I've been an EE for 39 years and that was a really good explanation of inductors, capacitors and resonant frequency for people new to the subject. Great job!
That’s funny but he could probably make one of those home made fusion reactors. It could be like a long term project/long format video series. Whatever you want to call it.
I'm in highschool and I've just started learning EE and legit, the explanation at the start made soo much sense. You have been an amazing teacher, hats off to u
I highly recommend the book Getting Started in Electronics by Forest E Mims III. I got started on it when I was 10 or 11. It's an excellent book for someone getting started. And it gives intuition without bogging you down in equations. From there, the next thing you want to do is either a) get an oscilloscope for $500 or else b) learn how to use the program PSPICE to simulate circuits (it's free).
Since I couldn’t find the parts-list I went through the whole diagram and captured every component I saw. I don't know if anybody is still interested in this, but here’s what I got (this doesn’t include the parts for the audio amplifier): Resistors: - 2x 100 Ohm - 2x 470 Ohm - 2x 8.2 kOhm - 1x 2.2 kOhm Capacitors: - 3x 10µF - 4x 1.5nF - 2x 3.3pF - 2x 150pF Other needed Components: - 1x Antenna - 2x 1mH Inductors - 3x JFETs (as it was mentioned in the video, he used the TiS58) - 1x Variable Capacitor 4-50 pF - 1x audio Jack - Power Source I do not guarantee that everything in this list is correct, I gave my best, but feedback is always appreciated!
A cheap and dirty way to make a small variable capacitor is to twist some small wires (like solid cat 5 cable wires) together. You can change the capacitance by twisting and untwisting the wires. For the value you specified, two lengths about 3-4 inches long would be a good place to start.
You've done a good job although I can see how some people might get confused. The trouble is you'd need to visually show things like an induced magnetic field and electrons moving as that field collapses. And if you're going to go into that level of detail it's going to be a lot of work and make for a long episode. But none the less thanks for a really interesting video.
I'd love to see more circuit calculations. Maybe not in the video, but a link to something like a google document, with documentation on what to change and by how much for varied results. Like what you talked about with the antennae's capacitance vs the variable capacitor. What changes can we make to the variable capacitor, and what will those changes do to the resulting Rf?
Yeah WHY do almost ALL of these DIY theremins lack the volume antenna? >_< How the hell are you supposed to play these if you can basically only play one long note?
@@KRAFTWERK2K6 yeah but a key-like switch or something would probably be easier to adjust quickly; maybe connect it to an AREG or something to get a nice fade in/out
17:15 What is the wire He just randomly added to connect both breadboards? I literally think this is the last step I need! I just need to know what plugs into the audio other then the audio out, like is there a seperate audio in? cause as is I get a sound like a partially plugged in amp (so I assume thats what it is)
Hey I want to make this for the upcoming science fair but it’s kinda frustrating to jot down all the materials while watching the video and I was wondering if you could give me a list of materials. Please. If you’re able to.
....WOW!!!!!! I WANT TO KNOW IF A "THEREMIN" WILL RESPOND TO ANY "METALLIC" OBJECTS, WITHIN PROXIMITY TO IT'S ANTENNA?!!!... COULD THIS BE USED TO "SWEEP" OVER TALL GRASS, TO FIND METAL OBJECTS?!!...
5:00 That Epsilon in the formula is not the dielectric constant, but the permittivity, and that equals with the dielectric constant times the vacuum permittivity which is round about 8,9 * 10^-12 Q/Vm, so according to that you will get a capacity round about 10¹¹ times lower than with your explaination. Really interesting project though👍
btw for those who dont know, that short clip he played from "over the rain bow" was from Peter Pringle. Look him up , the star trek song he does on the theremin sounds amazing
Hello, I built this circuit but havent get sound from the antenna. I used J113 instead of 2N5484 and all the other components are identical. I got some strange radio like sound from amplifier but the antenna is not function at all.
Good stuff as always. I was wondering if you could do a whole video on the best old electronics to salvage and how to safely salvage components from them. I am a hobby DIY electric guy, who lives in poverty and doesn't have a dime to spare on parts. It would be helpful when i'm at a goodwill/thriftstore to know what electronic devices have the most useful components and how to remove them without breaking them. Thanks! also, are you going to college this fall? and if yes, is it for electrical engineering? i sure hope so cause we need people like you!
Can you please provide more details about the variable capacitor? I've got one, with three terminals, and looks like I'm lost in how I'll put it in the circuit.
So... Is there anyway you can do a video explaining what everything is, and what it does? You know, for us who aren't really savvy with most of the components you use. I hate to admit it, but this is definitely me. It would certainly make following your explanations easier. I learn a lot by watching you, but sometimes its a little hard to follow.
Hey Scott, I'm sorry to say this sort of stuff requires a lot of reading and practice to understand. That said it is very interesting and rewarding. I would reccommend starting with the learning tools at www.allaboutcircuits.com/ then see if you can get yourself some 2nd hand textbooks to read. One of the most valuable skills you can learn in tomorrows world is learning how to learn, but this wont happen if you ask someone else to teach you. You have to do it on your own. Best of luck.
I've found that simple guides to electronics just don't cut it. They cover the general properties of components but almost always skimp on the important detail, leaving people confused. But then I guess it's a catch-22 situation. For example do you cover RDSon and non-linear operation or do you just call a mosfet a switch? And how do you make complex topic simple but still fully functional?
The reason for the glossing over is as follows: If someone were to explain more than just what the lesson is focused on, where do they stop? In this field everything is related. You should react the same way. To do this, get a hold of the datasheets of components at hand and study them; know what sort of switch you need your MOSFET to be for a given application (there are many) and study that. The more datasheets you spend time with, the faster you will recognise relevant information. It is far too easy to waste time thumbing through pages of stuff you don't need to know to do a particular job. Once again, learning how to learn, because nobody else can learn for you. I hope this helps :/
btw, in the original circuit he used 1n5 on C13 which is 1mf(according to google) I would like to ask why you use 1.5nf instead. Did you test 1mf and get the best result from 1.5nf ?
How do modern units sample a voice? Yes I want to see how the volume can be controlled. Wouldn't the phase difference create a signal even without a change in frequency? Or is that just a DC ripple?
Wow! But hey, you're calling the dampened oscillation in resonant circuit the resonance itself (2:19) but it's a bit more complicated: resonance happens when the frequency of external power suplly is the same as circuit's own resonant frequency, this way circuit can very efficiently store energy while oscillating, so what I'm saying is that resonance is constantly growing (or just constant in some real life systems with losses) amplitude of the signal, not decaying one. Nevertheless, great video, as always!
ollie wallis knowing what a railgun is should be enough to know how to build one, if you don't know how to build the actual gun you shouldn't be trying right now, a better question would be about the coils or how to do it without expensive super-caps
I have always wanted to build my own theremin! Sooooo coool! I also saw your video on combining a plasma ball and theremin. Way cooler than just the LED lights I was going to settle for. I have an idea for an interactive artwork for an exhibit next January and I wanted to figure out how I could incorporate light and sound. This and the diy plasma globe will be perfect! Now I just have to figure out where to buy/ thrift all the parts I’m going to need and how to set them up inside my sculpture safely. I have a small old guitar amp to use for audio out. I want to make 12 small plasma globes and each one of them playing a different frequency so I can try to tune them to the 12 notes and halftones in an octave. I wonder how the circuitry for this will look and how complex that will make it. Thankfully my partner is an audio engineer and can help me out with some of the build and calculations.
hello, i have spent too long to look for a device that would cut off power supply when not in proximity. lets say for example, I am riding my bike and I have a device in my pocket, if for some reason my bike and I got separated (stolen) the ignition is cut off. thanks
Y'know, it's funny. I was made fun of for most of my life growing up for being right handed, and wearing my watch on my right hand. I thought nothing of it, of course. After all, I'm right handed, so it would make sense for my watch to be on my right hand. No. Apparently my watch was always supposed to be on my left hand so I could "operate" it with my right. This never made sense to me, and I'm also the outside-of-the-box thinker among my peers, so it's refreshing to see you have a watch on your right hand (the hand you write with). Also, great tutorial. I typed all of this under the trance of a DIY Theremin.
Hey Keystone, do you think you could make a dumbed down tutorial that may fit the parameters of a project I'm really looking forward to starting? I'm going to take a new skateboard and run individual red, blue, and green leds through it. The objective is to hide the arduino, leds, resistors, wires, battery, and other possible components inside of small cavities I'll make in the top of the board. The leds will shine through holes that will display the colors beneath the board as the grip-tape hides all of the electronics and cavities located in the top. I'd love to use the arduino to adjust brightness and colors, alongside using something as thin as a cellphone or watch batteries to power everything (lithium ion for recharging would be absolutely amazing if possible). I'm sure you're beyond experienced enough to conclude a circuit for this and I'd love to explain more if you're interested. It'd be nice to have a video out there that's generalized for this build since I know many people would go nuts over it.
And by dumbed down I don't mean I prefer you to leave math out of it. But I'd love minute explanations behind what's going on along with the math. This whole electronic's thing is like wizardry to me. I plug my computer into the wall and magical pixies make it all happen. (:
Yeah, that level of complexity is pretty trivial as things go. The color of the lights is a lot harder than the brightness though. You might need a microcontroller / arduino if you want to pick and choose colors... For the brightness part, I could have built that when I was 10.
Please show us the best way to produce HHO the quickest and with great PSI and without using a electrolyte. so I can use it as a torch to cut and to melt metal. Note I'll be going through thick metal so the length of the flame is important (psi)
Awesome video! Great detail about the actual circuit! Might actually build one of those. One idea for a video I have is like on how to build a simple Laser Engraver/Cutter out of mostly salvaged parts.
mine's don't work....i followed as the video.... can u show how to use connect 1/4 inch connector & pitch antenna and the power battery(9V) . i would be very appreciate if u can send some emails about connection details.....
How refreshing. Which engineering field are you most fond of, Keystone? lol "There should be lighting sound in a second." 18:26 Otherwise known as thunder. Very enjoyable tutorial.
With in two seconds of this video my eyes went over to the suggested videos Oh... a Theremin...WOW!! all this time I've been calling it the Star Trek instrument
Could you please make a vacuum tube related project, particularly a vacuum tube tesla coil? I've looked up some tutorials and they are really confusing, but you're really good at explaining things, so i think you would do a good job. :)
And for those of you out there who are overwhelmed.. Just forget the math. (Just think input and output - what do you need to put in, and what do you want out.) Look at the components. Orient the transistor correctly. Understanding the white breadboard will be clear once you ohm it out, or you can use a battery and a small light bulb. The "plus" and 'minus' run straight down the length of the board like 2 wires. They run on both sides for convenience. The horizontal holes that he mounts the components to are separate horizontal "share" wires that attach to nothing, and must be jumped to get power. You WILL get used to a breadboard and it will become clear with time.
My quest for autonomous garden instruments continues.... Unless, of course, somebody can tell me if a solar powered theremin is a: possible and b: possible for me to make :) . I don't need to understand the physics (indeed - I can't) but if somebody could point me at a step by step for a solar powered theremin... Ah. I'd love you.
Him: "Hopefully you can understand that"
Me: I hope he has a drawing explaining that
Him: "ok, let's move on to the math"
Me: ssshhhiiittt
Drawings are gay
NOT THE MATH! Nightmare which will haunt my whole life! x(
Git gud scrubs
Me : Oh i don't know english
That makes 2 of us
I've been an EE for 39 years and that was a really good explanation of inductors, capacitors and resonant frequency for people new to the subject. Great job!
thank you :)
Keystone Science. The only man smart enough to use a small TV as a hammer.
can you make a particle accelarator
krishna mohan what's the point
In making a joke? They're funny, like haha funny.
Jonathan Cluiss The point is making complex technology, avaible to people with less money.
krishna mohan I liked this comment assuming u're being sarcastic....
if ur serious you're either 12 years old or dumb, just dumb.
That’s funny but he could probably make one of those home made fusion reactors.
It could be like a long term project/long format video series. Whatever you want to call it.
Can you please give me the material list to make this??? I cant find it on the official page
Every electronics video should have a thunder storm. Keeps us grounded.
damn, I'll try to make this later, and I would love to see a more complete one, with the volume antenna
I bought a Therrmin for my daughter but she never touches it. ;-)
If you don't need it that's my dream lol
@@thedigitallabrat woooosh
*throws vegetables*
send it to me :(
@@mishasofia6091 if you didnt know thermin is not played by touching it.
Keystone Science: I'm glad there are people like you, who still honor discrete components! Thank you!
I'm in highschool and I've just started learning EE and legit, the explanation at the start made soo much sense. You have been an amazing teacher, hats off to u
I highly recommend the book Getting Started in Electronics by Forest E Mims III. I got started on it when I was 10 or 11. It's an excellent book for someone getting started. And it gives intuition without bogging you down in equations. From there, the next thing you want to do is either a) get an oscilloscope for $500 or else b) learn how to use the program PSPICE to simulate circuits (it's free).
Since I couldn’t find the parts-list I went through the whole diagram and captured every component I saw.
I don't know if anybody is still interested in this, but here’s what I got (this doesn’t include the parts for the audio amplifier):
Resistors:
- 2x 100 Ohm
- 2x 470 Ohm
- 2x 8.2 kOhm
- 1x 2.2 kOhm
Capacitors:
- 3x 10µF
- 4x 1.5nF
- 2x 3.3pF
- 2x 150pF
Other needed Components:
- 1x Antenna
- 2x 1mH Inductors
- 3x JFETs (as it was mentioned in the video, he used the TiS58)
- 1x Variable Capacitor 4-50 pF
- 1x audio Jack
- Power Source
I do not guarantee that everything in this list is correct, I gave my best, but feedback is always appreciated!
Hmm I’m sorry, I must have deleted my list at some point :/ I’ll verify on my diagram I have in my files and put in the description!! Thank you! :)
@@KeystoneScience Alright, you're welcome :)
And keep the awesome projects coming, I love your channel!
@@KeystoneScience the list seems to have gone missing again :( is there any chance you could but back the list and diagram in the description?
Hey, I understand this video is a bit old, but do you have a parts list or BOM for what you used in the circuit?
Mom: What did you rent from the band this year, honey?
Me: A THERAMIN.
A cheap and dirty way to make a small variable capacitor is to twist some small wires (like solid cat 5 cable wires) together. You can change the capacitance by twisting and untwisting the wires. For the value you specified, two lengths about 3-4 inches long would be a good place to start.
William J. True. Some guy told me the same thing...havent tried it but nice when you dont have one right away
William J. Is this a trade secret? Lol
ivan Reynoso - Yes! Don’t tell anyone! ;-)
What a genuinely nice person, linking his viewers channel
You've done a good job although I can see how some people might get confused.
The trouble is you'd need to visually show things like an induced magnetic field and electrons moving as that field collapses. And if you're going to go into that level of detail it's going to be a lot of work and make for a long episode.
But none the less thanks for a really interesting video.
This was absolutely the funniest goddamn thing I saw in a long time...thank you for this...it came out of nowhere...
In hvac we change out capacitors all the time and ive never heard such a good explanation of the basics of what exactly it does
There should be lightning sound in a second.....
Dude that's called thunder😂😂😂😂😂
This is the best channel I've found d in a while, great job, much wholesome, much knowledge lol.
I'd love to see more circuit calculations. Maybe not in the video, but a link to something like a google document, with documentation on what to change and by how much for varied results. Like what you talked about with the antennae's capacitance vs the variable capacitor. What changes can we make to the variable capacitor, and what will those changes do to the resulting Rf?
where is the link for the to buy list and the circuit? not the original
22:31 That laugh though! Awesome tutorial man! You make it very easy for a beginner to understand
He mentions a parts list? But the link only goes to the original schematic?
GIMME DA MEETA!
Shit wrong channel.
ACvoltage haha so very funny
you watch electro boom?
gimme the booze shit wrong place
FULL BRIDGE RECTIFIER
Thank you for the cut to the thunder storm... Love that thunder
I love your intro song, it reminds me of the music they had in the early educational CD-ROM games! Ah, nostalgia.
Who is up for a volume antenna theamin
Yeah WHY do almost ALL of these DIY theremins lack the volume antenna? >_< How the hell are you supposed to play these if you can basically only play one long note?
@@KRAFTWERK2K6 Its another theremin+freq to voltage converter+voltage controlled amplifier so yeah
@@KRAFTWERK2K6until then I guess you can connect it to a switch of some sort
@@audiodood or a volume knob. That would be the simplest solution.
@@KRAFTWERK2K6 yeah but a key-like switch or something would probably be easier to adjust quickly; maybe connect it to an AREG or something to get a nice fade in/out
17:15 What is the wire He just randomly added to connect both breadboards? I literally think this is the last step I need! I just need to know what plugs into the audio other then the audio out, like is there a seperate audio in? cause as is I get a sound like a partially plugged in amp (so I assume thats what it is)
I understand nothing
I was hoping to make one for myself,but alas my knowledge of electricity escapes me.
There's literally dozens of us. DOZENS!!!
Hey I want to make this for the upcoming science fair but it’s kinda frustrating to jot down all the materials while watching the video and I was wondering if you could give me a list of materials. Please. If you’re able to.
You should make a cathon ray tube
gamerdudes superelite cathode?
cat soup yes, I didn't spell it correctly thank you
CATHODE
Flux capacitor
he doesn't need to make a CRT omg, there are enough of them in the trash...
Any updates on the Theremin? Also, do you have the digital schematic?
....WOW!!!!!! I WANT TO KNOW IF A "THEREMIN" WILL RESPOND TO ANY "METALLIC" OBJECTS, WITHIN PROXIMITY TO IT'S ANTENNA?!!!... COULD THIS BE USED TO "SWEEP" OVER TALL GRASS, TO FIND METAL OBJECTS?!!...
5:00 That Epsilon in the formula is not the dielectric constant, but the permittivity, and that equals with the dielectric constant times the vacuum permittivity which is round about 8,9 * 10^-12 Q/Vm, so according to that you will get a capacity round about 10¹¹ times lower than with your explaination. Really interesting project though👍
Your explanation of inductance and resonant frequency was so helpful and comprehensive
btw for those who dont know, that short clip he played from "over the rain bow" was from Peter Pringle. Look him up , the star trek song he does on the theremin sounds amazing
Also, how about the volume antenna?
Hello, I built this circuit but havent get sound from the antenna. I used J113 instead of 2N5484 and all the other components are identical. I got some strange radio like sound from amplifier but the antenna is not function at all.
0:43 theres literally a hammer on the table
Max Mick I see no hammer
Awesome. That was actually very good playing at the end.
"There should be lightning sounds" *thunder sounds* "oh"
Excellent! Is there a way to make the range of pitches more big in space? So we don't have to do such micromovements to play tones.
Great video, I came to this channel when it had just started and it's wonderful to see it grow and become popular and successful.
Good stuff as always. I was wondering if you could do a whole video on the best old electronics to salvage and how to safely salvage components from them. I am a hobby DIY electric guy, who lives in poverty and doesn't have a dime to spare on parts. It would be helpful when i'm at a goodwill/thriftstore to know what electronic devices have the most useful components and how to remove them without breaking them.
Thanks!
also, are you going to college this fall? and if yes, is it for electrical engineering? i sure hope so cause we need people like you!
Can you please provide more details about the variable capacitor? I've got one, with three terminals, and looks like I'm lost in how I'll put it in the circuit.
2:00 Isn’t that the same principle which is used in a Tesla coil?
Love your videos. We need more TH-camrs like you.
Ahh the ''what will he use to attach the letter to the wall today'' is by far my fav part :P
So... Is there anyway you can do a video explaining what everything is, and what it does? You know, for us who aren't really savvy with most of the components you use. I hate to admit it, but this is definitely me. It would certainly make following your explanations easier. I learn a lot by watching you, but sometimes its a little hard to follow.
P.S. I really like your videos. You have great content!
Hey Scott, I'm sorry to say this sort of stuff requires a lot of reading and practice to understand. That said it is very interesting and rewarding. I would reccommend starting with the learning tools at www.allaboutcircuits.com/ then see if you can get yourself some 2nd hand textbooks to read. One of the most valuable skills you can learn in tomorrows world is learning how to learn, but this wont happen if you ask someone else to teach you. You have to do it on your own. Best of luck.
I've found that simple guides to electronics just don't cut it. They cover the general properties of components but almost always skimp on the important detail, leaving people confused.
But then I guess it's a catch-22 situation. For example do you cover RDSon and non-linear operation or do you just call a mosfet a switch? And how do you make complex topic simple but still fully functional?
The reason for the glossing over is as follows: If someone were to explain more than just what the lesson is focused on, where do they stop? In this field everything is related. You should react the same way. To do this, get a hold of the datasheets of components at hand and study them; know what sort of switch you need your MOSFET to be for a given application (there are many) and study that. The more datasheets you spend time with, the faster you will recognise relevant information.
It is far too easy to waste time thumbing through pages of stuff you don't need to know to do a particular job. Once again, learning how to learn, because nobody else can learn for you. I hope this helps :/
Would love to see one with the volume antenna also would love to see how you made your lab EEVblog made a few videos for labs
Another amazing video: )!!!
Where can I find more detailed explanation about this circuit? Why is it oscillating and why is there a frequencies difference at the output?
btw, in the original circuit he used 1n5 on C13 which is 1mf(according to google) I would like to ask why you use 1.5nf instead. Did you test 1mf and get the best result from 1.5nf ?
Thanks for sharing. Did not find a LINK to your schematic and parts list!!
How do modern units sample a voice?
Yes I want to see how the volume can be controlled.
Wouldn't the phase difference create a signal even without a change in frequency? Or is that just a DC ripple?
Please do put the materials required in the description!
Where can I found a list of materials?
Wow! But hey, you're calling the dampened oscillation in resonant circuit the resonance itself (2:19) but it's a bit more complicated: resonance happens when the frequency of external power suplly is the same as circuit's own resonant frequency, this way circuit can very efficiently store energy while oscillating, so what I'm saying is that resonance is constantly growing (or just constant in some real life systems with losses) amplitude of the signal, not decaying one. Nevertheless, great video, as always!
Could you do a How to make a railgun tutorial pleeaaassseee!!!
ollie wallis has been done many times.
Best you can do probably is like a two stage coil gun anyway, lul
ollie wallis knowing what a railgun is should be enough to know how to build one, if you don't know how to build the actual gun you shouldn't be trying right now, a better question would be about the coils or how to do it without expensive super-caps
Aren’t railguns like... massive?
is it possible to replace the 2N5484 mosfet with a z44 mostet?
so can i use this resonant frequency in some kind of voice voice modulator
sorry if a dumb question it just pop in my mind
Awesome video... I hope to make some for Christmas gifts. Where is the digital layout and parts list?
Is there a way to attach a color changing led light into this so the color corresponds with the pitch?
I have always wanted to build my own theremin! Sooooo coool! I also saw your video on combining a plasma ball and theremin. Way cooler than just the LED lights I was going to settle for. I have an idea for an interactive artwork for an exhibit next January and I wanted to figure out how I could incorporate light and sound. This and the diy plasma globe will be perfect! Now I just have to figure out where to buy/ thrift all the parts I’m going to need and how to set them up inside my sculpture safely. I have a small old guitar amp to use for audio out. I want to make 12 small plasma globes and each one of them playing a different frequency so I can try to tune them to the 12 notes and halftones in an octave. I wonder how the circuitry for this will look and how complex that will make it. Thankfully my partner is an audio engineer and can help me out with some of the build and calculations.
How long is the extra wire that you connected to the antenna?
Could you make this with a motion detector? Like the kind in a an arduino starter kit or would that just complicate it .
Love the content! 👌 :D
BEST CHANNEL EVER
hello, i have spent too long to look for a device that would cut off power supply when not in proximity.
lets say for example, I am riding my bike and I have a device in my pocket, if for some reason my bike and I got separated (stolen) the ignition is cut off. thanks
how do you connect the audio output to a guitar amp, i do not have an amplifying chip to build the other amp like in the video.
thanks for this fella....will be off to build one in a bit.
thanks for sharing :)
Y'know, it's funny.
I was made fun of for most of my life growing up for being right handed, and wearing my watch on my right hand.
I thought nothing of it, of course. After all, I'm right handed, so it would make sense for my watch to be on my right hand.
No.
Apparently my watch was always supposed to be on my left hand so I could "operate" it with my right.
This never made sense to me, and I'm also the outside-of-the-box thinker among my peers, so it's refreshing to see you have a watch on your right hand (the hand you write with).
Also, great tutorial.
I typed all of this under the trance of a DIY Theremin.
7:08 that looks more like a mosfet than a jfet. The symbol looks like it has an insulated gate, but jfets don't have that.
Did not even notice that, but you ate right.
Isolated Gate
The way I learned it is that inductors store energy in a magnetic field, whereas capacitors store it as an electric field.
Sorry for this question, but am I missing the parts list?
Another awesome video , thanks for sharing all this cool stuff with us Keystone Science!
Hey Keystone, do you think you could make a dumbed down tutorial that may fit the parameters of a project I'm really looking forward to starting? I'm going to take a new skateboard and run individual red, blue, and green leds through it. The objective is to hide the arduino, leds, resistors, wires, battery, and other possible components inside of small cavities I'll make in the top of the board. The leds will shine through holes that will display the colors beneath the board as the grip-tape hides all of the electronics and cavities located in the top. I'd love to use the arduino to adjust brightness and colors, alongside using something as thin as a cellphone or watch batteries to power everything (lithium ion for recharging would be absolutely amazing if possible). I'm sure you're beyond experienced enough to conclude a circuit for this and I'd love to explain more if you're interested. It'd be nice to have a video out there that's generalized for this build since I know many people would go nuts over it.
And by dumbed down I don't mean I prefer you to leave math out of it. But I'd love minute explanations behind what's going on along with the math. This whole electronic's thing is like wizardry to me. I plug my computer into the wall and magical pixies make it all happen. (:
Hey, are you still trying to do this project or have you figured it out already? I know it’s a bit late but I might be able to help you with it still.
Yeah, that level of complexity is pretty trivial as things go. The color of the lights is a lot harder than the brightness though. You might need a microcontroller / arduino if you want to pick and choose colors... For the brightness part, I could have built that when I was 10.
I have no idea what you just explained. I really enjoyed listening to it though great vid!
Can i use varicap that came from old fm receiver?
Grat video, very well made and explained! Just waiting for the parts to arrive for my own attempt at building it! Thanks a lot and best wishes! :)
NICE really help full this video is real good to watch u learn so much
you know using a radio as a hammer usual stuff :)
finally iv'e always wanted to make one
Please show us the best way to produce HHO the quickest and with great PSI and without using a electrolyte. so I can use it as a torch to cut and to melt metal. Note I'll be going through thick metal so the length of the flame is important (psi)
Awesome video! Great detail about the actual circuit! Might actually build one of those.
One idea for a video I have is like on how to build a simple Laser Engraver/Cutter out of mostly salvaged parts.
This sounds really good. It just lacks a volume antenna to become a perfectly serviceable instrument.
I'd love to see a version WITH Volume Antenna. :O
mine's don't work....i followed as the video.... can u show how to use connect 1/4 inch connector & pitch antenna and the power battery(9V) . i would be very appreciate if u can send some emails about connection details.....
thanks for the capacitor codes it makes it just a little bit quicker of a build
Most of this went over my head, but I want to learn. Where do you get your components from?
How refreshing. Which engineering field are you most fond of, Keystone?
lol "There should be lighting sound in a second." 18:26 Otherwise known as thunder.
Very enjoyable tutorial.
What is the value for the variable capasitor
I don't understand half the words in your videos, yet I find myself watching them to the end. I should probs get a life...
With in two seconds of this video my eyes went over to the suggested videos
Oh... a Theremin...WOW!! all this time I've been calling it the Star Trek instrument
Could you please make a vacuum tube related project, particularly a vacuum tube tesla coil? I've looked up some tutorials and they are really confusing, but you're really good at explaining things, so i think you would do a good job. :)
How did you learn all of this?
And for those of you out there who are overwhelmed.. Just forget the math. (Just think input and output - what do you need to put in, and what do you want out.) Look at the components. Orient the transistor correctly. Understanding the white breadboard will be clear once you ohm it out, or you can use a battery and a small light bulb. The "plus" and 'minus' run straight down the length of the board like 2 wires. They run on both sides for convenience. The horizontal holes that he mounts the components to are separate horizontal "share" wires that attach to nothing, and must be jumped to get power. You WILL get used to a breadboard and it will become clear with time.
Great Scott! Is the white coat and the goggles a reference to Dr Emmet Brown from Back to the Future? Very cool.
xD yeah, kinnda
would love to see a version with the audio antenna!
My quest for autonomous garden instruments continues.... Unless, of course, somebody can tell me if a solar powered theremin is a: possible and b: possible for me to make :) . I don't need to understand the physics (indeed - I can't) but if somebody could point me at a step by step for a solar powered theremin... Ah. I'd love you.