How to make a VU meter

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  • Опубликовано: 21 дек 2024
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Комментарии • 152

  • @jan_harald
    @jan_harald 6 лет назад +27

    VU meter is *NOT a spectrum analyzer*
    it's literally "volume unit meter" which measures just volume, nothing else
    other than that, great one!

    • @KeystoneScience
      @KeystoneScience  6 лет назад +7

      But it’s a volume spectrum analyzer in a sense ;)

    • @jan_harald
      @jan_harald 6 лет назад +3

      well, technically yes...
      maybe rename the video to "How to make a volume spectrum analyzer" then?
      :]

  • @billytisme
    @billytisme 6 лет назад +25

    How about a Geiger counter? If you haven’t already

  • @bhu1334
    @bhu1334 6 лет назад +25

    A nuclear fusion reactor with Cody! Boy it's gonna be a hell of a ride

    • @kensrocketry2785
      @kensrocketry2785 6 лет назад +1

      BHU1 LORD see BennBuilds

    • @sacation6057
      @sacation6057 6 лет назад

      Yeah amazing, didn't know cody was doing it with keystone, but amazing! My 2 favourite youtubers together on an awesome project, HYPED!

  •  6 лет назад +24

    You should make a buck/boost converter next. Like if you agree

  • @crownofall
    @crownofall 6 лет назад +1

    Welcome back.
    I like these electric vids. I need to learn these things. Been going to like forever, but focus always kept me in other areas

  • @jstuyfzand5467
    @jstuyfzand5467 6 лет назад +30

    Make a shaving apparatus to get that thing off your upper lip :)

    • @KeystoneScience
      @KeystoneScience  6 лет назад +8

      Hahaha xD

    • @jan_harald
      @jan_harald 6 лет назад +3

      it's called a "stache that needs a lot of time to get anywwhere"

    • @Felisargyle
      @Felisargyle 6 лет назад +5

      No you don’t make that you just THIS VIDEO IS SPONSORED BY DOLLAR SHAVE CLUB

  • @TannerTech
    @TannerTech 6 лет назад +27

    Wow! That breadboard had sure seen better days. It is pretty burned and melted on the power rails. Haha!

    • @jan_harald
      @jan_harald 6 лет назад +2

      he probably hooked a tesla coil up to it ;)

    • @GnuReligion
      @GnuReligion 6 лет назад +2

      Yes, many of us here have abused a breadboard to hold pins straight while soldering on a perfboard. Can't get get it too hot! The twisted and mangled male DuPont jumpers were also funny. Just can't get them in the holes sometimes!

    • @kakeergodt4609
      @kakeergodt4609 6 лет назад

      I destroyed my one to

  • @Nate.mp4
    @Nate.mp4 6 лет назад +7

    I love how you do such complicated and lengthy things, yet you stop to remind everyone the polarity of an LED xD. If we aren't going to understand something, that won't be it.

  • @braedanricketts5139
    @braedanricketts5139 6 лет назад +5

    I die a little inside whenever i hear someone say "PCB board".

    • @KeystoneScience
      @KeystoneScience  6 лет назад +1

      Fair point

    • @SianaGearz
      @SianaGearz 6 лет назад

      Here's another one for you: LCD display.
      Oh that's not enough? How about... USB bus!
      Still here? OK. SMPS power supply!

  • @rileydowns6005
    @rileydowns6005 6 лет назад

    excited for the fusion video with cody. always have thought fusion was the ultimate goal for making things at home. I've actually looked into building a smaller reactor with a diffusion pump instead of a turbo pump and around a 3.5-6" diameter spherical chamber, just never have had the money yet.

  • @abdoolzaidtoorabally4284
    @abdoolzaidtoorabally4284 6 лет назад

    I remember when I was in high school I designed a vu meter with zenners, looks like fun to try your circuit.

  • @SquidSunday
    @SquidSunday 6 лет назад +6

    The next video better be out before Thursday I have a science project and I need to build a nuclear reactor just kidding I need to build a flashlight

    • @SuperJhon360
      @SuperJhon360 6 лет назад +1

      Squid Sunday just buy an led and a watch battery boom and when the teacher says that its lazy point out that you made a working light out of 2 components that most people have while everyone else needed more components and that they used components that they had to go out of their way to obtain or to order. so is it lazy or is it genius.

    • @crownofall
      @crownofall 6 лет назад +1

      josh greg
      If you're at home, it's genius.
      if you're at school it's lazy.
      But that's the difference between School in the real world isn't it. Lol

  • @lucasbeveridge640
    @lucasbeveridge640 6 лет назад

    I'm curious about what sort of neutron detector you bought. I'm a grad student in nuclear engineering, and I know those tubes are sometimes not great, are really expensive, or are really *really* expensive (like the 3He ones). Also, if it's a BF3 tube, be careful. They can corrode from the inside and break open unexpectedly, especially if it's old. A couple friends of mine got to spend a day at the hospital because a BF3 tube broke open when they were disconnecting the coax. The building had to be evacuated for a few hours also.

  • @SnareX
    @SnareX 6 лет назад +1

    Can't wait for the Cody's Lab collab!

  • @Ghost572
    @Ghost572 6 лет назад

    I've just recently seen this JLC PCB company, seems really good to get more involved with PCB and get a professional finish.

  • @emporertorvus4475
    @emporertorvus4475 6 лет назад

    Do you have any idea how to make a passive analog audio delay circuit? If so please show me where I find that information.

  • @Nate.mp4
    @Nate.mp4 6 лет назад +7

    You went from a 12 year old boy to 1 30 year old man... how long have you been gone?!

  • @mr.amp0076
    @mr.amp0076 6 лет назад +2

    I have an idea... Can you make dc to dc isolated power converter.... Did you know about ground looping effect....if any audio amplifier connect with a same supply of Audio source their would be unknown blipping sound.... So make something that isolates power supply... Very fun project...

  • @Baigle1
    @Baigle1 6 лет назад

    Watch out for that fusion reactor. Your shielding material may sponge up, flake apart, and grow in size while gaining some radioactivity.

  • @JeanRomainRoy
    @JeanRomainRoy 6 лет назад

    Keystone, just a heads up about your fusion project. Id say the hardest aspect of making one is sustaining the very low vacuum. So invest from the start in a good pump.

  • @francishosey551
    @francishosey551 6 лет назад

    Hey I had questions about making my own wind turbine that would make DC power. How shld I orientate the magnets and the wires!?!?

  • @Zman2024
    @Zman2024 6 лет назад

    Keystone Science is the Tesla coil circuit a spark gap type or other? If it's a sgtc what are you going to use as the power supply?
    Plz respond. Hoping to make my own some day

  • @MrSoulBack
    @MrSoulBack 6 лет назад

    Does the lm324 have a protection against negative voltage? You powered it with +3V so it should in theory break after some time because it reaches an input signal lower than 0V

  • @Justin-eb4vy
    @Justin-eb4vy 6 лет назад

    How did you get into making all these electronic project, and how can I get into doing it?

  • @ericsettineri6315
    @ericsettineri6315 6 лет назад

    Would I be able to use a electrit condenser mic on this, would it change the circuit?

  • @dhivan
    @dhivan 6 лет назад

    Favourite RUclips channel ever!

  • @kalyangautam7345
    @kalyangautam7345 4 года назад

    Is there any idea for dot style not graph style

  • @gardenguy357
    @gardenguy357 6 лет назад

    2:30 waitwaitwait
    you two are making a fusor reactor?

  • @keelerdr
    @keelerdr 6 лет назад

    YES! Thanks for this video, love it

  • @bobborogers1689
    @bobborogers1689 6 лет назад

    Instead of using 2 LM324s, couldn’t you use just one LM3914? Wouldn’t this be more cost effective and add more perks (like brightness control)?

  • @filmlee5572
    @filmlee5572 6 лет назад

    I think you should make a static electricity detector, its quite easy to make and pretty fun.

  • @ScienceByMike
    @ScienceByMike 6 лет назад

    What efficiency are you and Cody hoping to get on the fission reactor

  • @Centuries_of_Nope
    @Centuries_of_Nope 6 лет назад

    I remember trying to make some with LM3915 in early college. With the aux port, it came out pretty good, but it was early college. Shit was as fragile as an apple product.

  • @masonp1314
    @masonp1314 6 лет назад

    Could they make a referral link, so you get something as well whenever people buy things?

  • @ElectricPointOfficial
    @ElectricPointOfficial 6 лет назад

    Nice !

  • @SuperJhon360
    @SuperJhon360 6 лет назад

    Doesn't grey PVC have carbon in it if so your not winding a secondary your winding a resistor and it will heat up (never use black PVC neither).

  • @reggiep75
    @reggiep75 6 лет назад

    6:09 - BREADBOARD DAMAGE!!
    The mark of a true conflicted madman.

  • @godashin1830
    @godashin1830 6 лет назад

    Can you make a flyback driver from a transistor and a resistor only...

  • @jasonbaker541
    @jasonbaker541 6 лет назад +6

    Mustache is coming in nicely sir!

  • @themasterofthings8020
    @themasterofthings8020 6 лет назад

    please make a video showing us how to make the circuit on a software

  • @greensocket3583
    @greensocket3583 6 лет назад

    Pls make the video for making the PCB inn a software

  • @krzysztofsoja5301
    @krzysztofsoja5301 6 лет назад

    Thanks for the video. Much easier way to make VU meter is to use ladder of diodes (type/amout depends on input voltage and resolution) and a bunch of transitors. Of course your design is much more flexible, and overall more professional.

  • @vedantmomaya1533
    @vedantmomaya1533 6 лет назад

    Wow neutron detector that's something new!!! Gr8 bro

  • @huibvanderveur3015
    @huibvanderveur3015 6 лет назад

    Haha, really looking like a seriously looking professor with that mustache

  • @brianclemensen3313
    @brianclemensen3313 6 лет назад

    Love the melted hole in the breadboard at 5:32 😂

  • @rodrigo_dm
    @rodrigo_dm 6 лет назад

    LOOK WHOS BACK!!

  • @oshinwane6902
    @oshinwane6902 6 лет назад

    what uni degree do u have sir?

  • @ExStaticBass
    @ExStaticBass 6 лет назад

    Personally I'd love to see some experiments on the effects of electrical plasma on various fluids. I've done a few myself and found the reaction to be somewhat explosive and entertaining. As i don't currently have the ability to produce videos and it seems to be something you'd be able to do I thought I'd suggest it.

  • @michaelsamir4723
    @michaelsamir4723 6 лет назад

    Can you please make a video how to make (arc attack )'s musical tesla coil

  • @larsissism
    @larsissism 6 лет назад

    Very cool! Can you just as easily make a Spectrum Analyzer??! :D

  • @devttyUSB0
    @devttyUSB0 6 лет назад

    Great vid! Enjoyed it!

  • @khash-ochirsod-ochir6492
    @khash-ochirsod-ochir6492 6 лет назад

    yo where is the PCB design videos? cool pcb design videos pls ? love your contents

  • @beachboardfan9544
    @beachboardfan9544 6 лет назад

    Yea neutron counter!!! cant wait for that

  • @cesarin159x
    @cesarin159x 6 лет назад

    Very clean pcb build!! On my way to shop 😏

  • @orionmyers9546
    @orionmyers9546 6 лет назад

    Fusion reactor!?!Notifications turned on!

  • @baqcasanke
    @baqcasanke 6 лет назад

    (Regarding the 'stach) i did the same thing my freshman year brother. Keep it up! Let it grow don't listen to the haters.

  • @lukewilliams8548
    @lukewilliams8548 6 лет назад

    Please do an episode about designing a PCB.

  • @DoYouLikeMyNameDude
    @DoYouLikeMyNameDude 6 лет назад

    That is a really hacky way of driving the LEDs. I find driving them with a transistor is far easier and more effective. I am guessing that is why you had several extra LEDs on the breadboarded version; some were staying on and some were not getting power and you had to trial and error it.
    Connect the base of a PNP to the comparator output, emitter to V+, and collector to your LED.
    I have a really crappy video on my channel that shows me driving LEDs via transistor. It is a 3-bit FSM.
    Anyway cool video. I will probably try it over the weekend.

  • @ranjansharma7701
    @ranjansharma7701 6 лет назад

    Make a basics video on comparator

  • @juzerchallawala8537
    @juzerchallawala8537 6 лет назад +1

    what kind of engineer are you electrical or electronic plz ans me,i need to decide my future on that.

    • @KeystoneScience
      @KeystoneScience  6 лет назад +1

      I used to be electrical, but I am in applied physics

    • @juzerchallawala8537
      @juzerchallawala8537 6 лет назад +1

      Keystone Science thank you so muck

    • @juzerchallawala8537
      @juzerchallawala8537 6 лет назад +1

      can i have you e mail

    • @KeystoneScience
      @KeystoneScience  6 лет назад +1

      No problem! Yeah for sure! It’s sequence01123581321@gmail.com

    • @juzerchallawala8537
      @juzerchallawala8537 6 лет назад +1

      Keystone Science sir, it shows that address not found,do you have and other email than 01123581321@gmail.com

  • @Stuff_said_
    @Stuff_said_ 5 лет назад

    Hey thank you for supporting Cody’s lad you may want to message him he seem off

  • @vertox4837
    @vertox4837 6 лет назад

    Wow I will wait for that great nuclear reactor video!

  • @ericsettineri6315
    @ericsettineri6315 6 лет назад

    Yes make a jlcpcb video I just made a running led PCb board

  • @kenshiromilesvt.7037
    @kenshiromilesvt.7037 6 лет назад

    You should make a Van De Graaff generator!

  • @ViiKing_
    @ViiKing_ 6 лет назад

    what a handsome mustache, sir

  • @SianaGearz
    @SianaGearz 6 лет назад

    It's so finicky to adjust and doesn't have quite enough movement because you made the divisions linear. It would help to make them exponential. You don't need a lot of resistor values to make exponential divisions, you can do for example R/2R resistor ladder to produce reference voltages.
    Oh, to go with it, you might want an exponential regulator for the input too... well... you can bias a linear potentiometer to get eerily close, and better than logarithmic pots that you can actually buy. Look at "Better Volume Controls" on Rod Eliott's website. Of course it needs to go into a high impedance input, so this is not a universally applicable hack.

  • @charlesmartin1972
    @charlesmartin1972 5 лет назад

    When you say fusion reactor, are you talking an electrostatic fusor? Because I think you can do better than that

  • @armanhossain2491
    @armanhossain2491 6 лет назад

    After a long time!!!!!!!!!!!!!!!!!!

  • @orionmyers9546
    @orionmyers9546 6 лет назад

    Can you make a video of microwaveing a running Tesla coil

  • @Strikershar
    @Strikershar 6 лет назад

    01:05 is why I watch this.

  • @ash0787
    @ash0787 4 года назад

    I know what you mean keystone... about the Tesla coil. I think you could fix it with something called Corona Dope.

  • @pktesla
    @pktesla 6 лет назад

    Is a nice explaination to show how it's done, but the PCB demo is SUPER short and under weird angle AND lit up. NOW a catch: show us how to make NON-digital VU work. maybe add a few diodes to light the thing up, but overall just show how retro tech like this works.

  • @Piocoto123
    @Piocoto123 6 лет назад

    I am so looking forward for the nuclear reactor

  • @streamware7746
    @streamware7746 6 лет назад

    If you love Science and Exploring or even need help Join Our Discord Server: discord.gg/jDCfqey

  • @arthurdent5536
    @arthurdent5536 6 лет назад

    So I was interested in this topic until you started talking about the fusion reactor... that's way more interesting, please make it happen soon 👍

  • @the-sassy-blacksmith7594
    @the-sassy-blacksmith7594 6 лет назад

    Ooo so ur gonna be messing with radiation soon?
    Can u make a giger counter ?
    (No clue if i spelled gyger,gigar,guyger, gieger, right..)
    Ps . Diggin the stache good sir

  • @babomb2146
    @babomb2146 6 лет назад

    Anyone else think it was a typo for uv?

  • @adam79634
    @adam79634 6 лет назад +4

    You need to practice smd soldering

  • @daveshakibanasab7992
    @daveshakibanasab7992 6 лет назад

    Do a co-lab with Electro boom

  • @dhivan
    @dhivan 6 лет назад

    So just like the comparator in minecraft

  • @erdem--
    @erdem-- 6 лет назад

    After fusion reactor. Make fission reactor.

  • @spandandutta2485
    @spandandutta2485 6 лет назад

    A nuclear fussion reacter😱😱😱😱😱!!!

  • @RockingScience
    @RockingScience 6 лет назад

    Hey if you're not busy then can I challenge you in my next video if yes it will most probably be about making a super capacitor

    • @dryaldibread2327
      @dryaldibread2327 6 лет назад

      Rocking Science you cant make a supercapacitor by yourself unless you have the right equipment. And I can ensure you that it is so much cheeper to just buy them.

    • @RockingScience
      @RockingScience 6 лет назад

      Blabla Blabla no I asked keystone if I could challenge him to make something from my channel like two months ago I really don't know if he would reply now

  • @georgevavouras
    @georgevavouras 6 лет назад

    Yay!!😂😂

  • @ivinzabriskie7560
    @ivinzabriskie7560 6 лет назад

    You could be the son of Cody’s lab (Cody Dawn). Who knows?

    • @BenQuigley
      @BenQuigley 6 лет назад

      Ivin Zabriskie do your mean, Cody-Don?

  • @snowtiger1471
    @snowtiger1471 5 лет назад

    How to Make a neutron gun

  • @colonelbastian6036
    @colonelbastian6036 6 лет назад

    theres an 8 bit micro in every resistors...

  • @gouravdas6321
    @gouravdas6321 6 лет назад

    Love from India♥

  • @humanfrommars5832
    @humanfrommars5832 5 лет назад

    U are best

  • @Lizziedraper
    @Lizziedraper 6 лет назад

    You look 10 years older and I don't know why, You're great tho even if you look 30 in this video!

  • @danielmueller8974
    @danielmueller8974 6 лет назад

    Hey Nate! I sent you a letter in the mail! Mine was the one with the wax seal of my logo. I am a guy about to launch the full scale premier of my new channel. We have an office, an editor and animator, and we are about to get right into it! I would love to be able to have your input and perhaps work with you! Make sure to see that letter!
    Anyways! Have a wonderful day
    -Daniel

  • @unusualfabrication9937
    @unusualfabrication9937 6 лет назад

    A NUCLEAR WHAT????!??!?!?!!!?!?!?!

  • @guitarguy3688
    @guitarguy3688 6 лет назад

    At last after so many months you uploaded a video i thought that you were not gonna upload any video so i was going to unsubscribe you but not now

  • @unusualfabrication9937
    @unusualfabrication9937 6 лет назад

    XRAY????

  • @AzamiINFA
    @AzamiINFA 6 лет назад

    Thermal detection

  • @bobthebuilder1479
    @bobthebuilder1479 6 лет назад

    made a rail gun

  • @Sluggernaut
    @Sluggernaut 6 лет назад

    Nice trash stache. All i had was a creeper goatee until i was 30...

  • @BassheadMusicConnoisseur
    @BassheadMusicConnoisseur 6 лет назад

    Autorouter was used lol

  • @HTMproject
    @HTMproject 6 лет назад

    Sub sub.

  • @justinflache6396
    @justinflache6396 6 лет назад

    You’re cute