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
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
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.
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.
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.
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.
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!
Yes, a video on the oscilliscope kit would be awesome. You got my hopes up there brother, for a second I foolishly thought I could avoid paying 100+ for a functional generator. But as you say "You get what you pay for". You pay peanuts you get monkeys, right? And so on. Many thanks GreatScott for another upload.
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
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!
To have a known frequency if you need to track its way through a circuit and see if something changes, or to find what exact frequency you need for a resonant circuit. That would be my guess.
if you have a part that has been filled by the manufacturer with resin to prevent identifying it, you can put a known signal through it and measure the changes to figure out what the circuit is
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.
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.
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 !
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.
I liked this comparison video. I have a FY3224S twin channel arbitrary waveform generator, which retails at (ebay.com) about $60, (Banggood) about $73. It is a great device, there are reviews of this device on youtube.
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
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!
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?
i got a 20 kg function generator from my dads work becues it was borken now i have fix it and am never gonig to get rid of it cues that is a one in a life time.
They could have probably added an op amp buffer or push-pull output to the $7 one and vastly improved the output impedance without drastically altering the cost.
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:-)
Hey scott what about building your own function gen would be a nice projekt for you and is not that hard to do. You only need a r2r network and a fast microcontroller like a teensy for good results.
Happy new year, can you please make project of vhf radio receiver for receiving very high frequency i.e. Above 105mhz to listen to atc communications please??
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.
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.
If I want to know everything about electronics what should I do ??????? Will you please suggest me some books on this things I mean in electronics.... I am a big fan of you and I love physics...
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.
Sir since Chinese kits never come.with directions did you find any on the internet and were ,if you could please help me ,I want to build that kit to for my pocket ocilloscope .
I ordered the DS1074Z Ocilloscope from Rigol, but they shipped me the DS1074Z-S instead (the same oscilloscope but with a 2 channel 25MHz function generator built in). They ended up letting me keep it lol.
Hey apocolyptic. You missed the 31 dollar arbitrary waveform function generator kit on ebay. ad calls it mini dds arbitrary waveform digital function signal generator DIY kit panel v9t7. Ok upon looking deeper into it, it doesn't do 1mhz even sine wave only goes to 200khz.
FWIW, these days you can get a full 2 channel 24 MHz arbitrary waveform generator with USB interface that supports frequency sweeping and all that jazz in a nice case for about $70 on eBay. The same units are on Amazon and the reviews there are pretty good.
Have you actually checked the things like jitter and harmonic distortion of sine wave in this chinese 7$ wonder? I don't remember XR2206 looking THAT bad on the scope but considering this IC is long out of production and they're using Chinese fakes to stock these kits with parts it isn't too surprising. Another trouble with these XR2206 kits is that sine/triangle/square outputs don't have the same amplitude and people designing these boards never bother to actually get it right using some kind of buffer/amplifier sections.
Get the cheap one. If you don't have an oscilloscope you'll never know the difference. Just kidding. There's some snazzy function generator on Android. How do these compare with the real thing? Is it possible to use the audio, say in the case of www.wolphi.com/interface/ a Wophi link?
Hey I’m using dso138 + this 7$ function generator to see the output of clipper circuit. But at the output I can’t see clipped waveform , instead I’m getting full wave , can you please help me ?
Hey! Can we add a non inverting amplifier using opamp for amplitude adjustment and for lesser output impedance? If yes then why isnt it a thing? Why dont they do it in the kit. Why dont people talk about this?
So if you're putting out a MHZ, especially by connecting the frequncies to your body, does it affect the ears in some way so as to make you lose your hearing? I know microwave ovens don't do this, but is it true in this case?
I bought one of these for £3. As much for soldering practice as to make a test signal. The quality of the photocopy of parts list is very poor though. And no instructions per se. I definitely got what i paid for but if i needed a proper signal generator I do know someone with one.
for me this was just a fun soldering kit, at 5 euros it's really cheap and an additional usecase is using it to test guitar amplifiers. You don't need accurate waves there, you just need a wave.
you should do like a challenge where you have a project but you can only use cheap stuff, like a cheap soldering iron, cheap lab bench power supply, the cheap ociloscope and the cheap function generator
You could also, if you already are buying a decent oscilloscope, choose a model where the function gen. are integrated. I have been very satisfied with the integrated function gen. in Keysight scopes. But nice video
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
He is the reason i will do electrical engineering 😀
Awesome!
PC B electronics and programming and mechanics = robots!!
Aneesh!! I already started electronics engineering and he helped me a lot with his great videos 😊
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
im already studying electro-technical school
How about comparing a low cost lab power supply to a high cost one? :D
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
MrSandoron i bought a very cheap 20v-2a psu for 40€ and it works perfectly fine.
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 ($200) that has two adjustable outputs, which seems like a good deal, but I didn't like how they set up the controls on it and decided I'd rather buy two 3005Ds than one of the dual output ones, when I got to where I needed another supply.
You can improve the precision of current knob by changing it to multi-turn potantiometer. You should keep in mind that the multi-turn pot knob is bigger than one turn one.
If you already have the parts laying around to build your own, that would be the cheaper route. Though if you do not have the parts and are going to purchase the eBay one doesn't look so bad.
Love your projects man! I am an Electrical Engineering student, and I want every one of your videos....I learn more from them than I do my lectures.
You are doing this buzzfeed titles now :D
If all you need is a test signal for audio equipment, give both of these a pass and build a Wien Bridge Oscillator. The NTC thermistor (one of several once-common panel lamps) can be a little hard to source, and you'll have to put a few standard-value resistors in series to get the right values from the application note, but other than that, it is fairly easy to build and produces a very low distortion sine wave.
I love the way you talk. When I read tech books I use your voice in my head.
That's creepy
Same. My Diff Eqns professor had a thick eastern european accent. Whenever I have to read dry math books/papers, that's how I imagine it
I read my c++ tutorials with a Jamaican accent. “FIRST....webegonnalearnaboutdastringMON”
you are in love?
Sometimes i listen to audio books when im working, then when i read an actual book, its in the robot voice in my head
I bought 10$ signal generator from ebay with lcd screen , I tested it on HAMEG HM203-6 and it works great
Great Scot's law.If he says RIGHT its always no.
can't understand
Riiiiiiight? ;)
Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiight? ;)@@HazeAnderson
3:18
very nice video again..!!! Btw the cost of your CRO is more than the total fees of my whole electrical engineering. :D
Love the title, how it's mocking buzzfeeds comparisons.
Cool video, didn't know you could get them as cheap as $7 :o
If you buy the separate parts on eBay you spend much more than 6 euro! Fantastic!
your function generator is the first instance of Æ in a model number I have ever seen
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.
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!
Yes, a video on the oscilliscope kit would be awesome. You got my hopes up there brother, for a second I foolishly thought I could avoid paying 100+ for a functional generator. But as you say "You get what you pay for". You pay peanuts you get monkeys, right? And so on. Many thanks GreatScott for another upload.
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
I bought this little thing as my 1st function gen and it lasted 2 months now getting new one for $70
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!
What is the reason for using this machine?
To have a known frequency if you need to track its way through a circuit and see if something changes, or to find what exact frequency you need for a resonant circuit.
That would be my guess.
A Real Stoner Story it gets the girls every time!
if you have a part that has been filled by the manufacturer with resin to prevent identifying it, you can put a known signal through it and measure the changes to figure out what the circuit is
Aeolwn how
Aeolwn Thanks for your efforts.
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.
I was looking for this in ebay n not very sure of its function. Thanks for your review.
if you dont need high frequencies, you can use an audio DAC. I found that the headphone of my phone is DC coupled!
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.
Happy new year! Great video as always Scott
HA bad pun is bad
You can use an voltage follower
you are supposed to put the dollar sign before the number. example $5
Great! I love your projects!!! Happy new year.
Thanks. Happy new year as well!
GreatScott! Hi alles gute Guten Rutsch unf frohes neues Jahr 2017.
Hab mal ne Frage wie ist deine Einstellung zu Bascom?
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 !
GreatScott! 2018
Can you please make a video on rotary encoders?
Happy new year!
Man, you've got some cool toys!
hi great Scott, can you make a video on things you can make with the N555. btw what do u do in your free time,happy new year
I already did a basics video about the 555 timer
GreatScott! I meant what u can make with it
+GreatScott! make some projects using Ne555
Yes! Make some projects using 555 timer!
have you ever done things with digital circuits or logic gates such as FPGA boards? maybe an idea for a future video.
I wish I could just ask him questions about certain circuits 😅😂
Could you do a video on that oscilloscope kit?
Buy a cheap DSO112A (or similar) instead.
th-cam.com/video/x19kwG-wJRI/w-d-xo.html
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.
why does everyone keep talking about buzzfeed
I liked this comparison video. I have a FY3224S twin channel arbitrary waveform generator, which retails at (ebay.com) about $60, (Banggood) about $73. It is a great device, there are reviews of this device on youtube.
The $ sign is supposed to go in front of the number example: $3
You could try to add that capacitor and feed it into an op amp setup as a voltage follower with a bjt or mosfet output stage
I really find your comparisons and reviews of cheaper equipment as it is helpful for us on a budget
Cool Video. Can you make a Video about your Touch Oszilloskope. Thank you and stay creativ.
Interesting my favorite channel 😍😍😍😍
I am in love with your oscilloscope 😄
Me too, if I have the money😅
Thanks to you I am now a student of electrical engineering! Thank you for the inspiration!!!!!
Cheers from Greece.
Great videos! Could you compare it with a DIY function generator based on MAX038?
There is like 12$ kits with lcd screen and more features on ebay.
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
5 years in the future, $180 oscilloscopes have decent function generators built in... Huzza?
great video happy new year :)
I don't understand most of your video, but I like it, great video
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!
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?
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?
Who'd have thought that the $7 wasn't as good as the $107 one 🙄
i got a 20 kg function generator from my dads work becues it was borken
now i have fix it and am never gonig to get rid of it cues that is a one in a life time.
They could have probably added an op amp buffer or push-pull output to the $7 one and vastly improved the output impedance without drastically altering the cost.
where is the cheap oscilloscope from you showed in the video?
I presented it in a previous VS video
I can't believe this guy doesn't have 1,000,000 subscribers (best quality videos!)
905k right now!
1.89M now
where do you live i am coming to your country we live together ...
Arduino function generator?
>high freq DAC
>high external clock
>some code
>some parts
>boom?
no
Happy New Year, Love Your Videos, Great Scott!
could you pleasse make an arduino qwerty keyboard .
i need guidelines
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:-)
Hey scott what about building your own function gen would be a nice projekt for you and is not that hard to do. You only need a r2r network and a fast microcontroller like a teensy for good results.
professional...I like it
I just ordered one of those $7 function generators to play around with. Thanks for the informative video.
wow happy new year. .. my best wishes to you from India ,😁😀😃
Happy new year, can you please make project of vhf radio receiver for receiving very high frequency i.e. Above 105mhz to listen to atc communications please??
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.
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.
happy new year 2017 to great scott ?!?!?!?!?!??!?!?!??!?!?!?!!?!?!?!?!??!?!?!?!?!??!?!?!????!??!?!??!???!??!?!?!?!?!?
Thanks
If I want to know everything about electronics what should I do ???????
Will you please suggest me some books on this things I mean in electronics....
I am a big fan of you and I love physics...
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.
Make a video about diy oscilloscope from true hole components.
Through hole*.
Yes
Can you create a video on free energy generator Mr Great
Sir since Chinese kits never come.with directions did you find any on the internet and were ,if you could please help me ,I want to build that kit to for my pocket ocilloscope .
awesome video credits: great scott!
Awesome video as always! What do you think about this one from Banggood? FeelTech FY2300 6MHz Arbitrary Waveform signal generator. $70.00 US.
I ordered the DS1074Z Ocilloscope from Rigol, but they shipped me the DS1074Z-S instead (the same oscilloscope but with a 2 channel 25MHz function generator built in). They ended up letting me keep it lol.
Hey apocolyptic. You missed the 31 dollar arbitrary waveform function generator kit on ebay. ad calls it mini dds arbitrary waveform digital function signal generator DIY kit panel v9t7. Ok upon looking deeper into it, it doesn't do 1mhz even sine wave only goes to 200khz.
FWIW, these days you can get a full 2 channel 24 MHz arbitrary waveform generator with USB interface that supports frequency sweeping and all that jazz in a nice case for about $70 on eBay. The same units are on Amazon and the reviews there are pretty good.
hey can you make a mini cnc using arduino nano ??and explain the gcode in ditails please
Have you actually checked the things like jitter and harmonic distortion of sine wave in this chinese 7$ wonder? I don't remember XR2206 looking THAT bad on the scope but considering this IC is long out of production and they're using Chinese fakes to stock these kits with parts it isn't too surprising. Another trouble with these XR2206 kits is that sine/triangle/square outputs don't have the same amplitude and people designing these boards never bother to actually get it right using some kind of buffer/amplifier sections.
Nice voice crack at 3:21
You are best in electronics. (Happy new year)
Get the cheap one. If you don't have an oscilloscope you'll never know the difference.
Just kidding.
There's some snazzy function generator on Android. How do these compare with the real thing? Is it possible to use the audio, say in the case of www.wolphi.com/interface/ a Wophi link?
Hey I’m using dso138 + this 7$ function generator to see the output of clipper circuit. But at the output I can’t see clipped waveform , instead I’m getting full wave , can you please help me ?
Nice video
GreatScott CAN U MAKE SOMETHING ABOUT SUPER CAPACITORS IN NEXT VIDEO PLS !!!!!
Hey! Can we add a non inverting amplifier using opamp for amplitude adjustment and for lesser output impedance? If yes then why isnt it a thing? Why dont they do it in the kit. Why dont people talk about this?
which camera you use for recording the videos and also the microphone u used please tell
So if you're putting out a MHZ, especially by connecting the frequncies to your body, does it affect the ears in some way so as to make you lose your hearing? I know microwave ovens don't do this, but is it true in this case?
hello
I bought one of these for £3. As much for soldering practice as to make a test signal. The quality of the photocopy of parts list is very poor though. And no instructions per se. I definitely got what i paid for but if i needed a proper signal generator I do know someone with one.
I actually wouldnprefer the nicer signal generator. I would use that cheap one fir a DRSSTC driver interrupter if possible.
for me this was just a fun soldering kit, at 5 euros it's really cheap and an additional usecase is using it to test guitar amplifiers. You don't need accurate waves there, you just need a wave.
you should do like a challenge where you have a project but you can only use cheap stuff, like a cheap soldering iron, cheap lab bench power supply, the cheap ociloscope and the cheap function generator
Why don't you try to make a smart lamp switch with Sonoff? Regards,Eugeniu
You could also, if you already are buying a decent oscilloscope, choose a model where the function gen. are integrated. I have been very satisfied with the integrated function gen. in Keysight scopes.
But nice video
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
I have an app for dmartphone called function generator and it works perfektly for standard things