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Cable Tracker || DIY or Buy || A useful tool for every electrician! 

GreatScott!
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$2 for 2Layer, 5pcs & $5 for 4Layer, 5pcs: jlcpcb.com
Previous video: • Creating an Overpowere...
Schmitt Trigger video: • Electronic Basics #35:...
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You can download the schematics for all of the circuits here: / 42624837
You can get the Buy version here (affiliate links):
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In this episode of DIY or Buy we will be having a closer look at a cable tracker. It is a tool that is used to locate wires in you wall. This is helpful to drill holes in your wall or to locate a fault in your wiring. I will show you how the sender and receiver functions and afterwards I will create a super crude, but functional DIY version in order to find out whether we should Buy the product or create our own DIY version. Let's get started!
Thanks to JLCPCB for sponsoring this video
Visit jlcpcb.com to get professional PCBs for low prices.
Music:
2011 Lookalike by Bartlebeats

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24 окт 2020

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Комментарии : 556   
@thisfeatureisbad
@thisfeatureisbad 3 года назад
DIY or BUY? Mehdi: "Just remove the breaker and short the cables. Trace the red-dark lines on your wall"
@jena_thornwyrd
@jena_thornwyrd 3 года назад
XD I see a person of culture :)
@emanuelxavier9923
@emanuelxavier9923 3 года назад
Haha, I have the same idea xD
@peterwilhelmsson4168
@peterwilhelmsson4168 3 года назад
That sounds like a task for...
@iknowdawae893
@iknowdawae893 3 года назад
*THE RECTIFIERER*
@mohammedmohiuddin8847
@mohammedmohiuddin8847 3 года назад
Who's Mehdi?
@gonun69
@gonun69 3 года назад
I find it unreasonably funny that the jlcpcb sponsored a video about a mid-air soldered circuit.
@G_and_H
@G_and_H 3 года назад
And the conclusion was to buy the product.
@Bobo-ox7fj
@Bobo-ox7fj 4 месяца назад
JLCPCB: When deadbugging fails you
@ElectroBOOM
@ElectroBOOM 3 года назад
Great video Mr Scott (let the comments begin correcting me about your name)! Question: in your receiver schematic when using a BJT or MOSFET as the antenna input stages, the schematic shows base or gate are pulled to ground which would turn the transistors off (especially in circuit with BJT the collector is also pulled to ground, should be VCC?). So this means the circuit is relying on the strength of the signal picked by antenna to turn the transistors on and pass the signal through. Is that correct? In such case I think that's why the receiver is not doing great as you showed because the antenna is working based on a weak capacitive coupling not strong enough to trigger the circuit with existing resistive and base current loads on the antenna. I suggest to improve the circuit by biasing transistors in ON mode and just let the weak signal to get buffered through transistor. Of course the bias can only be very high resistors not to load the weak signal, or in case of BJT use Darlington to reduce base current... I think! I don't know... good luck!
@harshvithlani9399
@harshvithlani9399 3 года назад
Oh wow, I am the first like and comment of this. Hey Mehdi, nice to see you.
@onlyrgu
@onlyrgu 3 года назад
+1 for the Darlington and explanation!!! Nothing blew up, what are you complaining about!!!!!
@_BSG_
@_BSG_ 3 года назад
*FUUUUUUUUUUUUUUUUUUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL BBBRRRRRRIIIIIIIIIDDDDDDGHGHHEEEEEEE RRRREEEECCCTTIIFFFFFFFFFFFFIRRRREEEEEEEEEEEEEEEEEEERR*
@chargedlabs3506
@chargedlabs3506 3 года назад
Hey Mehdi love from India
@Stefan0719
@Stefan0719 3 года назад
Hi there. Keep in mind that in his version of the circuit he´s jusing a JFET, which behaves different than a normal BJT Transistor. The way he´s "pulling gate to ground" is the right way to do it here. Over all his circuit isn´t to good. The Jfet should have higher resistance or a better said a higher resistor in the source line, and the coupling capacitor to the op amp should be bigger. Also, if I recall correct, I think I saw some kind of frequency selective part in the original circuit (like to attentuate other frequencies and peak the 1Khz Signal), that was done using a RC circuit. In the short demonstration that was shown, it also could be heared that his version of the circuit did pick up a lot of intefference, whereas the original circuit (the one he purchased) did receive his diy transmitter rather well. I guess he used the JFET (which behaves different than a standard transistor) to have a very high input resistance and due to that make the circuit very sensitive. So yes, for standard Transistors biasing "Base" towards plus does indeed work, but for a JFET you have to "bias" the gate ("Base") towards ground. If you put it towards +, it will make the Jfet less conductive (reduce amplification). The circuit (receiver) could be improoved using a high impendance LC tank circuit, with a coil with many mH (>10mH) and a parallel resonance capacitor so the circuit will have a resonant frequency of about 1KHz. That also would put away the humm noise you heared when he tested the bought circuit (It´s not necessarry obviously, and was left away due to cost reasons). Anyhow, just wanted to reply to you. I watch your videos too, you´re an amazing entertainer.
@canonip3000
@canonip3000 3 года назад
"Thankfully I live in Germany, where there are standards" Laughs in old house where every corner is anything but 90°
@patrick_test123
@patrick_test123 3 года назад
Laughts in newish house where the wireing was done when the principle contractor already started to not pay the sub contractors.
@Teknopottu
@Teknopottu 3 года назад
Smiles in 85 year old house where every single wire is surface mounted. Also water lines.
@underwoodblog
@underwoodblog 3 года назад
yeah, here are some in 45° to safe copper, "Stegleitungen" and other funny stuff that makes every drill a thrill.
@underwoodblog
@underwoodblog 3 года назад
@@Teknopottu ...makes drilling holes easy.
@canonip3000
@canonip3000 3 года назад
@@underwoodblog NYIF cables are the worst. Even worse if they use the old color scheme
@Pseudynom
@Pseudynom 3 года назад
"Thankfully, I live in Germany and we have standards ..." My grandfather while building his house: "Ich denke nicht."
@Teknopottu
@Teknopottu 3 года назад
Thankfully here in Finland old houses were often build using surface mounting on cables and water pipes. Makes them maybe not easy on eyes but very easy to fix and easy to avoid.
@Pseudynom
@Pseudynom 3 года назад
@@CoolKoon Yes, and it was in the GDR and not the FRG.
@roboticdart6138
@roboticdart6138 3 года назад
My man did this whole video to flex all his play buttons 🤣
@greatscottlab
@greatscottlab 3 года назад
Haha not quite
@cancergaming7215
@cancergaming7215 3 года назад
Lool🤣
@alphaadhito
@alphaadhito 3 года назад
6:48 DIY metal detector next time? 👀
@ge5645
@ge5645 3 года назад
Yes good one
@fourkings7897
@fourkings7897 3 года назад
Yes
@thisfeatureisbad
@thisfeatureisbad 3 года назад
More like: "Mental" 😂
@baligpsdiving9431
@baligpsdiving9431 3 года назад
Yes, I vote for metal detector too incl. pulse vs VLF 👍
@johnbuchman4854
@johnbuchman4854 3 года назад
I'd like to see a DIY ground penetrating radar project!
@harshitaharshita6543
@harshitaharshita6543 3 года назад
You are great this is why you chosen the name "Great Scott" 😉
@greatscottlab
@greatscottlab 3 года назад
Back to the Future :-)
@ge5645
@ge5645 3 года назад
@@greatscottlab Hey great scott a big fan of yours but as you are interested in leds you can make a rgb led SIERPINKSKI'S triangle you can google it the concept of fractals
@kishoreksm8366
@kishoreksm8366 3 года назад
@@greatscottlab Then your real name is Felix?? 🤔🤔
@Asu01
@Asu01 3 года назад
Who needs PCB when you can solder all the parts on mid-air?
@greatscottlab
@greatscottlab 3 года назад
I know, right?!
@514_cricket
@514_cricket 3 года назад
"Stay creative...."
@manyirons
@manyirons 3 года назад
Yes. And then they sprayed it with a film of wax so that any dust that got in would stick and turn to grime when you worked on it. Those were the days, eh?
@harshvithlani9399
@harshvithlani9399 3 года назад
@@greatscottlab JLCB PCB are not very happy about this.
@StigDesign
@StigDesign 3 года назад
0:50 Ohter contry has summular standars too my contry norway, but never trust the house cuz you never know if it has beend done by a pro electrician or not so :)
@sobertillnoon
@sobertillnoon 3 года назад
I absolutely love your 3D soldered circuits.
@dj_paultuk7052
@dj_paultuk7052 3 года назад
I use Tone generators alot in my work. Handy for finding a single CAT5 cable in the riser of an office building that has 400 CAT5 cables. Just follow the tone !.
@sachinkapgate2528
@sachinkapgate2528 3 года назад
Scott your "DIY or BUY" videos are a source of lot of interesting information. Thanks and keep it up.
@UnknownPerson-nl7te
@UnknownPerson-nl7te 3 года назад
It's known as live wire detector,you can make it using 3 transistors,see electroboom video about it,Live wire detection circuit
@DonaldZiems
@DonaldZiems 3 года назад
This is very similar to electroboom's circuit, but different use cases. Great Scott's allows you to trace a circuit without turning off all the other circuits. Only the circuit under inspection produces a tone. Electroboom's circuit tells you if mains voltage is present, so it is great for ensuring power is off before you work, but if you want to trace a wire through a wall, you have to turn off all circuits except the one you are tracing! Not always practical. Similar principles, but different use cases.
@UnknownPerson-nl7te
@UnknownPerson-nl7te 3 года назад
@@DonaldZiems yaa some things are different like it doesn't use light to show signal,instead...use an amplifier circuit and a speaker,and instead of using live wire's ac radiations,this circuit sends over a pwm signal and is a transmitter and a receiver by itself
@ge5645
@ge5645 3 года назад
It's a circuit for electrostatic detection or basically measuring a parasitic capacitance from my point of view
@UberAlphaSirus
@UberAlphaSirus 3 года назад
No it is not. It is known as a fox and hound.you have a transmitter on a DEAD cable and the reciever can detect the signal shiwing you where it is. It's very handy with LAN and phone cables. Where hundreds of cables can be in one box and you need to find one.
@TWX1138
@TWX1138 3 года назад
The principal advantage of purchasing, and purchasing a good quality version from Harris/Fluke or the like, is the durability of the tool. Doing telecom work I've found that cheap ones end up internally using gossamer-thin varnished wires the ultimately break when the tool is inevitably dropped, but quality ones use either just PCB traces or thicker, insulated wires that survive falls. Sometimes the probe tip breaks, but good tools have modular tips anyway so replacing it is straightforward and the tip is intentionally weaker than the PCB so that the tip, not the PCB, breaks. It's along the same lines as using a proper telephone butt-set instead of a trimline phone, the butt-set can handle being banged-around in the truck or on the belt as one works, and can handle falls from-height if it's dropped, while the trimline phone just breaks. Another advantage of buying, and buying quality, is that the oscillating tone can be changed, so that if multiple techs are working in the same area, they will be able to identify which tone generator corresponds wit them or with a given circuit.
@nitfumble
@nitfumble 3 года назад
Wow the in depth look into a pcbs schematics and workings of separate parts is amazing!! Thanks :)
@MrBrelindm
@MrBrelindm 3 года назад
Sometimes while tone tracing communications cables like category 5 or category 6 data cables through electrically noisy environments it is necessary to span pairs with the tone instead of just testing one single pair in a cable. This is because within a single twisted pair of a cable that is merely bent too acutely the signal can be shunted but spanning two different pairs with the tone both lessens the characteristic impedance presented to the tone generated while lessening the chance of tracing signal shunting. The result is a much louder and stronger tone for tracing.
@mikkovillanueva8896
@mikkovillanueva8896 3 года назад
I love all of the videos made by great scott I learned from them a lot !!! THANK YOU SO MUCH GREAT SCOTT!!!!!!
@jonathansnodgrass2464
@jonathansnodgrass2464 3 года назад
Realizing now I spent 80$ on a Fluke toner for work when I could have made one. I will say the Fluke does have an advantage: if you set it to an alternating tone and then touch the leads of the transmitter together, it changes tones to confirm you found the correct wire.
@mattchalk4579
@mattchalk4579 3 года назад
If you hold the tip of your toner in one hand, and the bare wires your testing in the other, you will hear the toner pick up the signal through your body. That’s how I used to use mine to confirm the cable.
@marhar2
@marhar2 3 года назад
Love the DIY, will definitely buy. So jealous of your home wiring, I live in a 1928 house which is charming, but so deficient in electrical connections!
@marek196c
@marek196c 3 года назад
on DIY version I would add the lcd to it and by analysing amplitude to vicinity ratio (i.e. distance of 0,5m = 0,4V and 1m = 0,2V ) output the value to display making it better, probably then there would be need of only arduino nano, lcd and amp for receiver.
@karlmikko
@karlmikko 3 года назад
I used one of these day in day out for many years and never used the contestant tone mode (diy) as the variable frequency is much easier to pickup when there is interference from other sources. Especially over long distances. Buy would be my winner for sure.
@muhammadhusnimuttaqin2303
@muhammadhusnimuttaqin2303 3 года назад
Cable detection tutorial for my birthday is best birthday gift. Thank you 🙏. Greetings from Indonesia 🇮🇩
@Taran72
@Taran72 3 года назад
Very interesting video! It was most interesting to see how the circuit works. Thank you very much for the explanation. Yes, probably to buy is more convenient for that price.
@jiviteshpandab6194
@jiviteshpandab6194 3 года назад
@Navkaran Singh same doubt? He is probably the patron guy
@uwezimmermann5427
@uwezimmermann5427 3 года назад
I knew that the sound was somewhat familiar! During the 1980s and early 1990s I had a homebuilt phone to my best friend next door - and the signaling was done with the same time of dual-tone oscillator around a hex-inverter 74LS04. Each side of the chip was wired by connecting the three inverters in series with a resistor feedback over one group of inverters and a capacitor over another pair. Then mixing the two tones together gave quite an efficient siren effekt.
@JessieKropp
@JessieKropp 3 года назад
Crazy! I was just looking into what it would take to do something like this. Great video as always.
@therealjammit
@therealjammit 3 года назад
The ones I've seen: The transmitter uses two 555 timers (or one 556 dual timer). One 555 is set to astable mode (pin 5 is the output through a 1k resistor) with its frequency modulated by the sawtooth from the other 555 (makes a warble tone). The receiver is the same lm386, but uses the jfet input amp (like your version), but the jfet is from one of those capsule microphones (remove the microphone diaphragm. You'll see the gate of the jfet. Extend the gate wire). The jfet in the microphones are specially designed to not need a bias resistor (self biased) and have a really high input resistance. You can use the transmitter without removing mains power. Just wrap the transmitter wires around the mains cable (no need to separate the conductors) and short the clamps together. It uses inductive coupling. Receive distance is reduced.
@1996BRECHT
@1996BRECHT 3 года назад
Huh it didn't occur to my I can use a tracker to find cables in walls, nice tip! I bought it mostly for differentiating un-labeled cables...
@brooknet
@brooknet 3 года назад
I've got one of these and by the square-wave sound that it makes, always thought that it was quite simple - but I didn't know it was as basic as this! Still, it's worth the money. I previously used a cheap AM radio as a detector but the main problem is that it's not very directional and due to design, it is tuned to receive radio stations instead of signals in cabling.
@nilukumari7306
@nilukumari7306 3 года назад
I am in class 9 and learned many things from your videos. Diy or buy is my favourite series
@Salfke
@Salfke 3 года назад
Very nice and well explained video, i learn a lot, watching your video's I use this tool a lot, to track utp cables. A must have tool
@yunis5097
@yunis5097 3 года назад
In Germany, we have standarts... weird flex
@zarigata
@zarigata 3 года назад
OH BOY, HERE WE GOOOOOOOOOO
@canonip3000
@canonip3000 3 года назад
In Germany we have people, who "pfusch" (not follow those standards, therefore creating inconsistence)
@yunis5097
@yunis5097 3 года назад
You dont need to tell me that, but yeah "pfusch" is a thing
@Chupacabras222
@Chupacabras222 3 года назад
Every country has standards. And every country has pfuschers...
@dahimbi7069
@dahimbi7069 3 года назад
So glad I live in bavaria, we don't have " Pfusch ", we just have " Passd scho " 🍻
@AmplifierWorld
@AmplifierWorld 3 года назад
Hii, is there any difference regarding gain of various op amp ic's Which op amp ic has high gain??
@mervinvicta9985
@mervinvicta9985 3 года назад
Prototype wiring is great for a mock-up to test circuits. Through to the '60s all valve/tube, and some transistor equipment was hand-built utilising point-to-point wiring until PCBs became the go to method. It is still done today in audio gear like guitar amplifiers and HiFi amplifiers using tubes/valves where not only the traditional characteristic sound/tone is sought after but also the traditional build method for perhaps a unique, non mass-produced piece of gear. Tag strips or turret boards, a rectangular bakelite strip with a row of lugs, are used as solder points between components, the same principle as pads on a PCB. The difference in sound tone between point-to-point and PCB construction is subjective and similar to how someone might taste wine.
@ELECTROGYAN
@ELECTROGYAN 3 года назад
Only one word GreatScott!!! 😉
@NotASingleGoodNameLeft
@NotASingleGoodNameLeft 3 года назад
The art of electronics, now that is an awesome book!
@MsGabrieljf
@MsGabrieljf 3 года назад
I can ensure you by experience that in Brazil the DiY version is way cheaper than buy it, because those instruments offen arrive in our country with very high taxes, actually your tutorials have been helping me for a long time, making it possible to build tools that I can't afford!
@jimjimx5418
@jimjimx5418 3 года назад
What are salt taxes?
@MsGabrieljf
@MsGabrieljf 3 года назад
@@jimjimx5418 sorry, I mispronounced the word, I wanted to say "salty" meaning that the taxes are very high
@andie_pants
@andie_pants 3 года назад
It's surprising how many of my favorite RU-vidrs are German. From The Mathologer to TheOftler to you, I love the variety of accents! I notice your accent sounds a lot like Sabine Hossenfelder's.
@vripscript
@vripscript 3 года назад
your 15 min is equivalent to my 15 months
@hpdv0276
@hpdv0276 3 года назад
Scott can you fix your receiver schematic at 7:25. The Q1 D1 parts nicht work
@1Hippo
@1Hippo 3 года назад
Many clamp multimeters have a NCV (non contact voltage) function, it works quite well on my UT210E and does not require a sender, just detects the field from mains AC. Seems more useful to me, especially if there is no outlet nearby. Or is there any advantage with this injected HF signal?
@Drxxx
@Drxxx 3 года назад
Super project!
@berntolovhellstrom8891
@berntolovhellstrom8891 3 года назад
Excellent video. Personally I used a simple oscillator as transmitter as yours and a AM-radio as a receiver. Much cheaper as i already had that portable radio and also got better Gain.
@mikehill3426
@mikehill3426 3 года назад
Buy sounds right in this case. Big fan of your channel.
@arpithjain4889
@arpithjain4889 3 года назад
"Stay creative, And I will see you next time!" -Great Scott, 2020
@miguelrod_qui
@miguelrod_qui 3 года назад
That's a great idea!
@shamrithponlingam1656
@shamrithponlingam1656 3 года назад
i dont care if diy or buy is the winner, iam winner to have discovered your channel
@greatscottlab
@greatscottlab 3 года назад
Awesome👍
@briscuits
@briscuits 3 года назад
Super cool video! I might have watched it more than once... I've used these toners many times for low voltage work and eventually replaced the most of my cheap analog versions with what I believe is the only digital version (Fluke intellitone) and is priced as such. Using the second version is a must in a building with noisy (rf) cabling. Might be an easier win for the DIY, but maybe not.
@ELECTROMAN_MX
@ELECTROMAN_MX 3 года назад
I see you're a man of culture, The Art Of Electronics "Best of the Best on teaching electronics" from Paul H.
@sprescav
@sprescav 3 года назад
I bought the bosch wall scanner 120. I save time on every job just avoiding drilling in the wrong place.
@pigeon3036
@pigeon3036 3 года назад
Keep up the great work!😃😃😃😃😃
@mr.coolio4321
@mr.coolio4321 3 года назад
Very cool!
@kerber63
@kerber63 3 года назад
We have used friends guitar amp and guitar connector for finding installations in the wall. It starts to buzz when you are close to the wires. At first we started with the whole guitar, but later found out that it is also ok with just a jack.
@vaseemmehrancp9372
@vaseemmehrancp9372 3 года назад
Great video Scott .
@jessicaganser2982
@jessicaganser2982 3 года назад
You can also use a non contact voltage detector thath you can build with a 555 timer two resistors and a capacitor. It also works well. Nice video thank you.☺
@noorulhaque9027
@noorulhaque9027 Год назад
does it works on concealed wires
@transistorbrains
@transistorbrains 3 года назад
So then if you had to do it over again, what op amp would you go with for your amplifier? Interestingly, I recently bought some lm386s for an audio project I intend to work on
@harikamalakarreddydarapu7410
@harikamalakarreddydarapu7410 3 года назад
Very nice project
@chriskaprys
@chriskaprys 3 года назад
I'd love to see some version of this type of equipment that could trace WiFi radio signal from a router/AP. Not just a Netstumbler-esque software-based solution like NPM, but a circuit/device you could solder together and build from parts, like this cable tracker, that would give you a real-time read out of the RF signal being transmitted from the router. Probably plenty of reasons why it's problematic, but would still make an interesting project.
@SinaAleali
@SinaAleali 3 года назад
Thanks for your awesome videos. Is there any way to make this work without turning off the main power? And what about the telephone lines? Do we need to disconnect them from the main distribution box?
@riyazkureshi8113
@riyazkureshi8113 3 года назад
How much deep buried cables it can senses? I want the same thing for broken cable detention which is underground but not in walls. Will its power would be enough
@kuravani1963
@kuravani1963 3 года назад
Good explanation . Thanks
@LumocolorARTnr1319
@LumocolorARTnr1319 3 года назад
I was wondering where the cable in my wall was going when I woke up this morning for real, how the hell did youtube know to recommend me this the same day?
@chargedlabs3506
@chargedlabs3506 3 года назад
Loved it thankyou
@N1lav
@N1lav 3 года назад
@GreatScott Is it possible to modify the DIY version to have 2-3 antennas to pinpoint the wire for more accuracy? 2 antennas 3 inches apart with a comparator between their output stages should work, right?
@mmoci81
@mmoci81 3 года назад
Great video, very useful channel, one of the best for electronics. Since I am a noob here, looking into some basics, I would like to see occasional videos with some basics and theory behind simple electronics circuits. For example, I would like to understand how to calculate some of the values for simple circuits. For example, LC filter calculation for rectifier, or similar.
@TheSomar1991
@TheSomar1991 3 года назад
Great job great Scott
@ADRIAAN1007
@ADRIAAN1007 3 года назад
Luckily I have brick walls so the cables go straight up from outlets and use the roof cavity to move horizontal. Just have to avoid places above an outlet.
@electronic7979
@electronic7979 3 года назад
Very good
@minecrafter9099
@minecrafter9099 3 года назад
What if the emiter is shorted? on the buy version it shouldn't be a problem (well, at least, when i worked in telecom, I used this a lot to find pairs between cabinets, if the sound went away when shorted i was sure that was the right pair)
@PeterHertel
@PeterHertel 3 года назад
I have a stud finder with a built in wire detector which I find works well on live ac wiring. What's the difference between and benefits of the two different approaches?
@dinarajancn5902
@dinarajancn5902 3 года назад
very good Explanation. Sir you are great
@michalkana9764
@michalkana9764 3 года назад
I love this DIY or Buy, now I know what is best.
@michalkana9764
@michalkana9764 3 года назад
Can you understand Czech?
@afseng8558
@afseng8558 17 дней назад
Hi i wonder if you can make Circuit Breaker tracer it look like the same working principle despite of the transmitter could you please make another video about this subject that i mentioned
@bobdavis321
@bobdavis321 2 года назад
I have ben tracing wires this way for decades. I am on my third toner. You can trace live wires neutral to ground. I have had a water leak into the wall cause the tone to go away-the insulation was soaked! This does not work well when there is conduit, you have to open junction boxes at both ends to find the wire with the tone on it. I found a fried wiring harness in my car with a toner last week. It saved the car from the junk yard!
@UnBOXTopicz
@UnBOXTopicz 3 года назад
Hey Scott, thanks for the video. Watch ur stuff as reference for personal projects. I am looking for an affordable oscilloscope but they are just very expensive and if they are cheap than they are about 100Hz. Can you recommend some that are well suited.
@dennisolsson3119
@dennisolsson3119 3 года назад
The transmitter with an Arduino that encodes the signal would be awesome. Then you could have multiple outputs with different beep patterns for tracing multiple runs at once. And keep using the bought receiver.
@Rob_65
@Rob_65 2 года назад
Great video. I needed one yesterday, luckily only 4 cables to choose from :-) With the low prices on AliExpress I am almost tempted to buy one by I think DIY is the way to go, then I can make multiple transmitters with different tones (or sequences). I should still have some 4069UBE (unbuffered !!!) chips in my old stock and the good old BF256C (or similar) should also be collecting dust somewhere :-)
@MCsCreations
@MCsCreations 3 года назад
Really, really interesting project! Great work, dude! 😃 There's those "life line detectors" or something like that... Are you going to try those? Anyway, stay safe there! 🖖😊
@peterpiso7384
@peterpiso7384 3 года назад
I have one question hopefully you can help me out, I'm an electrician in Massachusetts and i have a cable finder but it gives me problems in very old buildings. Because ether the ground is connected throughout the building or the neutral in connected to a pin block in the panel So I Am all ways following different wires/cables. Please help if possible thanks your channel is awesome
@bhanumishra6132
@bhanumishra6132 3 года назад
I new it! I was waiting for this vedio it is 10:20 pm here in India and I am still watching it
@ELECTROGYAN
@ELECTROGYAN 3 года назад
Congratulations 🎉 in advance for 1.5M subscribers ❤️ #ElectroGyan
@bussidmoonmidnight9232
@bussidmoonmidnight9232 3 года назад
You are amazing In creation
@jaredknapp6832
@jaredknapp6832 3 года назад
Gut gemacht.
@jeberohaase4083
@jeberohaase4083 3 года назад
Evrytime good videos dis is one of it
3 года назад
Nice, very nice. Thank you again!
@greatscottlab
@greatscottlab 3 года назад
My pleasure :-)
@eDoc2020
@eDoc2020 3 года назад
7:26 Is this schematic correct? The first thing I notice is there is no power connection to the preamplifier, how can it achieve any amplification? As drawn, once the circuit reaches steady state the junction of D1, R6, and R7 will be at 9v. For any signal to get through the emitter of the transistor will need to be above battery voltage. I'm not sure if this is the proper fix but it looks to me like you may have GND and Vcc reversed on the preamplifier circuit; if you swap them it looks like the circuit would work.
@Gooberslot
@Gooberslot 3 года назад
Why did you try to go simpler for the DIY version instead of adding features? You could have added an led bar graph or tunable senitivity or something to make the DIY version a better value.
@lautarolavecchia5995
@lautarolavecchia5995 3 года назад
im a big fan of this diy or buy
@JKnight89
@JKnight89 3 года назад
Extremely helpfull information.
@aliz.4043
@aliz.4043 3 года назад
great episode
@miketoreno4969
@miketoreno4969 3 года назад
Nice video thank you .
@tech_thirst
@tech_thirst 3 года назад
Sir I have a 0.5 hp water pump motor I want to make an automatic switch which turns off the motor after tank gets full. Can you help me? By making video on this topic.
@sarathai2876
@sarathai2876 3 года назад
I love your videos
@eloisereid3437
@eloisereid3437 3 года назад
That's great! 🔝💫💥
@steved9128
@steved9128 3 года назад
can you show how to make a plasma ball connect to mp3 player to see the music play in the plasma? not interested in sound, just the frequencies in plasma for healing. ty.
@bobz143
@bobz143 3 года назад
I wonder for a long time, do you think a rtl2832u could be used as wire detector?
@cryptophoenix3031
@cryptophoenix3031 3 года назад
Could you make a video on how to work ESD safe? And when it is necessary to do so; for all circuits or just some very sensitive ones?
@egg7990
@egg7990 3 года назад
Hey GS, what kind of silver copper wire do you use for your perfboard projects?
@greatscottlab
@greatscottlab 3 года назад
Silvered copper wire 0.8mm
@egg7990
@egg7990 3 года назад
@@greatscottlab Is there a reason you go with silvered copper wire? Would tinned copper wire be the same thing?
@giovanivalentino559
@giovanivalentino559 2 года назад
When the antenna is closer to the point of frequency. there is no sound. Except when I touch the antenna with the frequency there is a sound in the speaker. Is there a solution to this problem
@sandeepsinghjagdev3485
@sandeepsinghjagdev3485 3 года назад
Can these signal picked up by nearby amplifier???
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