+Beta Seven Because schools, if yours are like the ones in the US (assuming you're not in the US), don't actually teach you anything you need to know or are interested in, unless it's an elective or you luckily find (for example) history interesting.
For all we know, that very well could be true. Although, end result is the same either way. Knowing who these figures are helps you absolutely in no way, unless you're a history major then yeah that'll help. I'm a firm believer that schools should teach you things that no matter who you are or what you do, you'll need to know these things. How to do your taxes is a good example.
@@l4d2160 I believe you missed the point of a school. The idea of teaching a wide range of things in a lot of areas comes from the objective of making you become a person that has a decent understanding of the world. History classes weren't my favorite eighter, but now it helps me to know why something is happening outside my country. I'm from Brazil, by the way. Always studied in public institutions. Maybe I was really lucky and had the best teachers every year for 14 years.
Years ago, my sisters 1 yr old TV just stopped working "for no good reason". Sure enough, a careful look noted a suspect capacitor "bulging" at the top (that is why they have that scored x in the metal, so that it doesnt become a projectile). Went to Radio Shack, spent a $1.50 on an equal value capacitor, soldered to PC board and bingo, worked. Longest part of job was tackling the 57 screws to get the panel off / on. Good info here, thank you!
Would an aftermarket capacitor always work, as long as it is of equal value? Are there some compromises that cannot be made, e.g. capacitor type must be the same? I just fear that something "proprietary" might be on appliance capacitors and they may not be replaceable with off-the-shelf parts
@@re.liable Id hate to say 100% yes, but I can't see why not as long as the values match, even the materials shouldn't matter ie ceramic, metal, etc. Good luck!
I'm studying electronics at university, it's quite interesting, but there are no practical works. This channel is a nice solution for that. I have learned a lot. Thanks! :)
Outstanding training video on Capacitors. Best I have ever seen! And certainly a lot clearer and more useful than the info I learned in EE class years ago. Very well done - and - thanks !!!
Been a Sub for a long time. And each video is always top notch. You might not be a diy King but you're definitely an electronics king. Top work GreatScott
Respekt, du machst echt super Videos. Ich schaue mir deine Videos schon länger an und muss dich echt loben. Du hast auch dafür gesorgt, dass ich ein riesiger Arduino-Fan bin.
Awesome video. Better that most I've seen because of the real life examples on how to build one and capacitive reactance and so on. Keep up the good work. Cheers :)
Just wanted to ask. Are these good quality capacitor brands? ,Murata ,KEMET ,AVX ,Vishay. im starting to do more SMD stuff and i dont know which brands are good or bad and prices go up and down all the time so that dont help
I remember going down to my local scrapyard and picking up a load of old electronics from their "breaker" skip, there were TVs, Radios, Games consoles (Handheld and full system), even some PCs! Tested them all and most of them didn't turn on, checked the caps and realized the majority were blown, swapped them out and ended up with almost £3000 worth of working electronics for their scrap price! (About £60!)
got a huge tv, broken of course from my father, took it apart, replaced 1 capacitor.. and now i have a huge tv!, a huge improvement from my b/w crt tv, i always tell this story, but this time i at least have the context of this video to go with it. never throw something in the trash without attempting to repair it!
Great stuff. One small correction on 2:09: The more capacitance and greater maximum voltage rating a capacitor gets, the more energy (not power, which is energy divided by time) it can deliver.
these videos are way more well filmes and understandable, last but not least more professional then many others on the same topic out there! Even if you sound a lil bit german XD
Great video, as all of these "basics" videos from you are =) Really like them! I do like your other videos as well of course =) However, if you haven't planned for it, how about a video on Mosfets? I can't remember anything back from school about them, and I hardly have any knowledge of them so I thought maybe you could do another excellent video with that as subject? Would be cool! =) Keep up the great work!
For those who would like a tiny analogy: The absolute best analogy for capacitors and resistors is a mass-spring system. Voltage would be force, velocity is current, inductor is Mass, capacitor is a spring, and resistance is friction. instruct.math.lsa.umich.edu/lecturedemos/ma216/docs/3_4/spring.png Trust me the equations are Identical to a rlc circuit.
hello, i just started studying electronics for 2 months now hh only basics, and i have one simple question it may seem obvious for you guys but for me as a beginner things are still sometimes vague for me, my question is: Why would Capacitors be destroyed when you reverse their polarity, since they can also be used in AC current? as it is known that in AC, Current switches its direction through time, and thank you so much for help.
I repaired 3 monitors replacing the blown caps. In the store they declared me to be crazy. I was't the only problem. Just got the same F rating and replaced them with higher voltage versions in my case i put in some panasonic caps. And 5 years after the repair i still use this lcd monitor (made by samsung). I think they use bad component's on purpose. With higher grade caps it ran 5 years for now after repair. While they ran 2 or 3 years after purchase. Two same lcd had same issue bought the caps for both while one gave up after 2 years. I'm like 6 euro for all the caps. I'm not going to take a risk on the second monitor. One of them has a bad line in the display ( after 5 years of total use) non repairable. And repaired a hp monitor the same way. One advice buying a monitor. Buy it without a power supply into it. So you can manual replace it without any issue.
I've repaired 5 monitors, 1 radio, and 2 Pentium 4 motherboards. And yet have to find out if it works for power supplies. Just be sure you're checking the heat rating when buying new caps, I had to replace the caps on the first monitor, again, after not realizing cheaper means lower heat rating.
Yeah the heat rating. That can screw you over. Pretty bad. Especially on monitors as they have no active fans. Just pay the price for caps and we are talking like 6 to 12 euro/dollars per monitor.. They should be better then the once inside. And for the temp rating there was no reference on the ones in the old monitors so i took the ones with the highest value available at store. Also check the size. Had to run a wire for one cap as it didn't fit otherwise. No problem for me but could be a issue.
killerbeenl The need to run a wire shouldn't be an issue as long as the cap is in a location that isn't any warmer that the location on the board, and the wire can handle the load. I can't remember what I payed for mine, but I believe that my first monitor's first round of recapping cost me under 5 USD, and the second round was double that. I believe it applies to anything you fix that is over 10 years old, a re-cap and resistor replacement usually solves the problem.
Hey GreatScott!, I recently subbed because I'm a programmer who is interested in learning about the hardware end of things, and of all the electronic channels I've found, I really enjoy yours the most! I admire your knowledge on the subject, and want to learn as much as I can! I have yet to start any project with electronics, so I don't want to foolishly pick a project too difficult for me. If that happened, I think I'd become easily discouraged. To avoid this, I was hoping you could recommend simple projects that are good for learning the usage/applications of all of the components you've covered in your Electronic Basic series (resistors, inductors, capacitors, etc)! Thanks, and I look forward to seeing more, awesome videos!
I found it best to visualise a capacitor as a reservoir holding back the water flow from a small stream. When held back, the flow accumulates within the capacitor and when released it has more force; the force of a faster river.
That makes a little sense, but it wouldn't be constant in that case. when it's releasing, the small river couldn't keep the reservoir filled. so is there like a reset or something? or something that triggers the release?
Landon Rivers when the metal plates are connected to the battery, one battery terminal takes electrons from one plate and the other terminal pushes electrons onto the other plate. so now one plate has many extra electrons and the other has an electron depletion. remember it's only the electrons (negative) that move and only in conductors (which is why they're conductors). The protons (positive) don't move. If you disconnect the battery the electrons have nowhere to go so they stay. like putting your finger over a balloon hole, no air can escape even if it wants to. because of the amount of electons on the plate, due to the size, it causes an electric field. what happens when you put two magnets of the same polarity together. They repel. simular here. All those negative electrons that were forced togethe in a plate want to repel. The centre of the plates is insulated. no electrons pass. but the field can bend the electrons on the insultor and this creates more space for storage. I'm no expert but I think I got it most right and I hope it helps
Would be cool if you showed more how you set up your circuits. You always just show some wires and stuff clamped together and then some oscillator, multimeter or supply output. How do you set up these examples, what sizes of the components are you using and why would really help.
When explaining charges, you should probably explain with electron flow (negative to positive), not conventional current (positive to negative). Makes more sense.
I made my own capacitor from 2 sheets of aluminimium foil separated by cling wrap. I folded it all up into a cube and taped it. I actually got 500nf out of it. But it leaked all of its charge very quickly. Rimstar has videos on making caps, dry andelectrolytic. I should make one of those some time.
This may be a vague question, but... Do you know what would be the average capacitance for a polarized capacitor, that can hold 20 kilovolts? Or if there is a method to finding the normal capacitance to keep something going for about 2 seconds?
Would be a great addition to hear your thoughts on testing capacitors (without the expensive capacitor tester you have) both in and out of circuits. Such as with ohm meters (out of circuit) and I only just learned of ESR testers, which I think can test in circuit though I am still not sure how they work, can’t figure out how they isolate the cap from parallel components in circuit.
My issue is a little off topic we build custom motorcycles and the bigger the motor the motor starin that is put on the batteries even if high CCAs. So what we are thinking about doing is adding a capacitor to give the battery a boost during starting. I have been watch all sorts of youtube videos on this and people are using anyware from 14v-50v capacitors. From my understanding is the voltage doesn't matter since that is just a maximum voltage the unit can handle and with heat and age that maximum voltage rating can drop causing the capacitor to burn out. So we are planning to use a capacitor at least 3x the bikes voltage which is about 13.8. But what we are most concerned about is the farad rating. I watch an HVAC companies video on capacitors and they say that too large of one can burn out their motors so they deal with microfarads instead. So we are wondering if this will be an issue with a motorcycle starter and other electronics that there is a certain farad rating we should stay below or not? I have see all sorts of capacitors for cars that ranged from 1 to 50 farads and more. I don't think we need anything that massive but we want something to give a good boost to the battery at start up so the bikes fire easier instead of lagging on the compression stroke with all the lights fading looking like the battery might not have enough oomf. Can you advise a capacitor rating? Since they will need to be small enough to hide on a motorcycle we will most likely just have to order basic capacitors from overseas and what not to wire ourselves compared to one of the large stereo units that comes complete ready to bolt in and connect the wires. Any help would be appreciated. Thanks,
Both sides get charged, not just the negative side. One loses electrons the other gains some. The component as a hole stays uncharged, same number of total electrons
Hi, Scott, it is a very nice capacitor introduction video. I like it. a question, how do you measure current with oscilloscope in another channel, i guess you measure the voltage on a resistor in series of the circuit, right?
Since you talked about a monitor/tv... I was just wondering if you might know whats the cause of the following issue with my granddads philips lcd TV... When switching it on, the image is upside/down, mirrorred around and the colours are similar to photograph negatives... after a while, about 15 minutes or so, it flips and works great... Shut it down and power it right back up and the image is still fine, but let it cool down and its the same thing over again...
Watching that capacitor burst half way through the video was really satisfying. I tried to achieve that a few weeks ago by reversing the polarity with a 9v but nothing happened. Can someone shed some light?
Just to make it clear. I fix TVs and electronics since the '90s and the most common fault of TV's is not a power supply and the capacitors ;). There are two main faults. 1 is a physical damage, 2nd is the backlight. Backlight should last much longer, but, these LEDs are in series and transfer a current for all of them through all of them. So, it's impossible for them to carry so much and not get used quicker by that ;). So, capacitors yes, they are culprits even in PS5 ;) and even SMD ones, not only electrolytic ones. But, are much less than these two factors ;). On top of all faulty TVs you can easily say that Vestel class is one of the worst if not the worst of all. So, Polaroid, JVC, Toshiba, Bush, cheaper Panasonics just to name a few are those poorer quality ones where you've got more chance of poor quality capacitors or even a design ;).
Good video ;) I have a idea for the next video Electrical Resonance (I know already what electrical resonance is, but a lot of people don't, so maybe you can explain them what it is) Alex
Might wanna stick in an annotation somewhere @2:02 to explain that Q = Charge and U = electric potential (in volts) as opposed to electrostatic potential energy (U_E, in Joules). This was very confusing at first as I looked up the symbol U and saw it used for electrostatic potential energy, but couldn't figure out where the volts were coming from until I saw it was related to electric potential. Also swapping the substitutions of Q and U around for the battery equation kinda contributed to the confusion. ^^;
Hey, @GreatScott, I know a very interesting trick with eletrolitic capacitors you could use for many projects...maybe you already knows the trick..maybe not...Well, the trick allows you to REVERT the capacitor's POLARITY without destroying it. To do that you simply need to solder two capacitors in series where the soldered pins are the same polarity and voilah (I think the word is voilah) you can revert the polarity without problem and charge normaly the capacitors. As everybody knows, in this configuration we sum the voltages limits of both capacitors and apply the formula for the total capacitance 1/Ceq = 1/C1 + 1/C2 + ... + 1/Cn ...hope you enjoy the trick and let me know if you tried! Greetings from Brazil! =)
electrolytic are mostly polarized, high farad level, low voltage. some ceramic ones are high voltage, low farad level, and mostly unpolarized. but dont mix up ceramic capacitors for tantalum
I kinda feel dumb for saying this, but i have learned more from GreatScott than in school. Keep up with the good work.
+Beta Seven Because schools, if yours are like the ones in the US (assuming you're not in the US), don't actually teach you anything you need to know or are interested in, unless it's an elective or you luckily find (for example) history interesting.
For all we know, that very well could be true. Although, end result is the same either way. Knowing who these figures are helps you absolutely in no way, unless you're a history major then yeah that'll help. I'm a firm believer that schools should teach you things that no matter who you are or what you do, you'll need to know these things. How to do your taxes is a good example.
@@l4d2160 in my country the teacher teaches you if u understood he says good if not he says its not my own problem
Omg i have the same monitor
@@l4d2160 I believe you missed the point of a school.
The idea of teaching a wide range of things in a lot of areas comes from the objective of making you become a person that has a decent understanding of the world.
History classes weren't my favorite eighter, but now it helps me to know why something is happening outside my country.
I'm from Brazil, by the way. Always studied in public institutions. Maybe I was really lucky and had the best teachers every year for 14 years.
Very nicely done. You keep things simple without "dumbing-down" the subject.
Thanks
you shuld change your background song pls it makes me go nuts listining to it all the times plz THX
Fred Zlotnick i
I love the song XD
I find these "basics" videos way beyond my electrical knowledge.
Maybe they will be useful after some studying on a lower level.
agreed
Years ago, my sisters 1 yr old TV just stopped working "for no good reason". Sure enough, a careful look noted a suspect capacitor "bulging" at the top (that is why they have that scored x in the metal, so that it doesnt become a projectile). Went to Radio Shack, spent a $1.50 on an equal value capacitor, soldered to PC board and bingo, worked. Longest part of job was tackling the 57 screws to get the panel off / on. Good info here, thank you!
Would an aftermarket capacitor always work, as long as it is of equal value? Are there some compromises that cannot be made, e.g. capacitor type must be the same?
I just fear that something "proprietary" might be on appliance capacitors and they may not be replaceable with off-the-shelf parts
@@re.liable Id hate to say 100% yes, but I can't see why not as long as the values match, even the materials shouldn't matter ie ceramic, metal, etc. Good luck!
You load lot of information, and virtually hands on experience in short videos. Keep on making videos. Eventually, I shall go through all of them.
I'm studying electronics at university, it's quite interesting, but there are no practical works. This channel is a nice solution for that. I have learned a lot. Thanks! :)
Even though I'm learning in Electronics in my high school and I've gone through two years of it already, this will still come in use for me.
Never stop making videos please....
Outstanding training video on Capacitors. Best I have ever seen! And certainly a lot clearer and more useful than the info I learned in EE class years ago. Very well done - and - thanks !!!
Been a Sub for a long time. And each video is always top notch. You might not be a diy King but you're definitely an electronics king. Top work GreatScott
That's what I needed someone to explain it in a basic way.
I feel like opening up
my monitor and replacing the capacitors.
i feel like opening up my capacitor and replacing the monitors
I had never thought of tearing down an electrolyte capacitor, that was very interesting to watch!
well done mate ... your efforts to "tell it like it is" are excellent ... together with the practicals. ***** (five stars).
Respekt, du machst echt super Videos. Ich schaue mir deine Videos schon länger an und muss dich echt loben. Du hast auch dafür gesorgt, dass ich ein riesiger Arduino-Fan bin.
Christian Z. Thanks
GreatScott! oh Sorry
I don´t know that.
Christian Z. He explained it in the "The Future of GreatScott! || Patreon" video.
Scott, thanks a lot for putting time and effort into these videos!
You are actually better than my university teacher!
Excellent descriptions! Now I have to go back and see the rest of your vids to see what else I can learn!
Really awesome. I'm a new sub and I learned a lot from this video .. Thanks
akramul haque You're welcome ;-)
Awesome video. Better that most I've seen because of the real life examples on how to build one and capacitive reactance and so on. Keep up the good work. Cheers :)
Excellent demonstration.
deltaray3 Thanks ;-)
Just wanted to ask. Are these good quality capacitor brands? ,Murata ,KEMET ,AVX ,Vishay. im starting to do more SMD stuff and i dont know which brands are good or bad and prices go up and down all the time so that dont help
I remember going down to my local scrapyard and picking up a load of old electronics from their "breaker" skip, there were TVs, Radios, Games consoles (Handheld and full system), even some PCs! Tested them all and most of them didn't turn on, checked the caps and realized the majority were blown, swapped them out and ended up with almost £3000 worth of working electronics for their scrap price! (About £60!)
One small correction, at 5:00 it's inversely proportional not indirectly. EDIT: nevermind, we are both correct it seems
Fantastic video as always! Great job Sir. Cheers
sex movies
Awesome... I learn so much from you and Afrotechmods. Thank you for being epic :D
Jordan O'C And thank you for the positive feedback.
OMG! Another Great vid from Great Scott !!! Only 46 mins old!
An other great vid from Great Scott! Great!
Joaquin Ortega :D
Keep up these videos. Good info, quality production!
you are a genius thanks. its for future generations
That is the most badass intro ever
got a huge tv, broken of course from my father, took it apart, replaced 1 capacitor.. and now i have a huge tv!, a huge improvement from my b/w crt tv, i always tell this story, but this time i at least have the context of this video to go with it.
never throw something in the trash without attempting to repair it!
or do and get me a free tv
Great stuff. One small correction on 2:09: The more capacitance and greater maximum voltage rating a capacitor gets, the more energy (not power, which is energy divided by time) it can deliver.
Where were you when i was in physics 2!? Good video!
This is just the type of explanation that I wanted.
Thanks a ton. Truly Great 😁
Another awesome Video. Really great,Please continue making such videos it helps a lot.
Thanks for taking time and making such educative videos
M&M, coca cola and GreatScott! what else can i ask for?
these videos are way more well filmes and understandable, last but not least more professional then many others on the same topic out there!
Even if you sound a lil bit german XD
Excellent video as always, thorough and well explained.
The phase shift part led me to review Impedance Triangle. Would be great if you'd do a video on that sometime.
Thanks for Scott I learned a alot with your video!
Great video, as all of these "basics" videos from you are =) Really like them! I do like your other videos as well of course =)
However, if you haven't planned for it, how about a video on Mosfets? I can't remember anything back from school about them, and I hardly have any knowledge of them so I thought maybe you could do another excellent video with that as subject?
Would be cool! =)
Keep up the great work!
Chris Fredriksson It's on my to do list.
GreatScott! Cool! Can't wait for that =)
Yes I agree, great series it's only missing mosfets
amazing video, you should be a professor
For those who would like a tiny analogy:
The absolute best analogy for capacitors and resistors is a mass-spring system. Voltage would be force, velocity is current, inductor is Mass, capacitor is a spring, and resistance is friction.
instruct.math.lsa.umich.edu/lecturedemos/ma216/docs/3_4/spring.png
Trust me the equations are Identical to a rlc circuit.
Hello “GreatScott!”.
You have been added on YouListed under the categories :
1) Technology : DIY Computers and other Electronic Projects
I am soo happy that I found this channel (I am 14 years old from Slovenia and I am so interested for ELECTRONICS and in class I am genius) !!!
gaming Jehart same here
But I'm 8 and Scottish
Matthew //Gaming & Tech\\ 2008 slovenia is better than scotland
sva ze dva...
Smo že trije.
3:47 That's the cutest explosion ever.
U should make a video about that monitor fix! This was really helpfull, thanks!
left hand writing is superb
Keep doing what your doing I love what your do and I learn so much thank you.
hello, i just started studying electronics for 2 months now hh only basics, and i have one simple question it may seem obvious for you guys but for me as a beginner things are still sometimes vague for me, my question is: Why would Capacitors be destroyed when you reverse their polarity, since they can also be used in AC current?
as it is known that in AC, Current switches its direction through time, and thank you so much for help.
I repaired 3 monitors replacing the blown caps. In the store they declared me to be crazy. I was't the only problem. Just got the same F rating and replaced them with higher voltage versions in my case i put in some panasonic caps. And 5 years after the repair i still use this lcd monitor (made by samsung). I think they use bad component's on purpose. With higher grade caps it ran 5 years for now after repair. While they ran 2 or 3 years after purchase. Two same lcd had same issue bought the caps for both while one gave up after 2 years. I'm like 6 euro for all the caps. I'm not going to take a risk on the second monitor. One of them has a bad line in the display ( after 5 years of total use) non repairable. And repaired a hp monitor the same way. One advice buying a monitor. Buy it without a power supply into it. So you can manual replace it without any issue.
I've repaired 5 monitors, 1 radio, and 2 Pentium 4 motherboards. And yet have to find out if it works for power supplies. Just be sure you're checking the heat rating when buying new caps, I had to replace the caps on the first monitor, again, after not realizing cheaper means lower heat rating.
Yeah the heat rating. That can screw you over. Pretty bad. Especially on monitors as they have no active fans. Just pay the price for caps and we are talking like 6 to 12 euro/dollars per monitor.. They should be better then the once inside. And for the temp rating there was no reference on the ones in the old monitors so i took the ones with the highest value available at store. Also check the size. Had to run a wire for one cap as it didn't fit otherwise. No problem for me but could be a issue.
killerbeenl The need to run a wire shouldn't be an issue as long as the cap is in a location that isn't any warmer that the location on the board, and the wire can handle the load. I can't remember what I payed for mine, but I believe that my first monitor's first round of recapping cost me under 5 USD, and the second round was double that. I believe it applies to anything you fix that is over 10 years old, a re-cap and resistor replacement usually solves the problem.
Apple doesn't even want you to be able to repair
Hey GreatScott!, I recently subbed because I'm a programmer who is interested in learning about the hardware end of things, and of all the electronic channels I've found, I really enjoy yours the most! I admire your knowledge on the subject, and want to learn as much as I can! I have yet to start any project with electronics, so I don't want to foolishly pick a project too difficult for me. If that happened, I think I'd become easily discouraged. To avoid this, I was hoping you could recommend simple projects that are good for learning the usage/applications of all of the components you've covered in your Electronic Basic series (resistors, inductors, capacitors, etc)!
Thanks, and I look forward to seeing more, awesome videos!
***** Search for 555 timer circuits. Classic beginners projects.
I need it dumbed down. I still don't get it.
me too :(
I found it best to visualise a capacitor as a reservoir holding back the water flow from a small stream. When held back, the flow accumulates within the capacitor and when released it has more force; the force of a faster river.
That makes a little sense, but it wouldn't be constant in that case. when it's releasing, the small river couldn't keep the reservoir filled. so is there like a reset or something? or something that triggers the release?
Landon Rivers when the metal plates are connected to the battery, one battery terminal takes electrons from one plate and the other terminal pushes electrons onto the other plate. so now one plate has many extra electrons and the other has an electron depletion. remember it's only the electrons (negative) that move and only in conductors (which is why they're conductors). The protons (positive) don't move. If you disconnect the battery the electrons have nowhere to go so they stay. like putting your finger over a balloon hole, no air can escape even if it wants to. because of the amount of electons on the plate, due to the size, it causes an electric field. what happens when you put two magnets of the same polarity together. They repel. simular here. All those negative electrons that were forced togethe in a plate want to repel. The centre of the plates is insulated. no electrons pass. but the field can bend the electrons on the insultor and this creates more space for storage.
I'm no expert but I think I got it most right and I hope it helps
Landon Rivers same :/
This is a good lecture on capacitors. Now, think about ground sign and why modern grounding is different from its original design =)
great video, i wish i had your videos back in school :)
best part 3:50
THICC
Great Video, GreatScott ^^
Really good video, great work!
great vid man. very helpful like me as a beginner
3:48 - a mushroom? xD That is a nice video! Keep doing videos like that!
Would be cool if you showed more how you set up your circuits. You always just show some wires and stuff clamped together and then some oscillator, multimeter or supply output. How do you set up these examples, what sizes of the components are you using and why would really help.
You got yourself a new subscriber :) awesome videos
Great job, Great Scott! :-) very very instructional.
When explaining charges, you should probably explain with electron flow (negative to positive), not conventional current (positive to negative). Makes more sense.
Thank you, great video, you covered a lot here!
Tnks I Learn From U All About Electronics
I made my own capacitor from 2 sheets of aluminimium foil separated by cling wrap. I folded it all up into a cube and taped it. I actually got 500nf out of it. But it leaked all of its charge very quickly. Rimstar has videos on making caps, dry andelectrolytic. I should make one of those some time.
Awesome video! Keep up the good work :D
GreatScott! Could you do a video on building a 7 segment 4 digit display?
Greetings from The Netherlands. Und ich spreche auch Deutsch ;-)
Werede It's on my to do list.
GreatScott! Können Sie sich eine mit einem Mikro-Controller und eine ohne einen Mikrocontroller tun?
MAX7219
Love your vids mate. Great work!
Excellent video! Thank you!
very great Scott!!!!!
Love these videos. Can you make one about transistors?
I like how he holds the pen/pencil
This may be a vague question, but... Do you know what would be the average capacitance for a polarized capacitor, that can hold 20 kilovolts? Or if there is a method to finding the normal capacitance to keep something going for about 2 seconds?
Very impressive series of videos. Please keep it up. A valuable resource for instructors and students.
Would be a great addition to hear your thoughts on testing capacitors (without the expensive capacitor tester you have) both in and out of circuits. Such as with ohm meters (out of circuit) and I only just learned of ESR testers, which I think can test in circuit though I am still not sure how they work, can’t figure out how they isolate the cap from parallel components in circuit.
wonder of Capacitor ! Nice tutor.
Awesome i learn so much from you ;)
very helpful video. thanks
Thank you so much, well explained....
U r the best bro!!
My issue is a little off topic we build custom motorcycles and the bigger the motor the motor starin that is put on the batteries even if high CCAs. So what we are thinking about doing is adding a capacitor to give the battery a boost during starting. I have been watch all sorts of youtube videos on this and people are using anyware from 14v-50v capacitors. From my understanding is the voltage doesn't matter since that is just a maximum voltage the unit can handle and with heat and age that maximum voltage rating can drop causing the capacitor to burn out. So we are planning to use a capacitor at least 3x the bikes voltage which is about 13.8. But what we are most concerned about is the farad rating. I watch an HVAC companies video on capacitors and they say that too large of one can burn out their motors so they deal with microfarads instead. So we are wondering if this will be an issue with a motorcycle starter and other electronics that there is a certain farad rating we should stay below or not? I have see all sorts of capacitors for cars that ranged from 1 to 50 farads and more. I don't think we need anything that massive but we want something to give a good boost to the battery at start up so the bikes fire easier instead of lagging on the compression stroke with all the lights fading looking like the battery might not have enough oomf. Can you advise a capacitor rating? Since they will need to be small enough to hide on a motorcycle we will most likely just have to order basic capacitors from overseas and what not to wire ourselves compared to one of the large stereo units that comes complete ready to bolt in and connect the wires. Any help would be appreciated. Thanks,
🙏💓nice teach sirji 💓🙏
Both sides get charged, not just the negative side. One loses electrons the other gains some. The component as a hole stays uncharged, same number of total electrons
Hi, Scott, it is a very nice capacitor introduction video. I like it. a question, how do you measure current with oscilloscope in another channel, i guess you measure the voltage on a resistor in series of the circuit, right?
Since you talked about a monitor/tv... I was just wondering if you might know whats the cause of the following issue with my granddads philips lcd TV...
When switching it on, the image is upside/down, mirrorred around and the colours are similar to photograph negatives... after a while, about 15 minutes or so, it flips and works great...
Shut it down and power it right back up and the image is still fine, but let it cool down and its the same thing over again...
Watching that capacitor burst half way through the video was really satisfying. I tried to achieve that a few weeks ago by reversing the polarity with a 9v but nothing happened. Can someone shed some light?
Try a bigger voltage
Try a bigger voltage
I should note theyre electrolytic caps rated for 25v
Well you are under the max voltage. Try joining 4 9v batteries, that could work
Your videos r great
When I was 12,I called it a battery!
Now im 13 I know that for now how it works!
And now I know all the parts how it works even transistors
My lineal electronics teacher said once: "if you understad a RC circuit you understad electronics"
Just to make it clear. I fix TVs and electronics since the '90s and the most common fault of TV's is not a power supply and the capacitors ;). There are two main faults. 1 is a physical damage, 2nd is the backlight. Backlight should last much longer, but, these LEDs are in series and transfer a current for all of them through all of them. So, it's impossible for them to carry so much and not get used quicker by that ;).
So, capacitors yes, they are culprits even in PS5 ;) and even SMD ones, not only electrolytic ones. But, are much less than these two factors ;). On top of all faulty TVs you can easily say that Vestel class is one of the worst if not the worst of all. So, Polaroid, JVC, Toshiba, Bush, cheaper Panasonics just to name a few are those poorer quality ones where you've got more chance of poor quality capacitors or even a design ;).
Great video..
What type of capacitor would you recommend to put in front of a thermal flasher on a car to make it blink faster
Good video ;)
I have a idea for the next video Electrical Resonance (I know already what electrical resonance is, but a lot of people don't, so maybe you can explain them what it is)
Alex
High Voltage I put it on my to do list.
GreatScott! Awesome :)
Might wanna stick in an annotation somewhere @2:02 to explain that Q = Charge and U = electric potential (in volts) as opposed to electrostatic potential energy (U_E, in Joules). This was very confusing at first as I looked up the symbol U and saw it used for electrostatic potential energy, but couldn't figure out where the volts were coming from until I saw it was related to electric potential.
Also swapping the substitutions of Q and U around for the battery equation kinda contributed to the confusion. ^^;
Hey, @GreatScott, I know a very interesting trick with eletrolitic capacitors you could use for many projects...maybe you already knows the trick..maybe not...Well, the trick allows you to REVERT the capacitor's POLARITY without destroying it. To do that you simply need to solder two capacitors in series where the soldered pins are the same polarity and voilah (I think the word is voilah) you can revert the polarity without problem and charge normaly the capacitors. As everybody knows, in this configuration we sum the voltages limits of both capacitors and apply the formula for the total capacitance 1/Ceq = 1/C1 + 1/C2 + ... + 1/Cn ...hope you enjoy the trick and let me know if you tried! Greetings from Brazil! =)
Thanks helped a lot :)
LTSpice ❤️
Would you explain voltage ratings of capacitors too please.
Great video. But my question is why different types of capacitors like electrolytic, ceramic etc?
electrolytic are mostly polarized, high farad level, low voltage.
some ceramic ones are high voltage, low farad level, and mostly unpolarized.
but dont mix up ceramic capacitors for tantalum