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How to Make a Metal Detector

Howcast
2008 ж. 21 Там.
1 484 317 Рет қаралды
Жүктеу

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Like looking for lost treasure? There's no need to break the bank for a high-end metal detector - just dig through your junk drawer!
Step 1: Disassemble the CD case
Carefully disassemble the CD case by removing the insert that holds the CD in place.
Step 2: Cut Velcro pieces
On your radio, measure out an area centered on the back of the radio. Then cut a hook and loop piece of Velcro the same size.
Step 3: Mount the radio
Stick one side of the Velcro to the back of the radio, and stick the other piece of Velcro to one side of the CD case. Then mount the radio.
Step 4: Mount the calculator
Repeat the same process with the calculator, and apply the Velcro to the other side of the CD case. Then mount the calculator.
Step 5: Set radio
Make sure the radio is set to the AM band and turn it on. Now tune it on to the highest end of the AM band, but not directly at a broadcast station. Turn the volume up and all you should hear is static.
Tip
If there is a broadcast station at the very high end of the AM band, get as close as you can so you're just hearing static.
Step 6: Fold CD case
With the calculator on, start folding the CD case until you hear a loud tone. That tone is the electronic circuit in the calculator. It's producing a radio frequency signal that the AM radio is picking up.
Step 7: Move toward metal object
Now slowly open up the case again until you can barely hear the loud tone. Then start moving your radio and calculator close to a metal object, and you're hear the loud tone again. Now the next time you drop something valuable, get your homemade metal detector and find it!
Did You Know?
In 1881, Alexander Graham Bell used one of the first metal detectors to try and locate a bullet in President James Garfield's chest. He was unsuccessful because the metal bed Garfield was on confused the detector.

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  • though I had some problem with sea water It also kzhead.infoUgkxa-FNYUOM93a388gi9a4brtSCEVmrHgJH land for finding any things very easily. (thought it would work as normal due to it being water proof within certain parts of the detector), on dry land and sand worked well. My first one, so still have lots to learn

    @SuperBill68@SuperBill689 ай бұрын

  • i actually learned this when i was watching Curious George :)

    @TheYoshiBrawler@TheYoshiBrawler13 жыл бұрын

    • TheYoshiBrawler same Oh wait this was posted 8 years aho

      @cammyca552@cammyca5524 жыл бұрын

    • Lol i am here because of curious george

      @jacquelineochoa8842@jacquelineochoa88422 жыл бұрын

  • Kipkay and Howcast?! Two of the most addictive how to channels meet for one video. Fantastic

    @larrypie915@larrypie91513 жыл бұрын

  • where do you buy that calculator ? . it looks so good!

    @sonnypat3@sonnypat314 жыл бұрын

  • Back when howcast was actually fun and usfull!

    @MrMilic@MrMilic9 жыл бұрын

    • now it is vaccines'n'shit

      @MegaAtHome@MegaAtHome9 жыл бұрын

    • ikr

      @GN10Gaming@GN10Gaming6 жыл бұрын

  • What.... Why is Kipkay on Howcast? O.o

    @BagelTree1@BagelTree110 жыл бұрын

    • Ikr

      @Pichushocks321@Pichushocks32110 жыл бұрын

    • Wtf is Kipkay?

      @avlieox@avlieox4 жыл бұрын

    • @@stanleycrookshank No. Why would i ask otherwise?

      @avlieox@avlieox4 жыл бұрын

  • I love how at the end he finds his long-lost "valuable" penny.

    @aglover360@aglover36012 жыл бұрын

  • If i increase power source...is it possible to get better results??? and would it increase magnetic field???? depth...etc...

    @Sinishaaa@Sinishaaa14 жыл бұрын

  • Kipkay

    @TheJukeboxOfMC@TheJukeboxOfMC9 жыл бұрын

  • Easier way: 1: Get your smartphone 2: Go to app store. 3. Search for metal detector 4: Install it.

    @Sheb8795@Sheb879510 жыл бұрын

    • Don't bother unless your seeking an object you can see and is a mere inch from the phone. Smartphone apps, metal detectors do not work well. Some have trippy moving coloured lines.

      @2DGraphicDesign@2DGraphicDesign3 жыл бұрын

    • @@2DGraphicDesign Did you seriously reply to a 6 year old comment? Damn I forgot I posted this.

      @Sheb8795@Sheb87953 жыл бұрын

    • @@Sheb8795 I did indeed! Lol! Developers must have produced better metal detector apps way back then.

      @2DGraphicDesign@2DGraphicDesign3 жыл бұрын

    • it only pick up the magnetic fields of objects

      @Tackeroo@Tackeroo2 жыл бұрын

  • @Howcast can i use phone radio or mp3 radio reply plz

    @killalldorks@killalldorks13 жыл бұрын

  • @w0lsky you can use other materials than velcro, you just want to be able to stick the radio and calculator to the CD case

    @Argon014@Argon01413 жыл бұрын

  • does it have to be a handheld rsdio

    @BBYDnGR@BBYDnGR11 жыл бұрын

  • Im fairly certain that the detector that is featured in the beginning of this video is the Harbor Freight 6 function detector. Its 35$ .... probably about the same as the cd case/radio/Velcro/calculator contraption.

    @Chikokishi@Chikokishi10 жыл бұрын

  • where to find that kind of calcu and radio

    @102369101@10236910113 жыл бұрын

  • Even i failed to get any sound both in fm or am mode.. Is there any special kind of radio or calculator?? kindly help...

    @ankitabhoi1138@ankitabhoi113811 жыл бұрын

  • how strong is it;;; how depp must the metal be in order to detect it...

    @skourias87@skourias8713 жыл бұрын

  • whats the depth range on it?

    @playsomepaintball@playsomepaintball13 жыл бұрын

  • ok i have a problem i try it whit 2 3 diffrent calculators and 1 radio.I put the radio on AM and the calculator near the radio and nothing hapens .... i tried whit the radio on FM and the same result nothing hapend.Is there a special calculator and radio or every type works?!

    @MrXaXasMagic@MrXaXasMagic11 жыл бұрын

  • The best howcast video ever!

    @TheSmellyJelly@TheSmellyJelly12 жыл бұрын

  • Sicne when did kipkay work for Howcast?

    @Peedeelnn@Peedeelnn12 жыл бұрын

  • I believe Kip made this for the Howcast. I didn't find this neither on Make or Kipkay's channel. And this is the only Kip's video for Howcast.

    @mantas1111000@mantas111100014 жыл бұрын

  • @FrozenIceCweam yea ;p i'ts cool that winmo devices are the same hwehe my XDA IIs and HTC HD2 are 10^308 too... (did not know about the 0.3 xP)

    @PashaSiraja@PashaSiraja14 жыл бұрын

  • how far can it pick stuff up?

    @fwimble@fwimble14 жыл бұрын

  • kip kay's voice is awesome

    @nacadacathire@nacadacathire14 жыл бұрын

  • Wow, looks great, Smart, Good Work, A++

    @RecoveryTTA@RecoveryTTA13 жыл бұрын

  • What is kipkay doing on howcast?

    @ProAtEverything123@ProAtEverything12314 жыл бұрын

  • I have a CD player that has AM and FM on it will that work?

    @funkyX000@funkyX00014 жыл бұрын

  • Kipkay is awesome Kipkay+howcast= awesome

    @shellibai@shellibai11 жыл бұрын

  • i was studying and decided to take a break...little did i know i would be looking at a very similar thing to hertz's photoelectric exp!

    @hvf26@hvf2614 жыл бұрын

  • you gotta love when kipkay works with howcast!

    @Starop99@Starop9912 жыл бұрын

  • it's a special Howcast episode just for Kipkay to be a host!

    @xxBuju09xx@xxBuju09xx13 жыл бұрын

  • @asdfasd705 possibly so you can remove the radio and calculator easily if you want to close the case or use either of them. without leaving tape glue all over them.

    @Lonewolf6565@Lonewolf656514 жыл бұрын

  • Am I doing this wrong because I'm not picking up anything like coins I placed on the ground. What's the "passing over metal" supposed to sound like?

    @JasonsSite@JasonsSite12 жыл бұрын

  • on every am channel has something broadcasting.Does anyone know how to solve that problem?

    @carburetedseltzer120@carburetedseltzer1208 жыл бұрын

  • Awesome I lost a throwing knife in my yard! Now I can find it!! :D

    @richyaranda@richyaranda13 жыл бұрын

  • how far do u go on the radio ?? i dont get it pm me

    @Hypersoccerkid@Hypersoccerkid14 жыл бұрын

  • Man, I'm watching a bunch of kipkay vids, I look for something different and I get KipKay! Nothing wrong with more KipKay :D

    @flamingfigures@flamingfigures14 жыл бұрын

  • KipKay!!! He Rocks, Best person on Howcast

    @GLogic_YT@GLogic_YT13 жыл бұрын

  • @HyperGolem It'll cost like 2 bucks... It's not some fancy radio, just a regular radio u could get at a pharmacy or garage sale or something. The calc would cost a buck too...

    @nudgefudgestudios@nudgefudgestudios12 жыл бұрын

  • does it have to be velcro

    @aj98coolkid@aj98coolkid14 жыл бұрын

  • kipkay should make MORE howcasts!!!

    @MaxGiessen@MaxGiessen13 жыл бұрын

  • @videomakingstudio quantity goes to howcast. quality goes to kipkay

    @danielcarmi305@danielcarmi30512 жыл бұрын

  • ThanKS KK That was useful,

    @Space_Aman@Space_Aman14 жыл бұрын

  • i did not know Kipkay was working with Howcast

    @BDoggy45@BDoggy4513 жыл бұрын

  • this is ma favorite howcast vid

    @Ms1112223334567@Ms111222333456712 жыл бұрын

  • AMAZING!

    @GuessMyNameOrDie@GuessMyNameOrDie13 жыл бұрын

  • Will it Blend?

    @nat388@nat38812 жыл бұрын

  • @roperclack well not really for me, you can't dig on private property unless asking and not near archeological stuff, but that's the usual you see...

    @Jerbod2@Jerbod212 жыл бұрын

  • hey,, then if I have to connect it to a coil....where should I connect it?!

    @RayFoukka@RayFoukka10 жыл бұрын

  • how would they find a copper penny ?

    @xXDJSolsticeXx@xXDJSolsticeXx13 жыл бұрын

  • but wouldnt the radio being close to the calculator trigger the buzzing noise, not the object?

    @Ball4184@Ball418412 жыл бұрын

  • why is kip kay in how cast?

    @Gundrs@Gundrs14 жыл бұрын

  • kipkay indeed! good stuff as always :D

    @BrotherBloat@BrotherBloat14 жыл бұрын

  • thanks for this vid!

    @101taxdeductions@101taxdeductions11 жыл бұрын

  • How do we know if its his ring or not

    @Timathor@Timathor12 жыл бұрын

  • Kipkay would actually make a device with all of this wiring and stuff

    @theunrealbro4939@theunrealbro493912 жыл бұрын

  • Nice gotta love it !!

    @syawalluddin1218@syawalluddin121810 жыл бұрын

  • that is cool. i want to try it

    @exacutor9@exacutor914 жыл бұрын

  • whats kipkay doing on howcast

    @nylon4343@nylon434312 жыл бұрын

  • Does it work?

    @Mr365097@Mr36509710 жыл бұрын

  • is that kipkay?

    @Sarrowwww@Sarrowwww13 жыл бұрын

  • We have metal detectors where I work. All of the packages of food pass through them. I asked a maintance person how they work, his reply, they are just a radio and a transmitter, the metal interfers with the radio waves. The computer detects a change and shuts off the conveyor.

    @pef286@pef28611 жыл бұрын

  • Can you use glue instead of Velcro?

    @Unclownful@Unclownful12 жыл бұрын

  • Damn it !! I just bought a $300 metal detector two days ago, and NOW i see this.

    @telekonable@telekonable12 жыл бұрын

  • how much is 10 danisk kroners??

    @surferriness@surferriness13 жыл бұрын

  • I needed this to find a throwing knife i lost in the grass, thanks!

    @NajoTheWolf@NajoTheWolf13 жыл бұрын

  • good and easy!!!! Yay for KIPKAY!!!!!!!!!!

    @garveziukas@garveziukas14 жыл бұрын

  • @FlazeTheHedgehog1 yes he sounds like one thx for agreeing

    @eXBouncers@eXBouncers13 жыл бұрын

  • @MSxGirl03 you could use tape

    @JeanMachine17@JeanMachine1713 жыл бұрын

  • kipkay!!!! why are you working for howcast?

    @giga113bla@giga113bla12 жыл бұрын

  • Instead of using Velcro, you can use double-sided tape

    @redheaddjlegacy@redheaddjlegacy12 жыл бұрын

  • Anybody else notice, he always uses that wood table to work on.

    @cataclysmicnothing@cataclysmicnothing12 жыл бұрын

  • does it work???

    @woxabek@woxabek14 жыл бұрын

  • pleas someone say its work?

    @ssuperhumans@ssuperhumans12 жыл бұрын

  • WOW! Somthing cool that I actually have all the supplys for! I am going to make this! PS. Kipkay FTW

    @michaelwaltrip55@michaelwaltrip5513 жыл бұрын

  • At first I thought this was a joke, but then I watched some more and realized it might actually work.

    @Sparkette@Sparkette12 жыл бұрын

  • OMG KIPKAY YOU ROCK!!!

    @TheSimpleNow@TheSimpleNow13 жыл бұрын

  • hahaha funny shit, the guy that holds the "metal detector" has metal ring on his hand

    @viorel22cr@viorel22cr13 жыл бұрын

  • What kipkay means

    @ZeeshanAhmed965@ZeeshanAhmed96511 жыл бұрын

  • @CrazyEpicDude yep

    @Plazmahawk123@Plazmahawk12312 жыл бұрын

  • look like un have to try it thanks

    @SuperRockandroll1@SuperRockandroll113 жыл бұрын

  • now i will try it!

    @MrSquashy10@MrSquashy1014 жыл бұрын

  • @TehPielightZone , Yes thats Kip Kay!

    @GreenSunTheFur@GreenSunTheFur13 жыл бұрын

  • what's kipkay??

    @swampityswamp@swampityswamp11 жыл бұрын

  • hey it is kipkay but hes not in the tags i wonder if he does any other howcast i love howcast and kipkay

    @hunterchat@hunterchat13 жыл бұрын

  • @funnyxaxier kipkay has a kind of job at how cast,instructables and make magazine and many more

    @Idontcare9876543210@Idontcare987654321013 жыл бұрын

  • yep im gonna crawl around the lawn looking for things:D

    @parkoursandr1@parkoursandr113 жыл бұрын

  • @skateforfun1990 - He's an inventor like this guy. He's the ORIGINAL!

    @TboltHurricane@TboltHurricane12 жыл бұрын

  • Is that Kipkay?

    @karan_uppal@karan_uppal11 жыл бұрын

  • KIPKAY YOU ARE THE BEST!!!!!!!!!!!!!!!!!!!!!

    @RyBoy991@RyBoy99112 жыл бұрын

  • @Haloguru999 It is too!!

    @megafranker@megafranker14 жыл бұрын

  • what's kipkay?

    @lemurlover71@lemurlover7113 жыл бұрын

  • haha always leave the cool stuff to kipkay

    @Akleloki@Akleloki13 жыл бұрын

  • whats velcro

    @MetroShock@MetroShock12 жыл бұрын

  • this is so freaking cool

    @LexiBandGeek@LexiBandGeek13 жыл бұрын

  • omg kipkay!are you a engineer or just a freakin genus?!

    @bossblackninja@bossblackninja12 жыл бұрын

  • @xxxPurpleSkullxxx maybe its an old quarter that costs a lot

    @superkid206@superkid20613 жыл бұрын

  • thanks it works

    @Arisat0@Arisat014 жыл бұрын

  • @harrygoozee good thing that you had your lucky calculator ,your lucky am radio and your lucky cd case in your pocket, youll never know when youll need a metal detector to find your keys!

    @panoulis20@panoulis2013 жыл бұрын
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