator that I have been using for over a year and tell you their advantages and disadvantages.
Music:
2011 Lookalike by Bartlebeats

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Опубликовано:

31 дек 2016

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Комментарии : 449

@aneeeessshhh 7 лет назад

He is the reason i will do electrical engineering 😀

@greatscottlab 7 лет назад

Awesome!

@Original_SJB 7 лет назад

PC B electronics and programming and mechanics = robots!!

@FadiFadi00 7 лет назад

Aneesh!! I already started electronics engineering and he helped me a lot with his great videos 😊

@electronics3992 7 лет назад

PC B Im 14 year old , I bought new 900w lab power supply , made solar shead , renovated old house , bought new quad and cross , just go work on summer and forget everything else

@AnimaXionA 7 лет назад

im already studying electro-technical school

@whatthefunction9140 7 лет назад

I love the way you talk. When I read tech books I use your voice in my head.

@ahmetasantas7099 7 лет назад

That's creepy

@LeaderOfMetal93 6 лет назад

Same. My Diff Eqns professor had a thick eastern european accent. Whenever I have to read dry math books/papers, that's how I imagine it

@blisterbill8477 5 лет назад

I read my c++ tutorials with a Jamaican accent. “FIRST....webegonnalearnaboutdastringMON”

@javiergarcia--- 4 года назад

you are in love?

@mr.mojorisin9999 3 года назад

Sometimes i listen to audio books when im working, then when i read an actual book, its in the robot voice in my head

@georgea.752 7 лет назад

Thanks to you I am now a student of electrical engineering! Thank you for the inspiration!!!!! Cheers from Greece.

@elonmuskmtmt886 6 лет назад

Love your projects man! I am an Electrical Engineering student, and I want every one of your videos....I learn more from them than I do my lectures.

@hughh106 7 лет назад

I really find your comparisons and reviews of cheaper equipment as it is helpful for us on a budget

@Nathan-cl4bd 7 лет назад

I love that you show how cheap it can be to start up in electronics but also show why some of the equipment can be so expensive! Im in second year of electronic and computer engineering all because of your videos! I love them and i have done so many of your projects, most recently converting a laptop screen to a monitor (i made mine portable) Keep making amazing videos man!

@afterhours39 7 лет назад

You made a simple statement that made the "old lightbulb" go off in my head. (I''m too old for the LED to go off in my head...) You put in the resistors first! I would not have thought to do this, but putting the resistors first could help with minor static discharges! Brilliant! If I get nothing else out of your channel, THAT was worth the price of admission... Glad I subscribed!

@enduser6957 7 лет назад

Great review...you simultaneously made the statement "you get what you pay for" meaningful and created an informed consumer.

@waltp3373 5 лет назад

I just ordered one of those $7 function generators to play around with. Thanks for the informative video.

@nathanmcconnell9991 7 лет назад

Happy New Year, Love Your Videos, Great Scott!

@user-yg4yd7nl9j 6 лет назад

Great Scot's law.If he says RIGHT its always no.

@yasyasmarangoz3577 5 лет назад

can't understand

@HazeAnderson 5 лет назад

Riiiiiiight? ;)

@certified-forklifter 5 лет назад

Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight? ;)@@HazeAnderson

@johnrubensaragi4125 5 лет назад

3:18

@trevader2562 7 лет назад

I like when you do value tools, because I have a very small budget for stuff. I actually bought the DSO138 kit you reviewed. thanks!

@rjmunt 7 лет назад

Your English intonation is improving Scott. Thanks for the content.

@speedsterh 7 лет назад

If a channel such as this doesn't generate some desire in the mind of young people to attend some electronic courses at the university, I don't know what will !

@Hackvlog 7 лет назад

That was an excellent comparison video! For $7 the functions and performance is relatively good and if one doesn't have better function generator, this kind of cheap "toy" can be very useful... It just may need some modifications and there are limitations. Happy New Year!

@MrSandoron 7 лет назад

How about comparing a low cost lab power supply to a high cost one? :D

@bassblaster505 7 лет назад

YES! i cant decide if i want to build a PSU or buy an Ebay one like this one. www.ebay.com/itm/30V-5A-Variable-Adjustable-Precision-Digital-DC-Power-Supply-Dual-LED-Dispaly-/222181019956?hash=item33bb055134:g:2wIAAOSwzJ5XgGNw

@sampletext5504 7 лет назад

MrSandoron i bought a very cheap 20v-2a psu for 40€ and it works perfectly fine.

@John_Ridley 7 лет назад

I have one of those 30v/3a bench supplies. It's OK to start with, but eventually I got exasperated with it and bought a Korad KA-3005D. The problem with the cheaper supply is that if you're trying to do something like test LEDs or something else where you need to set current limiting very low, like 10ma, it's very fiddly to get the setting right on the analog one. With the Korad I can set up several exact programs and flip between them instantly. It is 2 to 3 times the money. I'd say get the cheap one to start with, then go to something better if you find yourself needing it later. After all, having two bench power supplies is sometimes needed anyway. Korad makes one for a bit more ($200) that has two adjustable outputs, which seems like a good deal, but I didn't like how they set up the controls on it and decided I'd rather buy two 3005Ds than one of the dual output ones, when I got to where I needed another supply.

@majdinj 7 лет назад

You can improve the precision of current knob by changing it to multi-turn potantiometer. You should keep in mind that the multi-turn pot knob is bigger than one turn one.

@relik0fages 7 лет назад

If you already have the parts laying around to build your own, that would be the cheaper route. Though if you do not have the parts and are going to purchase the eBay one doesn't look so bad.

@simonkotasek3167 7 лет назад

You are best in electronics. (Happy new year)

@user-sb7tu2ve8h 7 лет назад

You are doing this buzzfeed titles now :D

@sreeprakashneelakantan5051 7 лет назад

Great Scott is a meticulous Scott too, look forward to your great videos in 2017 too. All the very best 🙏

@rhysevans8691 7 лет назад

I love your awesome geeky detail! Great video as always!

@simonthecucumberenjoyer1042 7 лет назад

Happy new year! Great video as always Scott HA bad pun is bad

@ianosf 7 лет назад

I don't understand most of your video, but I like it, great video

@chrrtz_builds2018 7 лет назад

Happy new year budy. Nice video

@mickgatz214 7 лет назад

Happy New Year 'GreatScott' . :) I enjoy your videos, and yeah, only have a basic knowledge of electronics.!!! lol

@BoomBrush 7 лет назад

Love the title, how it's mocking buzzfeeds comparisons. Cool video, didn't know you could get them as cheap as $7 :o

@DogRox 7 лет назад

Great video. Very informative nice job! :-) happy New Year dude!

@SidneyCritic 7 лет назад

This is exactly what the beginner needs, unbiased compassions that show what the cheap stuff can do. If you go to other electronic sites they talk down to you for buying cheap stuff, and want you to spend $5K to set up a lab for something that you might not continue, or will always only just be a hobby. I bought that cheap $25 DSO kit, and I'm surprised how handy it is. I would now like something better, but paying $500 for something I might only use 10 times is a waste of money as the $25 DSO - only used 8 times in a year - does the simple auto stuff that I'm only ever going to do.

@leonc.k.7346 7 лет назад

You could try to add that capacitor and feed it into an op amp setup as a voltage follower with a bjt or mosfet output stage

@davidprice2861 6 лет назад

Good unbiased, objective and helpful video. Thank You.

@jacobh503 5 лет назад

I will be sure to bookmark your channel as I will be doing electrical engineering fairly soon...

@JerryEricsson 5 лет назад

I have had one of those little kits now for a couple of years, it does the job for me when I need such a thing. That said, it is rare that I am in a situation where I actually do need it. The last time I used it, if I remember right was when I built one of those cheap oscilloscope kits, just to test the scope! Guess it worked for that. I have a signal monitor deal that I can hook up to it if I need to set a specific output frequency, that was a couple of bucks more on Ebay.

@mr.rubycarnation8325 7 лет назад

happy new year greatscott.

@IntegralMan 7 лет назад

Great! I love your projects!!! Happy new year.

@greatscottlab 7 лет назад

Thanks. Happy new year as well!

@allwinnerh3170 7 лет назад

GreatScott! Hi alles gute Guten Rutsch unf frohes neues Jahr 2017. Hab mal ne Frage wie ist deine Einstellung zu Bascom?

@Krisler12 7 лет назад

Thank you for the video ! 1. Could you do a tutorial on how to use osciloscope and/or function generators ? How to use them in real example ? 2. Please make a tutorial on how to build yourself a robot like Cozmo, please. 3. I have a Lumia 1520 camera (20MP). Please show how to make a home build hidden spy DIY camera from it ? There are such thing on amazon but cheap made with bad quality cameras and bad quality overall. Also needed this tutorial just for fun and learning purpose. Thank you very much ! Happy New Year !

@blury6445 6 лет назад

GreatScott! 2018

@Grants2251 7 лет назад

Great vid from Great Scott, but I would like to suggest one more option - its AVR DDS. I learned so much from doing and modding it (diy pcb, avr programming, power supply, even micro-controller button debounce problem solutions, offset and amplitude controll, opamps rise times, clipping, lines rinnging etc). 16mhz avr may run any function up to ~60khz, and square up to 8mhz (well, it drops in big steps at high freq). Additionally, I combined avr with ebay AD9850 module, what brings ~40mhz sine. In parts it may cost 30-50EUR and 10000EUR worth fun.

@TechBuild 7 лет назад

Can you please make a video on rotary encoders? Happy new year!

@gortnewton4765 6 лет назад

It's easy to put a switch on that frequency changer. And a more powerful output transistor could fix the lack of current availability while lowering the impedance to a more acceptable 50 ohms. Thanks for showing us the differences in a very professional way.

@aliaudi4741 7 лет назад

Happy new year for everybody❤️

@HazeAnderson 5 лет назад

I bought this kit just to get started with DIY synths and minor repairs. :)

@elektrocat8681 7 лет назад

Happy new year!!

@hdmalpas 7 лет назад

Happy new year.

@farizaljaafar 7 лет назад

I was looking for this in ebay n not very sure of its function. Thanks for your review.

@ABHILASH6409 7 лет назад

wow happy new year. .. my best wishes to you from India ,😁😀😃

@can_uysal 7 лет назад

Hey Scott! Wanted to ask you a question. I have the same cheap function generator, thought mine was faulty because of the 'jiggles' i see in waveforms, but it made me somewhat happy to see you experience the same as well at 4:42. Any chance you know what is causing this? And how to prevent? By jiggle i mean the waveform shakes back and forth, creating ghost duplicates with different phase. Great videos btw, already subscribed. Keep up the good work, we need engineers like you!

@subzeroelectronics3022 3 года назад

I bought one of those exact models of kits and for whatever reason the output was incredibly small and the amplitude didn’t change when adjusted. I got a more expensive kit that was also very quiet so I ended up just making my own amplifier for it.

@thomastate1163 7 лет назад

Hi Scott, great video, looking forward to see what projects are coming in the new year! I have a mechanical engineering background but have been trying to get more and more into electrical engineering work in my spare time (through hobbies and otherwise). Do you have any recommended paths (courses, projects, or otherwise) for someone who might want to get more familiar with electrical engineering technology? (What are filters, for example, or how does an AMP work, how to construct an AMP, etc etc.) Thanks!

@ipouoza 7 лет назад

like your videos! Respect from RUssia!

@Allan-mf1he 6 лет назад

Got the same one for R170.00 ZA. Was wondering about the the DC offset... Got a GW 20Mhz crt scope for free!!! Thanks for your work.

@shivunchinniah 7 лет назад

Love your work hope 2017 is a GreatYear!

@Gschwontikong 7 лет назад

Can you connect it to the Gate of a MOSFET and power your circuit through the mosfet from a better power supply? I know it works with square waves, but what happens to sine and sawtooth waves?

@Unknownety 7 лет назад

The function cheap generator I would recommend is the FY32024S. (Price is around 80 usd) As it has 24 MHz output for a decent sine wave. 4-6 MHz for Arbitrary wave forms, square, saw, and audio. Other then this it has rather nice build quality, the case feels really cheap though, not to mention weighs so little that putting in a lead weight could be considered and upgrade.

@elhoucineeddali2839 5 лет назад

what are uses or tests we can do with triangle waveform. thanks

@paulwedlock9788 7 лет назад

would it be possible to procure a bypass filtration system for cleaning up the outputs? Also transistorised outputs would eradicate the losses? (if the signals are cleaned up enough:-)

@mehmetelen7435 7 лет назад

I am in love with your oscilloscope 😄

@majdinj 7 лет назад

Me too, if I have the money😅

@Lovreli 7 лет назад

great scott can you do a video on induction heating and how it works , also can you make a comparison on cheap chinese induction heaters and a homemade one. thanks.

@joan6963 7 лет назад

Hi there, nice video. I would like to know if you have considered to look for the cheapest function generator that provides you the "same"features than the expensive one? Thanks and happy new year

@rafaelmarroquin4429 7 лет назад

great video happy new year :)

@kvlpnd 7 лет назад

very nice video again..!!! Btw the cost of your CRO is more than the total fees of my whole electrical engineering. :D

@janliptak5659 7 лет назад

Where did you get that case for PCB? I need something like that for my function generator. Thank you very much :)

@electronics3992 7 лет назад

I bought 10$ signal generator from ebay with lcd screen , I tested it on HAMEG HM203-6 and it works great

@polyedror 4 года назад

Great videos! Could you compare it with a DIY function generator based on MAX038?

@artuino9404 5 лет назад

He is the reason i open youtube

@heinztroll5526 7 лет назад

I've got a question. Can a round transformer become something useful?

@letsmakearduinoprojects5818 7 лет назад

nice video happy new year

@attilamorvai 7 лет назад

Fantastic!! Great work!!!

@RedPill-experience 7 лет назад

If you buy the separate parts on eBay you spend much more than 6 euro! Fantastic!

@hal8000b 7 лет назад

Hi Scott. How easy is it to adjust sine wave amplitude to low output levels , say 10mV pk-pk for audio testing on the Ascel AE20125? The single amplitude control of up to 5V with 270 degree rotation would probably output 185mV for every 10 degree rotation. Downloading the manual and looking at the final LM6181 output amplifier has a gain set by R3/R2. Wonder if increasing R3 to say 1k will reduce output amplitude for testing high gain circuits. Thanks in advance.

@ravitdayal3876 7 лет назад

happy new year to you sir

@Berred 7 лет назад

Beside the problem of the DC offset at the cheap one there is the a PCB mistake for the left potentiometer (turning right means decreasing output instead of increasing). But you can fix this problem by changing two pin of the pot.

@power-max 7 лет назад

if you dont need high frequencies, you can use an audio DAC. I found that the headphone of my phone is DC coupled!

@Debraj1978 4 года назад

audio amplifier output always has a capacitor in series, hence they are not DC coupled. This is because, any 0Hz DC will cause continuous current in headphones/ speakers and it will burn out the coil.

@GeraCalvi 7 лет назад

Question: how many volts and how i do to light on the lamp of scanners? that small and thin lamps....

@giacomo1191 7 лет назад

I was thinking, could we reduce the output impedence and increase the amplitude with a couple of opamps ? One for increase the amplitude and one like a buffer

@petersage5157 3 года назад

If all you need is a test signal for audio equipment, give both of these a pass and build a Wien Bridge Oscillator. The NTC thermistor (one of several once-common panel lamps) can be a little hard to source, and you'll have to put a few standard-value resistors in series to get the right values from the application note, but other than that, it is fairly easy to build and produces a very low distortion sine wave.

@zjjpp1 7 лет назад

happy new year

@tylerpeppy1450 3 года назад

Got so say, I own one of these and it is great for what I do!

@michalnemecek3575 5 лет назад

your function generator is the first instance of Æ in a model number I have ever seen

@thewolfyyYT 7 лет назад

I love your videos! You deserve more sunscibers! :). Keep em vids comin'!

@SreenikethanI 4 года назад

I'm sure the sunscribers will be BRIGHT! … Ah, there's the door. I'll see myself out.

@pawan8644 7 лет назад

which camera you use for recording the videos and also the microphone u used please tell

@astafzciba 7 лет назад

hi greatscott. i've looked through a lot of your videos and didn't find a tutorial about making an efficient circuit to regulate current for leds, I want to make a super bright flashlight but don't know how to do it

@aloooox 7 лет назад

Hi there greatscott!, i have bought myself a DIY tube headphone amp kit, and have assembled it myself, the only thing is, its making strange sounds when playing music, almost like its fading in and out really quickly, I thought it might be the 12vAC power supply being rubbish, but im just not sure, the kit i have is similar to "6J1 Tube Pre Amp Amplifier Board Valve Buffer PreAmp Amplifiers DIY Kits Tube Preamplifier Board Gall Buffers Amplifier DIY KIT" on aliexpress

@jimc52 7 лет назад

Great. I am looking for a function generator so this helped

@arrshithrg5359 7 лет назад

can we vary output voltage ?? or amplitude

@shoaibakhtar2484 7 лет назад

Hello Great Scott, I have watched all your videos and you are great. I want that can you send me a link of how to set up the rf transmmeter reciever or make a video on this????

@pavankalyan_varudu1515 4 года назад

awesome video credits: great scott!

@nidhal1977 6 лет назад

Dear Scott, what kind of Oscilloscope do you use? Can you please provide a link? I'm building my work station and I'm confused about all the oscilloscopes, and how to choose a good one that is accurate, reliable and affordable.

@mrrodgersphysics 5 лет назад

Man, you've got some cool toys!

@pragadeeshsv6596 5 лет назад

Interesting my favorite channel 😍😍😍😍

@samhoff1724 5 лет назад

I bought this little thing as my 1st function gen and it lasted 2 months now getting new one for $70

@lerakelemen1801 4 года назад

Is it possible to also listen to the generated waves? If I purchase the 7USD one?

@rawux1228 7 лет назад

There is like 12$ kits with lcd screen and more features on ebay.

@jberry7640 7 лет назад

Could you possibly do a electronics basics about audio amplifiers?

@blazer6248 3 года назад

So if I wanted to send this through a guitar amplifier, all I would need to to is attach a jack to the output & ground wires?

@paolomartini150 4 года назад

I thought about using the function generator from an app on my phone. Then build a board that would need a jack to plug in and have isolating transistors or opto isolators with a power supply of its own to get the signal from the phone and amplify it. Being isolated and a separate unit, even if it blows up it shouldn't mess up the phone. Any ideas? I don't think the waves are going to be clean coming from a digital generator.

@TheDevilGuy230 7 лет назад

hey sir I have watched your video and have seen that you have measured current of a battery can you tell how have done that

@twintempletech9593 7 лет назад

Do they have DIY multimeters?

@cyborgsheep6077 7 лет назад

hey great Scott it would be cool if you did a comparison between all forms of ardino boards (mega, uno mini etc)

@uN1Qu3DZ 7 лет назад

For $7 that is an absolute beauty. Add a transistor buffer circuit and a bunch of parallel capacitors to make sure you pass all the frequencies correctly and you have a very usable basic piece of kit. Any good frequency counter kit that you would recommend? I have all the parts to build a 1GHz counter including the prescaler IC but i'm still trying to find an excuse not to haha.

@carlos2004 4 года назад

i might pick one of these up at a later time once i start getting more into circuit building. just got my first oscilloscope (the $20 one) and right now i'm just using and android app on my phone. seems to be good for less than 5k for square and up to 20k for sine. once i need the higher frequencies, ill will look into a proper function generator.