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Make your own Simple Theremin
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- Опубликовано: 11 ноя 2017
- Support me for more videos: / greatscott
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More project information (schematic, pictures,....) on Instructables: www.instructab...
Theremin website shown in the video: www.strangeappa...
Parts list (affiliate links, incomplete, see Instructables for more):
Aliexpress:
1x CD4093 NAND IC: s.click.aliexp...
1x MCP602 OpAmp: s.click.aliexp...
2x 100pF, 1x 1nF Capacitor: s.click.aliexp...
1x 4.7µF Capacitor: s.click.aliexp...
6x 10k, 1x 5.1k, 1x6.8k Resistor: s.click.aliexp...
2x 10k Potentiometer: s.click.aliexp...
1x Antenna: s.click.aliexp...
1x Power Jack: s.click.aliexp...
1x Audio Jack: s.click.aliexp...
Ebay:
1x CD4093 NAND IC: rover.ebay.com/...
1x MCP602 OpAmp: rover.ebay.com/...
2x 100pF, 1x 1nF Capacitor: rover.ebay.com/...
1x 4.7µF Capacitor: rover.ebay.com/...
6x 10k, 1x 5.1k, 1x6.8k Resistor:
2x 10k Potentiometer: rover.ebay.com/...
1x Antenna: rover.ebay.com/...
1x Power Jack: rover.ebay.com/...
1x Audio Jack: rover.ebay.com/...
1x Housing: rover.ebay.com/...
In this project I will show you how the electronic instrument Theremin works and how we can create a simple version of it with the help of 2 ICs and only a few complementary components. Along the way we will talk about oscillator types, body capacitance and much more. So let's get started!
Music:
2011 Lookalike by Bartlebeats
Ecstatic Wave, Jens Kiilstofte
machinimasound...
That sounds like I'm at the dentist's office.
Wow. Can't believe how much circuitry I've forgotten since I last had to build a circuit! 33 years ago this would have seemed so simple to me, now...
1:30 Will you teach us how to draw such realistic hands?
It is easy. Never listen during art class in school. That is at least how I draw them.
I actually prefer the one at 1:27
This. is. art! :D
As realistic are his hands, is realistic is theremin.
@@greatscottlab LMAO
I was searching for a easy circuit of theremin for my whole life finally I got it. thank you very much great scott. I am building the prototype now and its working perfectly
Those drawn hands alone are worth an upvote.
These videos are what keep me from falling off the edge.
as a professional theremin player you just changed the way that i look to theremin not because of the complicated structure .no no no no. because of your professional playing :)
Can you play I just wasn't made for these times? I just love how they made the theremin sound like a voice
Doesn't sound anything like a theramin, you need an even sine wave for a theramin, tuned to a set frequency (such as A, 440Hz) - then when you move your hand, that frequency changes, creating the notes
a square wave just sequeels...
"simple" was his main goal
Yes, but it was "Simple Theremin". Maybe he built something simple, but that is *not* a theremin. Sorry for farting in the bath, but that's a fail.
Exactly, this is a simple noise creator, not a simple Theremin.
Totally agree. As a "distance" detector maybe it work but isn't a theremin. Too much noise and high freq.
The LP filter needs set much lower, like 1-2KHz max to be musical, and subtract the unwanted harmonics of the square waves.
Theremins are fun. Years ago I built one after a schematic from the net that utilised a CD4069 hex inverter and a CD4046 phase-locked loop. I had no clue how, but actually worked, although somewhat unstable. The frequency always drifted higher and it became unusable after a couple of minutes.
I think that the problem is mainly with the schematics, not with your playing skills.
Such circuits REALLY have to be well-shielded, elsewise they output too much noise. I think, that is the reason why your theremin sounds like squeaking.
Second, how does the differential opamp even work in such configurations? Subtracting two frequencies never gives a frequency difference unless some distortion occur, is it connected in a comparator mode? If not, try increasing the amplification.
I've made a project that was about hearing inaudible ultrasonic frequencies - basically, a frequency mixer of a heterodyne and a mic, which is very similar to this situation. During my experiments I've found that the cheapest and simplest, yet good-sounding solution is to use an analog switch like 4053 to switch between the first signal and the first signal inverted at a frequency equal to the second signal frequency. Maybe you should try this configuration and replace on of your oscillators with a real colpitts oscillator. I can give you the schematics for my ultrasonic sound project if you want to.
can you share thos schematics comrade?
The nicest hand drawn schematics and blueprints on RUclips. But that drawing of a hand......
I'm a recent subscriber (some of your arduino videos helped me a ton), and just realized this is the same GreatScott as the one on the flier I have hung on my wall for your HackRF One. It's been a goal of mine to own one ever since seeing it at Denver Maker Faire last month. Thank you for being amazing!
You will get better sound if the output wave is a sine wave (with minimal noise) and you calibrate the max and min distance to 18khz to 50hz. In that way you can get a better sound response. Try it, really play theremin isn't hard. All you need is practice the distance.
I graduated the last year so now I m electronic engineer, and I m in the same age as you but I m still learning from you and wait for your videos every week , keep going my friend (y)
Thanks for the feedback. I try my best.
send it to rob scallion, he can make it sound good... right?
CJLOLZ I second that 😂😂😂
he can play anything, so......
I would go for andrew huang
I would check out Angelo Moore from the band fishbone
Wait a minute, Great Scott! is promoting the simple schematic???
*notices person is a fellow southpaw and spends the entire video in a fervor of happiness about this.*
What if you use the triangle-ish waves from the capacitors instead(they have lower harmonics), by subtracting them with an in-amp? Maybe it'll sound nicer since it's easier to filter the harmonics
I just realized you're left-handed like me, double thumbs up!!
so if you're interested in music, creating your own midi instrument/controller may be a project for another video
I put it on my to do list
+GreatScott! You could make a 3D printed piano keyboard, or make a capacitive touch keyboard =)
I made a capacitive touch midi controller a while back that I hook up to bananas, cucumbers and apples and a Roland synth. Its pretty popular at our local maker fest.
It's also fun to make those with conductive ink on a piece of paper :)
Mathieu Clement Or pencil marks
I'm glad to see that I'm not the only genius who plays the guitar in my style. ;)
Really loving this! Been looking around for small sized theremins in order to build one into my electric guitar, and this might do the trick!
Lol same
What do I need to learn in order to know what he's talking about?
Logic gates.
I think you might find it worth revisiting the XOR gate which will mix the frequencies, unlike the op-amp which is mixing the voltages.
I agree. In therory you need an korrelation circuit between fixed and variable frequencies. XOR is an simple "digital" approximation to this. Linear adding voltages does this not. But if the amplitudes are to high and nonlinear effects occur, it seems to work.
@@joergfoerster8043 someone probably told him he should use an SA602 Double-balanced mixer, but he substituted the OpAmp 🙂
@@Chris-ZL Yes, in HF-technik an mixer is in my option an multiplier - in audio-technik a mixer is an adder. Or, shoud i say: Even in an audio-technik-mixer each input-signal is multiplied with their volume-control and then the signals are added.
That would actually make a great mini proximity detector. Make an electronic controlled mouse-trap or a snack-snatching alarm. If anyone tries to grab a snack, it triggers a siren horn. Attach it to a door handle and you have an anti-tamper alarm detector. Put it in your wall, where the doorbell should be, and you have a 100% waterproof, touchless door chime. Add it to a robot and the robot can sense when you are about to grab it. Add three and the robot can detect you and run the other direction, where is doesn't sense you. :)
i love this channel
As an electrical engineering: This is fascinating, remarkable and inspiring.
As a musician: This is an excellent instrument for annoying people!!!!
I believe you got this idea from Sheldon Cooper right?
Well, he can definitely play it better than me.
I don't get why this guy haven't reach 1m
"Not complicated enough yet?"
me: pls. stop
Nice!
Just a question: why are you using NAND gates with an input pulled to HI instead of simple NOT? Wouldn't you get the same result?
@@__MINT_ The easiest way would be to use a ring oscillator.
@@__MINT_ You could, you just need an uneven number of gates.
I love your handwriting.
Everything is so well written and drawn, damn
3 minutes ago, but 32 comments! Wow! Great job!
I was waiting for it
*closes video tab*
*opens ebay tab*
*types in ''cheap theremin''
i tried guys.... i tried lol
Very good tutorial.....I won't need a mixer, just going to feed it directly to the power amp and play some music for my dog.
I LOVE THE HANDS YOU DREW! MAKE A DRAWING FULL OF HANDS
i love your handwriting!
Hi greats Scott could you make a synthesizer using some oscillater like the 556? That would be awesome!
It is on my to do list
GreatScott! Or you could make a quad oscillater circuit using the 4093
There's a great 3 part RUclips tutorial on how to do a full on synth starting here
ruclips.net/video/FaoJaLmZaL4/видео.html
I didn't make these videos I just think it's a great tutorial
GreatScott! Atari Punk Console? So classic.
Wow, perfect😍😍 brasilian here
OMG those hands symbol made my day !!
In my amazement that they built a Low Frequency mixer in the circuit, so i went in the theremin site and found out what it was, just a capacitor. Obviously, for a crude experiment no one wanted to design a mixer with high specs.
Wow, that's really nice! :D Fantastic work, man!
really nice work man!
can you make something like a led suit like a costume using led strips
What about electric kalimba with set frequencies for each note? using the same principals as the theremin.
Why did you use ex nor gate for the oscillator when you have one input connected to vcc you could have just used a not gate.
Just idea, plug output into ATmega32u4 a make cool MIDI instrument
Never worked with MIDI before. Might have to do a little research.
CZ/SK?
greatscott asi nemec
ja nemyslím greatscotta ale teba xD
Or just use an Arduino with Atmega16u2 built-in and flash de LUFA midi firmware. Cheap and simple.
Give that to a person that knows how to sign language
now i can prank my friends. can't wait
Like Jimmy Page. He played it in Led Zeppelin.
Dwayne Wladyka Page fucking sucked playing the theremin
Do you know exactly what a attenuator is? because ive heard so many different versions and uses abd its getting abit confusing to me
4:29 could you use the nand logic symbol there instead of the triangle so it doesn't look like an op amp or buffer?
send this to andew huang. please, Im sure he'll make an awesome music out of this
lol, true, the only problem is that shipping this to space is probably going to be kinda expensive
Could you make a RF audio transmitter
7:49 Why not Hot glue?
I had to use two component adhesive for the antenna anyway. So I just used it for all the parts.
Because hot glue does not sick well to metal.
A tip for hot gluers. Use a heat gun to pre-warm all the surfaces. Then the hot glue is less prone to making spider webs and the glue will flow onto the surfaces. The reason it does not stick to metal easily is the rapid cooling caused by the cold metal.
What is that material to glue?
The best would be to do 2 levels for this kind of projects, an easy circuit and a more advance one, but it will take a lot longer to make.
Btw nice video, as always
+Frost Might be a good idea. I put a more complicated, better sounding theremin on my to do list.
It's been a long time since high-school physics, but couldn't you take the final audible square wave and make a sine wave from it, with an RC circuit? Maybe be a bit more musical... (yes, I will be trying this myself)
Great Scott! You maybe could add an lm386 amp to increase the output volume! 📡🎶
never clicked so fast in my life
do u also play N-game that is how i got quick reflex
Black turbine nope
build in an hour, that means it'll only take me 1 or 2 weeks!
Using a Stabilo pen right now, I have trust in you!
Prety so cool!
it sounds too high. is there a change that would lower the pitch an octave or two. it sounds mostly abover 10khz... it might sound nicer in the 500hz to 8khz range... could a different component somewhere change that?
Great Scott, he's a southpaw
This is a very nice circuit tutorial, but the net result makes this theremin hardly worth the trouble. If you want to make a simple pitch theremin using CMOS ICs, then I suggest the "101 Minimum Theremin" or the "102 Minimum Theremin," which you can Google.
this is more "how not to build a theremin".
I understand the concept of "keeping it simple". But if the functionally is reduced to beeing totally useless, then it's simply futile to spend any components (or time) on it. Apart from the soldering practise.
you could easily get a better timbre for your theremin by lowering the cutoff frequency to get rid of those high harmonics created by the square wave. Maybe put a variable resistor instead of a simple resistor in your low pass filter ?
Fantastic
Useless Fact:
The Main Theme of "Midsomer Murders" ("Inspector Barnaby" for the German Audience) is played on a Theremin.
Hi ..I enjoyed it .I'll surely going to try this
wowo another great video
Congratzzzz 666k subz
You know the ZOOM H1 also has an input audio port? This way you can directly record the audio signal. Afterwards you can always amplify the recording with Audacity.
With all the square wave action going on, this would probably sound better through a low-pass filter with a much lower frequency of cutoff... maybe make a simple variable LP filter, with a range from like 100Hz to 2KHz.... Cheers!
I thought the same thing as I saw those square waves
You are genious.
How can I smooth out a square signal to get a smooth sound, also, how can I lower the tone so It ca be a bass theremin???
That's exactly what I was looking for. A bit complicated though but still awesome
Good work man
Keep going 😘😙😙
Nearby every Video begins with "When it comes..."
:D
Can you please try and build an FM transmitter and an FM reciever for your DIY or Buy series?
Is there a simple circuit for making oscillation. just like those found in toy fish? thanks
hi there, in the schematics it calls for 1 10k potentiometer and 1 100k potentiometer not 2 10k's?
it's not a Moog theremin but it will do
Good Job boss !!
Is it possible to have two antennas perpendicular to each other tracking x and y position of one hand?
you hit those guitar strings harder than 200kvolt would
great scoot please will u make a video on how to make a 50 watt amplifier
I have commented on your videos before asking about this, i want to make a vintage sounding 30 watt guitar tube amp with a clean and dirty channel, ive seen people make videos before where they assemble the pre amp and the power amp but they dont go into detail like you do, they just give you the schematic and schematics with vacuum tubes are too hard for me to understand, can you make a video on it?
This is cool and all but I'm worried people are going to look up Theremin and find this and assume they all sound annoying.
Any chance we could get a more.... realistic Theremin build?
how does it sound with a much lower tone (e.g. 200-1000 Hz)?
How difficult would it be to replace the pitch potentiometer with another antenna as found on a regular theremin?
Awesome video as always😉
Het great scott! Please make a guitar pickup... or cigar box guitar..
Hey scott! I was wondering what electronic component shelf you were using to store you'r small components in.
It's missing lower frequencies - should have the tone and range of that theremin sound as you'd hear on the Beach Boys "Good Vibrations" recording
What is that grey and orange thing he uses to split the wire to multiple outputs called? AliExpress links?
i came looking for answers and i leave with questions, thanks.
In one of your videos you showed how to make. A light screen from Laptop screen so can you tell us how to make a portable display without using any other display driver and making driver from laptop
Good one !
For this setup, could I use a battery instead of a power supply??? I think you are using 5V, what would happen if I put a battery with less voltage or a battery with a higher voltage??? Would still work? Please help