How to make a Theremin

[@justinlow8192]

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

[@derkommissar4986]

Drawings are gay

[@miroslavzima8856]

NOT THE MATH! Nightmare which will haunt my whole life! x(

[@saradanhoff6539]

Git gud scrubs

[@mariabarros3824]

Me : Oh i don't know english

[@KeystoneScience]

That makes 2 of us

[@webtrekkeruk2487]

I bought a Therrmin for my daughter but she never touches it. ;-)

[@thedigitallabrat]

If you don't need it that's my dream lol

[@usaka23479]

@@thedigitallabrat woooosh

[@K3vinK]

*throws vegetables*

[@mishasofia6091]

send it to me :(

[@miscellaneous1276]

@@mishasofia6091 if you didnt know thermin is not played by touching it.

[@CrYDAM1987]

Ahh the ''what will he use to attach the letter to the wall today'' is by far my fav part :P

[@botnetz]

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.

[@ChiefDork]

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

[@daydream_diddi7970]

Goooood, thanks so much for this video, I also want to build my own theremin and although I'm from germany I understand almost everything 🙏🙏 thanks so much Btw. I identify somewhere over the rainbow 🥰

[@the_hanged_clown]

6:09 mhmm, yeah, right, got it. so I'll be buying my theremin kit then...

[@fundazeynepayguler8177]

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 ?

[@daniellecelone9361]

I would love to see one with a volume antenna! :)

[@WildfoxFabrication]

hey Nate, "lightning sound" is called thunder. isn't that cool?

[@ikemkrueger]

2:00 Isn’t that the same principle which is used in a Tesla coil?

[@carolagomez2514]

Damn... I think I'm in love

[@longinus9961]

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.....

[@erikpratama320]

Can i use varicap that came from old fm receiver?

[@ThomySTB]

You should try plugging it into a guitar amp with distortion :D

[@henryswan1374]

man, i live in a wonderful world. "most people have done this"

[@DerFailer]

at least I noticed it's somewhere over the rainbow

[@LimitlessScience20]

what happened to the tesla coil?

[@matthewstalls831]

i sent a letter a couple weeks ago and i am wondering if you got it, it is in a yellow parcel and it is from vero beach Florida and my name is either Matthew or joseph on it

[@KeystoneScience]

+Matthew Stalls hopefully it's in my mailbox, my mail key was in my car, then I brought my car in for safety inspections and they had to fix something on it, so i won't be able to check for a few days, sorry

[@Krishna-od1vz]

can you make a particle accelarator

[@StudioCluiss]

krishna mohan what's the point

[@IvanEedle]

In making a joke? They're funny, like haha funny.

[@josiahhickman5738]

Jonathan Cluiss The point is making complex technology, avaible to people with less money.

[@sheriif]

krishna mohan I liked this comment assuming u're being sarcastic.... if ur serious you're either 12 years old or dumb, just dumb.

[@kjpmi]

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.

[@michalnemecek3575]

Keystone Science. The only man smart enough to use a small TV as a hammer.

[@sodiumvapor13]

GIMME DA MEETA! Shit wrong channel.

[@stonecold7945]

ACvoltage haha so very funny

[@chinguunbolorsaikhan9598]

you watch electro boom?

[@hyakinthos_0902]

gimme the booze shit wrong place

[@ridwanandrianou209]

FULL BRIDGE RECTIFIER

[@Willam_J]

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!

[@KeystoneScience]

thank you :)

[@redvulps]

damn, I'll try to make this later, and I would love to see a more complete one, with the volume antenna

[@Socks3657]

Can you please give me the material list to make this??? I cant find it on the official page

[@AberdolphLinklr]

There should be lightning sound in a second..... Dude that's called thunder😂😂😂😂😂

[@hakrj12]

I understand nothing

[@covjekdusa9335]

I was hoping to make one for myself,but alas my knowledge of electricity escapes me.

[@KRAFTWERK2K6]

There's literally dozens of us. DOZENS!!!

[@DarrenDIY]

Who is up for a volume antenna theamin

[@KRAFTWERK2K6]

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?

[@audiodood]

@@KRAFTWERK2K6 Its another theremin+freq to voltage converter+voltage controlled amplifier so yeah

[@audiodood]

@@KRAFTWERK2K6until then I guess you can connect it to a switch of some sort

[@KRAFTWERK2K6]

@@audiodood or a volume knob. That would be the simplest solution.

[@audiodood]

@@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

[@neo4704]

Mom: What did you rent from the band this year, honey? Me: A THERAMIN.

[@blasterak101]

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?

[@kenanderson2002]

How can you only have 138k subscribers when people like pewdiepie have 57M? Ugh. Nothing against him of course.

[@saradanhoff6539]

Because this is just jibberish to most youtubers.

[@shararzaid420]

The reflection of the bell curve corresponding to reality.

[@K3vinK]

PDP is annoying.

[@ItzChris-ql4zb]

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!

[@KeystoneScience]

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! :)

[@ItzChris-ql4zb]

@@KeystoneScience Alright, you're welcome :) And keep the awesome projects coming, I love your channel!

[@marvinmatter1501]

@@KeystoneScience the list seems to have gone missing again :( is there any chance you could but back the list and diagram in the description?

[@neuro518]

Every electronics video should have a thunder storm. Keeps us grounded.

[@loc4725]

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.

[@Willam_J]

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.

[@ivanreynoso3849]

William J. True. Some guy told me the same thing...havent tried it but nice when you dont have one right away

[@ivanreynoso3849]

William J. Is this a trade secret? Lol

[@Willam_J]

ivan Reynoso - Yes! Don’t tell anyone! ;-)

[@guloguloguy]

....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?!!...

[@Katiethekitten]

"There should be lightning sounds" *thunder sounds* "oh"

[@petresilegov2581]

You should make a cathon ray tube

[@goombie8962]

gamerdudes superelite cathode?

[@petresilegov2581]

cat soup yes, I didn't spell it correctly thank you

[@KingNothing22]

CATHODE

[@themeez1000]

Flux capacitor

[@melinda6301]

he doesn't need to make a CRT omg, there are enough of them in the trash...

[@chaosreigns7386]

This was absolutely the funniest goddamn thing I saw in a long time...thank you for this...it came out of nowhere...

[@dannyaguilar4870]

how do you even come up with this things liked and subscribed 👍👍👍👍👍👍👍👍👍

[@Arinx7]

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?

[@maxmick1376]

0:43 theres literally a hammer on the table

[@erichughes3987]

Max Mick I see no hammer

[@AuditoreMs]

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.

[@AuditoreMs]

P.S. I really like your videos. You have great content!

[@IvanEedle]

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.

[@loc4725]

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?

[@IvanEedle]

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 :/

[@Jmtech-we9cd]

Another amazing video: )!!!

[@KRAFTWERK2K6]

I'd love to see a version WITH Volume Antenna. :O

[@DarrenDIY]

you know using a radio as a hammer usual stuff :) finally iv'e always wanted to make one

[@omsingharjit]

It would bE better to use opAmp as active substraction instead of two circuit Passively it will load the circuit

[@thenewestaddition173]

He mentions a parts list? But the link only goes to the original schematic?

[@LegalSkateboarding]

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.

[@LegalSkateboarding]

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. (:

[@mattr4198]

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.

[@darinhitchings7104]

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.

[@jamespeterson3139]

NICE really help full this video is real good to watch u learn so much

[@AndrásErklärts]

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👍

[@evilchickenman6446]

Love the content! 👌 :D

[@jorieuw]

where is the link for the to buy list and the circuit? not the original

[@baqcasanke]

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!

[@alondraramirez4668]

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.

[@ow7224]

Could you do a How to make a railgun tutorial pleeaaassseee!!!

[@annelisemeier283]

ollie wallis has been done many times. Best you can do probably is like a two stage coil gun anyway, lul

[@youngbloodbear9662]

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

[@13vex]

Aren’t railguns like... massive?

[@johnissa7255]

How are you so smart ? And how old are you ?

[@annelisemeier283]

John Issa how does any of this qualify him as smart ?

[@GunkNasty]

Annelise Meier really? Did you watch the video? If that isn't smart than I don't know what is.

[@luisgonzalez5482]

Annelise Meier It doesn't matter, but it would be pretty impressive having someone pretty young knowing this much about this stuff.

[@brandonisbored8161]

His understanding in the formulas and the process of what he is doing is what makes him smart at least in the area of his work, people need to take a look around and realize that in some cases you may be smarter than someone at one task but then be straight clueless about another task that the other person has perfected.

[@saradanhoff6539]

@@brandonisbored8161 Ignorant and stupid are two very different matters.

[@bloodswarms]

....with a volume antenna. NOW YOU CAN RUN AND TELL THAT.

[@MrUnkownGuyAC]

I love your intro song, it reminds me of the music they had in the early educational CD-ROM games! Ah, nostalgia.

[@richardalcaraz1196]

does anyone actually know what the fuck he talm bout

[@Joey-Jett]

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.

[@davidprock904]

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)

[@VladimirRadiomay]

The author of this scheme is Thierry. And here it works much worse than the author’s. Bad repetition.

[@AnimilesYT]

0:39 Science can indeed do that. And we're on the point where we have to decide quickly which one it'll be. Don't take my word for it if you don't believe it. Do your own research. Change on a global scale takes years, and we're already seeing hundreds of billions of dollars in damages already and many lose their lives. Please, do the research if you don't know how scary it is. Ignoring it will only make your own future more insecure. Don't do it for me, do it for yourself and everyone you love. Oil gave us engines. It gave us easy and cheap* transportation and it was a huge boost to the western economy. It gave us plastic as well which made prototyping fast and easy which boosted our productivity. I can watch this video because oil changed our way of living. It even gave us high quality healthcare and it prevents us from getting infected. It also gave us so many amazing foods. But burning oil (mainly) produces CO2 which is a greenhouse gas. It is warming up our planet which warms up our oceans. Warm oceans make storms bigger and water also expands as it gets warm which causes sea levels to rise. Bigger storms carry more power and more water, which will make floods occur way more often. But a warmer climate also increases the strength of heatwaves and droughts. It is a serious threat to our food and water supply in the summer. And this is only the tip of the (melting) ice berg. Reading (peer reviewed) studies almost makes me depressed. I want to cut it all off and forget about it. But that doesn't make it go away. It only makes it worse. We need to find new ways to do things. We have to stop using oil as soon as possible. Since you are watching this video I assume that you like making things with science. You can choose what you're going to do with your life. Whatever you are doing or going to do, take our world into account. Or if you don't care about others, take your own world into account. *Cheap transportation as long as we're not taking the consequences into account.

[@petevenuti7355]

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?

[@batintheattic7293]

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.

[@jackallen6261]

I have a dozen tube guitar amps laying around. I need to sell a few, need a few more spares? lol Get rid of those pesky transistors (twisted transistors, lol) and switch to tubes...That might be pretty cool...Real Theremins glow in the dark, lol.

[@michaelmitchell8218]

I don’t know yours sounded more saddening so don’t knock yourself on that lol. Like your channel wish more kids would watch this stuff because great to get into and also it’s the way things are going today. Next time I think you should play The Simpson’s tune lol.

[@fundazeynepayguler8177]

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.

[@MarinaUganda]

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.

[@tri-pawedpittyplays9177]

I'm getting a ton of feed back in the audio out but the destructive interference does produce an audible frequency... any ideas? My speakers are from a computer so they have their own external power source..

[@tedvanmatje]

thanks for this fella....will be off to build one in a bit. thanks for sharing :)

[@ironsandhammers359]

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

[@ElegantprojectsCo]

You speak so fast I don’t understand it. Are you on Ridelon? So, it’s a capacitor does this mean you can go 88 miles an hour with this thing?

[@MarinaUganda]

Also, how about the volume antenna?

[@vexguine]

I Tried and tried 3 times following the step by step. Don't work. :( Can you help please?

[@azazjabari]

These are some good things ur doing I need to that if can make a medium size like about 6 into 4 feet machine which can converts different eggs into chicks n ya in affordable range If can plz tell me about it .

[@kassiedreaneai7459]

I did not know a person could talk that fast for so long and not get tongue tied every few seconds. You lost me after the word maths, but it was a good presentation I believe. It worked anyway.

[@biohazard6425]

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...

[@TheMilanMovies]

Awesome but can you please stop pronouncing the letters ‘T’ and ‘S’ so loud and long... it’s so annoying 😂

[@MyBigThing2010]

Anyone have and inductive spike and blow a cap during the math?

[@madamerotten]

Why are you showing JFETs as incorrectly-drawn MOSFETs in the schematic?

[@charleswolf5205]

Any updates on the Theremin? Also, do you have the digital schematic?

[@yashsawdatkar8558]

we are fucked because you pal our project aint working

[@Tubuletastic]

Is there a way to make one with four separately tuned antennas? You probably can psychically know why I ask.

[@themeez1000]

Hey bud, wondering how you were? You haven't posted in awhile. Trying to see if you are ok.

[@Jah_Rastafari_ORIG]

I hope you understand the awesome power of that Sharpie; it can change the course of a hurricane....true story...

[@DragonworksProductions]

It only seems appropriate to make a device that makes creepy alien movie noises during a thunder storm😀

[@kd1s]

The way I learned it is that inductors store energy in a magnetic field, whereas capacitors store it as an electric field.

[@LuisTorres-qz5kr]

Thanks for sharing. Did not find a LINK to your schematic and parts list!!

[@Justice094]

I'm over here like. Wtf is this? It has an antenna, perhaps I could use it to mess with people so I shall investigate.

[@lordsebastian4136]

Great, I built this... but WTF is a Theremin and what am I supposed to do with it? lol

[@Dubswitcher]

Sounds like the duplicates from Oxygen Not Included

[@yz250ftony]

Ok i need help here. I built this with the schematic provided. All the same values down to the 2n5484 JFETs. I originally used 1 milli-henry inductors (schematic says 1mH), later replaced them with 1 micro-henry inductors. The math made more sense for 1 micros. I'm getting 0 oscillation shown on my scope anywhere, it's just passing DC. Are the FETs bad? 6vdc in, 9v battery with an lm7806. All new caps and inductors, 1% tolerance resistors, very short connections between components. I'll upload a video If I can get it going.

[@darinhitchings7104]

What was the net result?

[@yz250ftony]

@@darinhitchings7104 didn't work. I think the components were too close together and interfering. I never got it working.

[@mariacristinamagtibay9918]

The solution to no volume antena is jus to add a button that stops the curcuit muting it completely and you have to hold the button to complete the circuit andlet it create sound

[@PrajjalakChattopadhyay]

Where is ε0 in the capacitor formula? ε = εr.ε0 ... you just used the εr (relative permittivity) in the formula. You have to use absolute permittivity (ε) which is product of absolute permittivity of free space (ε0) and the relative permittivity (εr).

[@annelisemeier283]

Prajjalak Chattopadhyay finally somebody who noticed

[@6alecapristrudel]

Those j-fets look pretty funky too

[@Nicksperiments]

I think he was trying to use C=(ε0*A)/d but thought ε0 was the dielectric constant for air when really K=C/C0 is the dielectric constant and ε0 is the constant 8.85e-12 C^2/(N*m^2)

[@georgegates526]

Keystone Science: I'm glad there are people like you, who still honor discrete components! Thank you!

[@fellpower]

That isnt a teremin...u have no volume system....bad work...

[@danames5780]

I gave u a thumbs up,but what is a theremin?

[@youngbloodbear9662]

Quit overexplaining the basic shit ive understood capacitance since 6th grade dude...