Hello BOOMers, there are debates on that my circuit which has capacitor parallel to high voltage source is worse than the other type I also showed at 0:02 which has spark gap parallel to the high voltage source, because DiodesGoneWild mentions it here: th-cam.com/video/wSp1IzmRUk8/w-d-xo.html While the purpose of this video was not to make a proper commercial transmitter, because FOR GOD'S SAKE, WHO BOTHERS MAKING A COMMERCIAL SPARK-GAP TRANSMITTER NOWADAYS... both circuits lack many components that could make them better, both would work fine with proper components and both have pros and cons. Like in my circuit high voltage resonance frequency is right across the transformer and although mostly filtered, could stress the transformer to some extent, while if the spark gap is across transformer, it could short the high voltage for extended period of time overheating the transformer. In either case having a larger series inductor to the output of the transformer could protect it better. But WHO CARES?! Both circuits work for demonstration purposes, and need improvement for commercial use. So don't go selling this junk to make money!!
At least Mehdi did not construct an extended wave guide and rooftop feed horn driven by the powerful Magnetron antenna inside his (DANGEROUS - MODIFIED) microwave oven. Glad he's smart enough not to transmit (line-of-sight, FM modulation), featuring the sound of his voice saying, "Full Wave Rectifier".
@@FindLiberty Please, it's full BRIDGE rectifier, unlike a puny half bridge rectifier. Also i would love to watch a video of a rooftop horn driven by a magnetron, if you care to share video name :)
@@Uejji Not quite, a little thing called harmonic interference. That is signals generated at the multiples of the primary resonance frequency... Now each one is half the power of the previous but still. Spark gap transmitters are generally not legal in most jurisdictions without special permissions for this reason. They are very good at creating very wideband interference.
@@EwanMarshall this is why I think doing this experiment at home could run you into some legal issues. IIRC the FCC doesn't allow spark-gap transmitters because of the harmonic interference
You sure rang my bell! I was 12 years old when behind the RCA tv and repair store, I found a tuning coil from a tv. I had a morse code toy and took the keyer off it. I also had found a rca 22 volt battery in the trash and really did not know anything about what I was going to do. So I hooked the battery up to one side of the coil and the other side to the keyer. I mounted the coil on the top of a small cardboard box and the battery went in side it. I could not know if I was transmitting anything or not. But just enjoyed doing it and had an idea I was putting the battery power into the coil. And because the code box made noise I guess I was expected a tone. But I did get a small click from it. But when I went with mom and dad to the store, I took it with me. But everytime I keyed it up, it would wipe out the car radio. Boy did dad get mad when he figured out what was going on!
More like Iranian immigrant teaches people how to burn out RF circuits on everyday items: WiFi routers, electronic parking meters, garage doors, automobile remote locks, etc.
Lmfaooo I guess you could say that except for the time he was celebrating 1M subs and made Jacob's ladder out of 28 inch sparklers and it got too top heavy and came down on him and he caught it with both hands and he would've cooked to death if the alligator clips weren't alligator clips but rather soldered together wires it wouldn't have disconnected like it did with the alligator clips and he narrowly escaped death. It was gnarly lol
He's mentioned that many of his shocks or explosions are either faked or exaggerated for comedic purposes pplbut yes the Jacob's ladder was not faked and he was in actual danger. You can tell by his reaction and how he refers to that as one of his moments of actual danger.
Hey Medhi, when BluePrint and I did our spark gap radio video last year - I found that in order to transmit outside, even with a radiated power of 20W broad spectrum, FCC denied me clearance. USA FCC is incredibly strict. Long story short, we had to do our tests indoors. But I managed to get clean transmissions close to 100 feet away when I tested underground in a parking garage, and never got the chance to do a full power test outdoors! Spark gap radio is really cool. Nice video!
Tempest Tempest Nah, you're the idiot since you seem to have no clue who glasslinger is - just look what Ron (glasslinger) does on his channel: Making home made tubes (even a magnetron) for example..
I love your old school tech. I got interested after reading a book in my school library in the 70s aged 12. I got hold of a bunch of ex-ministry of defence components. Massive capacitors, valves, resistors, inductors and all sorts. These all got connected together with PP9 batteries. The number of times I shocked myself belies the fact I'm still alive today. I was also interested in photography. I decided the best way to photograph a spark was using long exposure on my 110 camera and a 5000microF capacitor discharging through a 240/12V transformer in reverse. First attempts not good. I needed dark. So I put the whole lot under my bed. Camera on long exposure. In those days, beds were horse-hair or something. Suffice to say, the spark was massive. So was the fire on the undeside of my bed.
The reason they aren't legal to build is that spark-gap transmitters are incredibly broadband. They tend to generate a lot of harmonics that tend to cause interference. There's a good reason vacuum tubes became ubiquitous for radio transmission in the 1920s, and unlike their spark-gap predecessors, tube-based transmitters continue to be legal to this day. Because most amateur radio transmitters using tube finals have a pi or pi-L network on the output for impedance matching, they tend to be quite clean.
11:15 I think that was rare case of GENUINE surprise electro-boom. Most spoofs and fibs are well-thought and executed skits (and one of reasons I love Mehdi!), but this one and the one where whole installation fell on him while razing sparks and bolts all over the place is where I cannot find any proof of him making things up. His reaction is also unusually strong! I'd Love Mehdi to make at least one presentation HOW he is planning his skit electroshocks, how he is taking safe measures etc. but at the other hand I'd rather not see it; as they say, true magicians never show how their magic is made!
💢💢 I loved this experiment!!! I'm an ex-Ham radio operator General Class and followed the calculations. You have some mighty nice electronic instruments! And when you poured salt water into the Leyden Jar, I finally understood how it worked as a capacitor. The wire that you dangled from the top acted like a "brush" into the brine which acted as the second plate! I'm thrilled to have watched this experiment. Fritz 💢💢
Mehdi: Yay Sparky fun Every Amateur Radio operator in the world: I felt a great disturbance in the Force, as if millions of voices suddenly cried out in terror and were suddenly silenced. I fear something terrible has happened.
The fact that I could understand everything in this video makes me so happy beyond belief. I’m just starting my communications module next week and this video has sparked my interest. Thank you 🙏!!
@@FIFIx30 also many websites and services are blocked by the US sanctions. We are block from ether side so having VPN is mandatory. Some times I wonder the government it's self sells these VPN services to gather some budget. Our lives are funny from many aspects.
Thank you so much for explaining this in such a simple way! Seriously, I could take engineering classes at a university that couldn't help me learn electronic circuits and functions like this.
For the sake of your sanity, don't ever try to calculate how long uploading this video to TH-cam would take over that spark radio link, encoded in Morse...
Earth: "hey look we can transmit invisible signals through EMF" Aliens whose visible spectrum is larger than ours: "What the fuck is going on on Earth"
Well at least I know the US military after Afghanistan reinitiated the program of teaching it after the Taliban started using it when they figured out nobody knew how to work it.
this video should be renamed "how to piss off your neighborhood hams" legend says that if you run a sparkgap transmitter for 1 day straight the FCC will come and beat you with tire irons
I like how you presented the concepts of inductance and LC resonance in a very hands-on and understandable way. I used to play a lot which such circuits. Nowadays, I work as an RF engineer for some years at a medium-sized company, and unfortunately, a lot of applicants at our company have literally no idea what LC resonance actually is, even though they apparently have studied electrical engineering. (At least my job is secure for the foreseable future)
As a ham radio operator, stay the hell out of my neighborhood. LOL We have enough to deal with with all those cheap switching mode power supplies out there. A long time fan....
ElectroBoom, You probably know this already. The circuit at 7:36 can be used as an AC voltage dividor. Measure the voltage across the inductor and use it and the current to find the reactance of the inductor , and which is like the effective AC resistance = voltage / current. Use that value in the reactance of an inductor formula and solve for the inductance. I have used this concept to find the value of a capacitor using a 1000 hz sine wave from the earphone output of a computer, and a voltage meter. I have a laser, audio circuit posted that I made if people want to make one.
I thought the ground connector was harmless though. I mean, styropyro plugs his grounding strap in there every time. come on, you know you want to r/whooosh me
Why the hell are there so many views but barely any likes. This man spends so much time teaching his knowledge for free for others. My man deserves more likes fellas. I appreciate you videos ElectroBOOM, thank you for all of your fun teachings.
Wait maybe that was a cry for help? Like that TV that was arbitrarily sending out SOS and had a handful of three-letter agency individuals come over and askd if any one was in distress.
Great video, Mehdi! Spark gap xmitters are awesome, the very first radios along with xtal sets. This helped to save 705 people aboard the Titanic. It was used extensively in WWI and got to be quite advanced, tunable, etc. Valves quickly replaced all spark equipment, but it was still in use into the early 1920s. The Titanic's Marconi system was one of the most advanced and powerful at the time, I think upwards of 5KW of power. Every spark emits a radio frequency... turn on an AM radio and hear the noise from a light switch, an appliance running, even distant lightning during a storm.
This is why I admire Engineers very much. First an idea, then a few cryptic equations and a pen, paper, and calculator, next thing you know you're transmitting stuff across the room and probably confusing the heck out of passing birds coming back from migration... =D
That wasn't an "SOS". That was an "S" followed by an "O" followed by an "S". The distress signal does not use inter-character gaps. The nine elements are sent as a single symbol.
@@jonc4403 +1000. The noise from crappy switching supplies in LED lighting is bad enough, the last thing we need is people playing with spark-gaps of all things.
@@jonc4403 Oh you're the guy I thought would be fun to piss off a few comments up. Just once. Until the strongly worded letter telling me to stop would arrive at my doorstep. lul
Heh, had the same thought. Though with the tiny output power I doubt the signal would go more than a few houses in every direction. Still would be annoying as crap tho.
Thank you for that video. I am an Amateur Radio Operator and I have never seen a better example of how an LC circuit works. I wish I could connect to your brain like they did in the movie The Matrix and download some of that knowledge.:-)
WOW! So much good information in one video...practical and that can be used to make something real. In these moments I am proud to be a Patreon supporter! :) thank you so much!!
As a kid many many years ago, my uncle talked about using these when he was young. I understand it caused a lot of RF on a lot of frequencies Sounded like fun, but I did not try.
if you can use a battery, coil and transistor to amplify weak radio singals into audible tones, im sure we can somehow tap AC voltages present in the ambient surroundings..
Why can't I comprehend these simple explanations? I can grasp most other areas of science, even quantum physics, but electrical engineering and circuit diagrams just go easy over my head, regardless of how simply it is explained!
Reminds me in the mid 70's as a teenager building a spark transmitter using a relay wired to make it buzz and using an old sound output transformer. When connected to a 45 metre long wire antenna it would transmit for several miles on nearly all frequencies at the same time, it could even be picked up by TV's in the UK UHF band where the screen would be covered in white random lines and the sound go crackly regardless of channel. My neighbours used to call out the TV engineers with great regularity usually blaming their TV sets, all they had to do was ask me when I wasn't out on my bike with my transistor radio doing signal checks.
@@citricdemon By running a wire from the house to a scaffold pole at the bottom of the garden. I think it would be called " inverted L" You could pick up radio 4 using just a diode and crystal earpiece with no coil or vc.
A couple years ago I built a few an LC circuits in parallel, powered by one of those high voltage modules in series, with a different sized variable inductors, and we had a servos which automatically sweeps through the rotations, interfering with multiple different bands at one time. My modification made it even simpler but to only run on AC with several geared synchronous motors, and once they hit the end stop they’d turn the opposite direction. It was fun.
@@netfoot He's not modulating anything. If what you say is true then every person or university that does a DIY Tesla coil is breaking the law as well.
@@Aquatarkus96 He set up a receiver and transmitted (what he thought was) the international distress signal using A1A modulation; Signalling by keying the carrier directly, a.k.a. Continuous Wave (CW) or On-Off Keying (OOK).
I was building one of these when you published this video. That was one hell of a learning curve. I wish I would have delayed 3 months and let you do all the work:)
Built one 60 years ago. I remember my folks having a coffee klatch and some of the neighbors mentioned their tv’s acting strange every evening for the past week. I was very very quiet, but i swear i saw my mom giving me the eye. Threw out the thing and the 1926 Popular Mechanics magazine that showed me how. Obviously it didn’t kill me, but i made up for it several times in my life...
I just realized that at the end of the video, before he starts speaking about ExpressVPN, and he says "help me" he says "S.O.S." with the tazer in morse code. Well played Mehdi, well played.
Yes, but Nicola Tesla received Marconi's signals with his apparatus (and were sure to hear transmissions sent by intelligent aliens). So who invented the radio? No doubt, . . . both!
Hilarious! I'm putting together a Facebook social learning group to help people get their Amateur Radio License and the week after I talked about spark gap transmitters, you post this video. Great minds think alike! This video is getting a share!
Hello Mr Boom , you can plug the ignition coil into the mains with a standard light dimmer switch , your antenna also needs to be about 260 feet long for 1.4 mhz .
Using a variable capacitor and inductor, you have the equivalent of an AM radio. Just add a diode! Also... By adding the capacitor you really just turned it into an automotive ignition system. Coil, points, condenser!
Fun video! You can also do morse code with a series of small hand grenades interspersed with larger ones. Would likely create less interference. Your AARL Coil calculator is in inches of diameter, not exactly the same as the 60 MM you measured
Hello BOOMers, there are debates on that my circuit which has capacitor parallel to high voltage source is worse than the other type I also showed at 0:02 which has spark gap parallel to the high voltage source, because DiodesGoneWild mentions it here: th-cam.com/video/wSp1IzmRUk8/w-d-xo.html
While the purpose of this video was not to make a proper commercial transmitter, because FOR GOD'S SAKE, WHO BOTHERS MAKING A COMMERCIAL SPARK-GAP TRANSMITTER NOWADAYS... both circuits lack many components that could make them better, both would work fine with proper components and both have pros and cons. Like in my circuit high voltage resonance frequency is right across the transformer and although mostly filtered, could stress the transformer to some extent, while if the spark gap is across transformer, it could short the high voltage for extended period of time overheating the transformer. In either case having a larger series inductor to the output of the transformer could protect it better. But WHO CARES?! Both circuits work for demonstration purposes, and need improvement for commercial use. So don't go selling this junk to make money!!
I have achieved 1st comment!
Whats that......... Oh no one cares
I wish my brain was as big as yours :(
Make a spark gap ferrite core tesla coil
Ok boomer
ElectroBOOM search for "ok boomer"
Government: "stay home for public safety."
Government after watching Mehdi: "we were wrong"
lol
At least Mehdi did not construct an extended wave guide and rooftop feed horn driven by the powerful Magnetron antenna inside his (DANGEROUS - MODIFIED) microwave oven. Glad he's smart enough not to transmit (line-of-sight, FM modulation), featuring the sound of his voice saying, "Full Wave Rectifier".
LMAO 😂😂😂🤣🤣🤣
@@RandomUserr_ Well i don't. Care to tell?
@@FindLiberty Please, it's full BRIDGE rectifier, unlike a puny half bridge rectifier. Also i would love to watch a video of a rooftop horn driven by a magnetron, if you care to share video name :)
FCC: "Which frequency are you transmitting on?"
E.B.: "Yeah".
Haa, all of them that are possible.
What is FCC?
@@niko5008 Federal Communications Commission
Had the exact same thought.
@@grassroot011 Why are all of them possible? I'm kinda confused sry
Mehdi :"kill me kill me kill me "
Electricity :"I'm trying I'm trying I'm trying "
GCFI: '' Not happening as long as im around''
@@fidelcatsro6948 electricity provider: not happening as long as im not around
Lol
Believe me, he isn't human, he is Frankenstein
Wtf 🤣
If we ever raid Area 51 again, remember to look for the computer with unedited audio files that have Mehdi swearing without bleeps
Command accepted...
@@rabbit3704 wth does that have to do with this
the dark phantom it’s Peter Rabbit 2
@@rabbit3704 Don't You Think We Knew This Already?
Aiger Akabane idk
His neighbours are wondering why their wifi keeps cutting out.
He would need a resonance frequency around 2.4 GHz to interfere with most residential wifi. So about 1700x the frequency.
@@Uejji Not quite, a little thing called harmonic interference. That is signals generated at the multiples of the primary resonance frequency... Now each one is half the power of the previous but still. Spark gap transmitters are generally not legal in most jurisdictions without special permissions for this reason. They are very good at creating very wideband interference.
And lights keep blinking all the time
@@EwanMarshall this is why I think doing this experiment at home could run you into some legal issues. IIRC the FCC doesn't allow spark-gap transmitters because of the harmonic interference
And that's how you commit a federal crime as a TH-camr
You sure rang my bell! I was 12 years old when behind the RCA tv and repair store, I found a tuning coil from a tv. I had a morse code toy and took the keyer off it. I also had found a rca 22 volt battery in the trash and really did not know anything about what I was going to do. So I hooked the battery up to one side of the coil and the other side to the keyer. I mounted the coil on the top of a small cardboard box and the battery went in side it. I could not know if I was transmitting anything or not. But just enjoyed doing it and had an idea I was putting the battery power into the coil. And because the code box made noise I guess I was expected a tone. But I did get a small click from it. But when I went with mom and dad to the store, I took it with me. But everytime I keyed it up, it would wipe out the car radio. Boy did dad get mad when he figured out what was going on!
I imagine one day I see in the news:
*Iranian immigrant causes nationwide power surge caused by "Homemade EMP" connected to local power plant*
U are killing me :'DDDD
More like Iranian immigrant teaches people how to burn out RF circuits on everyday items: WiFi routers, electronic parking meters, garage doors, automobile remote locks, etc.
His own expensive Kesight scope sitting a foot away!
How will it be on the news if the EMP shuts everything down?
@@scottlaw1525 newspapers
"Which ham radio band do you transmit on?"
"All of them"
Yes
"At the same time!"
LoL got a good laugh out of that... only because it’s so true.
Noice mask
funny!
The fact that this guy knows how to hurt himself without killing himself proves how smart he actually is
Lmfaooo I guess you could say that except for the time he was celebrating 1M subs and made Jacob's ladder out of 28 inch sparklers and it got too top heavy and came down on him and he caught it with both hands and he would've cooked to death if the alligator clips weren't alligator clips but rather soldered together wires it wouldn't have disconnected like it did with the alligator clips and he narrowly escaped death. It was gnarly lol
He's mentioned that many of his shocks or explosions are either faked or exaggerated for comedic purposes pplbut yes the Jacob's ladder was not faked and he was in actual danger. You can tell by his reaction and how he refers to that as one of his moments of actual danger.
@@r4ng3k03r1 that "sentence" is so painful to read
exactly
Lol
Hey Medhi, when BluePrint and I did our spark gap radio video last year - I found that in order to transmit outside, even with a radiated power of 20W broad spectrum, FCC denied me clearance. USA FCC is incredibly strict. Long story short, we had to do our tests indoors. But I managed to get clean transmissions close to 100 feet away when I tested underground in a parking garage, and never got the chance to do a full power test outdoors! Spark gap radio is really cool. Nice video!
You earned my subscription. Very informative and cool channel!
But how they check if anyone transmitting or not
@@taufeeqkhan2629 the signals are always monitored and can be tracked to a location
Right, but everybody knows that the correct way to deal with the FCC is to do it first and ask forgiveness later.
Ragnii TKS Do they triangulate?
FCC monitor guy: "I'm picking up some idiot with a spark gap transmitter!"
*CRTC, he's in Canada
Wait, thats illegal
glasslinger = idiot
Tempest Tempest Nah, you're the idiot since you seem to have no clue who glasslinger is - just look what Ron (glasslinger) does on his channel: Making home made tubes (even a magnetron) for example..
CRTC "We seem to have discovered a new numbers station!" 😋
I love your old school tech. I got interested after reading a book in my school library in the 70s aged 12. I got hold of a bunch of ex-ministry of defence components. Massive capacitors, valves, resistors, inductors and all sorts. These all got connected together with PP9 batteries. The number of times I shocked myself belies the fact I'm still alive today. I was also interested in photography. I decided the best way to photograph a spark was using long exposure on my 110 camera and a 5000microF capacitor discharging through a 240/12V transformer in reverse. First attempts not good. I needed dark. So I put the whole lot under my bed. Camera on long exposure. In those days, beds were horse-hair or something. Suffice to say, the spark was massive. So was the fire on the undeside of my bed.
Alternate title: "how to upset all of the Amateur radio operators in you city"
Yeah, isn't it illegal to build a spark-gap transmitter, or something?
lol yeah since 1934 i think
@@valdecoxib wow really? Do they mean for actual like HAM radio operation or for something like this
LMAO 😂
The reason they aren't legal to build is that spark-gap transmitters are incredibly broadband. They tend to generate a lot of harmonics that tend to cause interference.
There's a good reason vacuum tubes became ubiquitous for radio transmission in the 1920s, and unlike their spark-gap predecessors, tube-based transmitters continue to be legal to this day. Because most amateur radio transmitters using tube finals have a pi or pi-L network on the output for impedance matching, they tend to be quite clean.
11:15 I think that was rare case of GENUINE surprise electro-boom. Most spoofs and fibs are well-thought and executed skits (and one of reasons I love Mehdi!), but this one and the one where whole installation fell on him while razing sparks and bolts all over the place is where I cannot find any proof of him making things up. His reaction is also unusually strong! I'd Love Mehdi to make at least one presentation HOW he is planning his skit electroshocks, how he is taking safe measures etc. but at the other hand I'd rather not see it; as they say, true magicians never show how their magic is made!
That scream is real.
：000
I love the guest appearance from ElectroCUTE here (the last "OW!" in the segment); it really drives home how surprised they both were.
@@petersage5157 umm... what? Look at Mehdi's mouth, it was him who said that.
💢💢 I loved this experiment!!! I'm an ex-Ham radio operator General Class and followed the calculations. You have some mighty nice electronic instruments! And when you poured salt water into the Leyden Jar, I finally understood how it worked as a capacitor. The wire that you dangled from the top acted like a "brush" into the brine which acted as the second plate! I'm thrilled to have watched this experiment. Fritz 💢💢
Mehdi:
Yay Sparky fun
Every Amateur Radio operator in the world:
I felt a great disturbance in the Force, as if millions of voices suddenly cried out in terror and were suddenly silenced. I fear something terrible has happened.
hahah soo true :P
Mehdi: Fun spark gaps! Look how cool guys!
Every Canadian ham working 100mhz: AAAAAAAAAAAAAAAAAAAAAAAAAAA
@@Aquatarkus96 thats the fm band
Mike Sierra again? QRM
Ahahaaa. made ny day!!
Mehdi: Plugs in/turn on something
Nothing explodes
Me: (Visible confusion)
The fact that I could understand everything in this video makes me so happy beyond belief. I’m just starting my communications module next week and this video has sparked my interest. Thank you 🙏!!
sparked
Mehdi: *drops whiteboard*
Me: *giggles like a child*
That one was unscripted!
1:06 "Don't put your finger close to a stun gun when it's running" he says
He's sherlock holmes
BRUH
NO S@£! SHERLOCK
11:48 That stronger "oooumppff" got me cracking :D
Same
Lol
11:16 that scream is the real pain
omg
Ikk
Zilowa lmao I did exactly what he did but with a calculated voltage of around 2,400 (I think) volts DC. Holy shit did that hurt
"typical Iranian day-to-day life" LOL so true.
wow really? tell me more about it, its so sad. But I laughed out loud too
@@FIFIx30 yea, virtually everyone in Iran uses VPNs for day-to-day internet usage because many sites are blocked
@@FIFIx30 also many websites and services are blocked by the US sanctions. We are block from ether side so having VPN is mandatory. Some times I wonder the government it's self sells these VPN services to gather some budget. Our lives are funny from many aspects.
@@Shayan73197 ：０００
as an iranian i can confirm
Thank you so much for explaining this in such a simple way! Seriously, I could take engineering classes at a university that couldn't help me learn electronic circuits and functions like this.
i respect a man that even in quarantine he finds a way to communicate with us!
For the sake of your sanity, don't ever try to calculate how long uploading this video to TH-cam would take over that spark radio link, encoded in Morse...
Attila Asztalos, seriously, how long is it?
Millions of years. Just a guess.
@@AttilaAsztalos You don't have to encode it in Morse, just transmit it as binary.
@@AttilaAsztalos SD 4 month
Hd 3 years
4k half life 8
Earth: "hey look we can transmit invisible signals through EMF"
Aliens whose visible spectrum is larger than ours: "What the fuck is going on on Earth"
aliens be thinking earth on a permanent rave
Lol
Lol
Oh wow I never considered that aspect, that's actually fascinating to think about.
Your Morse capability is enough encryption. Nobody can read it ;-)
I can. I send and receive at 15 words per minute
Nice to see you here
@@adammiranda8073 s ssd yay s the game
Well at least I know the US military after Afghanistan reinitiated the program of teaching it after the Taliban started using it when they figured out nobody knew how to work it.
@@adammiranda8073 is this a hobby or do people still use it?
this video should be renamed "how to piss off your neighborhood hams"
legend says that if you run a sparkgap transmitter for 1 day straight the FCC will come and beat you with tire irons
good old days
thanks European conformity.
that'll really help keep me safe.
Not sure it is FCC in canada, but another name for this, is a wideband interference creator....
Ewan Marshall depends on whether the signal reaches the USA... surely Canada has something similar.
Translation of "wide band interference generator": AM Band Jamming
1:06, 11:16 AWWWWW SH**!!! 😂
7:17 the hell ha ha. 0 after all this.
9:32, 10:40 Scope sound
12:03 Goody
14:55 Help me.
11:45 the stronger OOHMF
11:48
😂😂😂😂
😂 😂
hhhhhhhhhhhhhh
15:10 “which you should be right now”
I feel like I’m going to get accidentally electrocuted just watching you.
lol
I like how you presented the concepts of inductance and LC resonance in a very hands-on and understandable way. I used to play a lot which such circuits. Nowadays, I work as an RF engineer for some years at a medium-sized company, and unfortunately, a lot of applicants at our company have literally no idea what LC resonance actually is, even though they apparently have studied electrical engineering. (At least my job is secure for the foreseable future)
Knock, knock!
Who is there?
Its the FCC! For the love of god, stop what you are doing. :)
Canada
LOL, yep he is Canadian, But I think spark gap generators were banned many years ago.
HAMS HATE HIM!
can you tell me what FCC is and what its task?
Shahriar, did you pick up his shenanigans in your lab or do you watch his videos nontheless? 😁
As a ham radio operator, stay the hell out of my neighborhood. LOL We have enough to deal with with all those cheap switching mode power supplies out there. A long time fan....
Cheap LED lighting is the worst in this regard... I'm running the LED lights in my lab off a 24V power-one linear supply just to shut them up.
@@H-77 just use incandescent
This was back in the socket 7 motherboard days. My dad used to complain all the time how noisy that AT power supply was 🤣
ElectroBoom, You probably know this already. The circuit at 7:36 can be used as an AC voltage dividor. Measure the voltage across the inductor and use it and the current to find the reactance of the inductor , and which is like the effective AC resistance = voltage / current. Use that value in the reactance of an inductor formula and solve for the inductance. I have used this concept to find the value of a capacitor using a 1000 hz sine wave from the earphone output of a computer, and a voltage meter.
I have a laser, audio circuit posted that I made if people want to make one.
Please keep uploading such videos frequently. This could really help during the quarantine period. A knowledgeable quarantine 😄
and fun
"And i will use the outlet earth to connect it to groud"
Sheeet, here we go again
I still cannot accept that he did NOT make some short circuit with the mains wiring this time
@@Kalvinjj What was I actually thinking while watching the vid
I thought the ground connector was harmless though. I mean, styropyro plugs his grounding strap in there every time.
come on, you know you want to r/whooosh me
@@comicsansgreenkirbynever trust an electrician to do his job right
Why the hell are there so many views but barely any likes. This man spends so much time teaching his knowledge for free for others. My man deserves more likes fellas. I appreciate you videos ElectroBOOM, thank you for all of your fun teachings.
I would’ve loved to have you as one of my professors when I was in school!
11:16 that's the loudest he's ever screamed😂😂
🤣🤣🤣🤣🤣🤣🤣
Watch the video Electroboom mustache
True, that's the loudest I've heard from him. Must have hurt him badly.
i think the microwave transformer jacobs ladder was louder
HE DOES NOT DO IT HIMSELF.DO YOU KNOW HOW MUCH WOULD IT HURT!?
When he said • • • _ _ _ • • •
I felt that
Sos
Wait maybe that was a cry for help?
Like that TV that was arbitrarily sending out SOS and had a handful of three-letter agency individuals come over and askd if any one was in distress.
@@imark7777777 no, it's only a joke for the video
Lol
ooo---ooo
"H e l p m e"
(here's the timestamp 14:52)
Great video, Mehdi! Spark gap xmitters are awesome, the very first radios along with xtal sets. This helped to save 705 people aboard the Titanic. It was used extensively in WWI and got to be quite advanced, tunable, etc. Valves quickly replaced all spark equipment, but it was still in use into the early 1920s. The Titanic's Marconi system was one of the most advanced and powerful at the time, I think upwards of 5KW of power. Every spark emits a radio frequency... turn on an AM radio and hear the noise from a light switch, an appliance running, even distant lightning during a storm.
"in a what stronger measure will the electricity be released?"
mehdi:" a much stronger OOOOMPFF!"
Then we could have the micro oompff, the kilo ooompff and so on.
Lol
14:52 he actually wrote SOS in morse code.
... _ _ _ ...
Yeah, he litterally said help me after it
14:52
Wow
Lol
11:15 God damit literally thought you was dead after that scream
Might have been the loudest so far
@@d_9696 lol
You have brilliantly condensed 5 years of electronic engineering in a 15 minute video.
I have no business at all with electrical engineering yet this is one of the few channels I love to keep going back to watch the videos.
This is why I admire Engineers very much. First an idea, then a few cryptic equations and a pen, paper, and calculator, next thing you know you're transmitting stuff across the room and probably confusing the heck out of passing birds coming back from migration... =D
Imagine rescue helicopters in his windows after he transmitted the SOS call...
That wasn't an "SOS". That was an "S" followed by an "O" followed by an "S". The distress signal does not use inter-character gaps. The nine elements are sent as a single symbol.
@@netfoot It was close enough. He wasn't transmitting long enough to be likely to have gotten a visit.
@@jonc4403it doesn't conform to SOLAS
now i can finally sabotage my neighbours wifi
Clueless people looking for entertainment: hehehehe
Seasoned hams: WHO IS THIS IDIOT I AM HEARING ON ALL BANDS?!
More like "WHERE IS THIS GUY AND WHY DOES HE NEED HELP????"
Ugh. I hope people don't start playing with spark gap transmitters.
@@jonc4403 +1000. The noise from crappy switching supplies in LED lighting is bad enough, the last thing we need is people playing with spark-gaps of all things.
@@jonc4403 Oh you're the guy I thought would be fun to piss off a few comments up.
Just once. Until the strongly worded letter telling me to stop would arrive at my doorstep.
lul
Heh, had the same thought. Though with the tiny output power I doubt the signal would go more than a few houses in every direction. Still would be annoying as crap tho.
You call hamburgers "seasoned hams"?
Thank you for that video. I am an Amateur Radio Operator and I have never seen a better example of how an LC circuit works. I wish I could connect to your brain like they did in the movie The Matrix and download some of that knowledge.:-)
I wish this man never dies I don’t wanna fall back into depression :(
Lol
11:16
I think that might’ve been the loudest he’s screamed
LOL. He yelled so loud that he sounded like a cat yelling. 🤣
What are eardrums
Got him so good he lost his accent for a second.
WOW! So much good information in one video...practical and that can be used to make something real. In these moments I am proud to be a Patreon supporter! :) thank you so much!!
Thank u sooooo much explaining why the inductor doesn’t affect the resonance of the tank circuit! I’ve been searching for weeks for that explanation!
As an amateur radio operator, I appreciate this video.
As a kid many many years ago, my uncle talked about using these when he was young. I understand it caused a lot of RF on a lot of frequencies Sounded like fun, but I did not try.
if you can use a battery, coil and transistor to amplify weak radio singals into audible tones, im sure we can somehow tap AC voltages present in the ambient surroundings..
Lol
Why can't I comprehend these simple explanations? I can grasp most other areas of science, even quantum physics, but electrical engineering and circuit diagrams just go easy over my head, regardless of how simply it is explained!
Information is Power.
Ergo, Transmitting information is transmitting power.
I'll show myself out.
1:06 had me laughing so hard
Lol
thankyou , i never truly understood how wireless tech works now you have given me the best explanation possible
"typical iranian day-to-day life"
yeah, that's how we're watching you on youtube XD
The safety of home, look a remote science programme for the kids to experiment.
Excellent vlog thanks for sharing.
Stay safe all.
Reminds me in the mid 70's as a teenager building a spark transmitter using a relay wired to make it buzz and using an old sound output transformer. When connected to a 45 metre long wire antenna it would transmit for several miles on nearly all frequencies at the same time, it could even be picked up by TV's in the UK UHF band where the screen would be covered in white random lines and the sound go crackly regardless of channel. My neighbours used to call out the TV engineers with great regularity usually blaming their TV sets, all they had to do was ask me when I wasn't out on my bike with my transistor radio doing signal checks.
where did you get a 45 meter antenna?? In the 70s??
@@citricdemon By running a wire from the house to a scaffold pole at the bottom of the garden. I think it would be called " inverted L"
You could pick up radio 4 using just a diode and crystal earpiece with no coil or vc.
@@nebojsanestorovic1416 that's crazy. what I did to your mom is also called an inverted L. Tell her I said hi
Please debunk the 5G myths, it’s getting out of hand now
yeah man so true
The virus be like: Alexa, play Christopher Cross - Sailing
5g myths need to be RECTIFIED immediately
5g caused the Holocaust and 911 and you cant change my mind
Big Clive has done a vid on the subject.
The circuit can be used as EMP generator, ajust the coil and destroy some electronics 😁😁😁😁😁
Dont give him ideas 😂😂
@@deathblazer0 yes but weak, this one has verry big Cap, I am curious what area and power could have
This guy us much better than my loda lassun physics teacher, he has taught me much more than that teacher could teach in an entire year. Thank you.
14:52
...---...
S O S
Alot of people may know this, But I guess this maybe helpful for some of you that didnt know
Not gonna lie. I rewatched the "OOWWW SSSHH***T!!" part about ten times before I could watch the rest. That was the moment I clicked Like
A couple years ago I built a few an LC circuits in parallel, powered by one of those high voltage modules in series, with a different sized variable inductors, and we had a servos which automatically sweeps through the rotations, interfering with multiple different bands at one time. My modification made it even simpler but to only run on AC with several geared synchronous motors, and once they hit the end stop they’d turn the opposite direction. It was fun.
Thank you for clearly explaining some of the concepts that my ham radio license says I am supposed to already know.
And for demonstrating the operation of equipment that my ham radio license says is illegal to operate.
@@netfoot He's not modulating anything. If what you say is true then every person or university that does a DIY Tesla coil is breaking the law as well.
@@Aquatarkus96 He set up a receiver and transmitted (what he thought was) the international distress signal using A1A modulation; Signalling by keying the carrier directly, a.k.a. Continuous Wave (CW) or On-Off Keying (OOK).
At 11:16 ohh god...by his scream...I can understand ...how high voltage he got😅😅😅
Mate, one of the best videos you ever made. I could learn tons.
11:48 ...in a stronger *OOMF*
I feel smarter just for watching even though I understood almost nothing 😁
11:16 was so classic 🤣🤣
this is the best youtube channel ever !! Big Entertaiment and soooo many knowledge !! Big respect !!!
1:11 sirens in the back
THEY’RE ONTO YOU!
We not gonna talk about the ghost that showed up in the reflection of his gold play button at 16:03
Holy Frick
Nice eye
Who you gonna call? Captain Disillusion!
WTF
Probably his wife
At 5:48 you can see the engineer working. I really like this smart guy 🔝
I love this video. It's like he just looked at his back shelf and figured "Spring Cleaning! What can I do with this stuff?!"
Incoming replies "how come comment is 18 hours old when video is 30 minutes old???"
@@purpleapple4052 answer for those people:"they are sponsors"
11:15 that was the most intense ouch I've heard of him so far
I was building one of these when you published this video.
That was one hell of a learning curve.
I wish I would have delayed 3 months and let you do all the work:)
1:05
when the bug you are showing your cousins bites you
😂😂😂 True XD
lol
11:16*
11:15 I can see his soul departing from him.
did your mobile burn
Not as bad as his homade electric guitar
Built one 60 years ago. I remember my folks having a coffee klatch and some of the neighbors mentioned their tv’s acting strange every evening for the past week. I was very very quiet, but i swear i saw my mom giving me the eye. Threw out the thing and the 1926 Popular Mechanics magazine that showed me how. Obviously it didn’t kill me, but i made up for it several times in my life...
I just realized that at the end of the video, before he starts speaking about ExpressVPN, and he says "help me" he says "S.O.S." with the tazer in morse code. Well played Mehdi, well played.
14:30 Guglelmo Marconi transmitting the first signal across his garden
Yes, but Nicola Tesla received Marconi's signals with his apparatus (and were sure to hear transmissions sent by intelligent aliens). So who invented the radio? No doubt, . . . both!
@@thempletonaart159 and then there is some russian who did it earlier but with different setup
Hilarious! I'm putting together a Facebook social learning group to help people get their Amateur Radio License and the week after I talked about spark gap transmitters, you post this video. Great minds think alike! This video is getting a share!
3:24 i don't know why but i laughed so hard :D
Lol
1:00 I was expected that 😂😂😂😂
Hello Mr Boom , you can plug the ignition coil into the mains with a standard light dimmer switch , your antenna also needs to be about 260 feet long for 1.4 mhz .
Using a variable capacitor and inductor, you have the equivalent of an AM radio. Just add a diode!
Also... By adding the capacitor you really just turned it into an automotive ignition system. Coil, points, condenser!
1:40 of course it's solved by a little percussive maintenance!
Nice job explaining Ham Radio - maybe some of the viewers will get interested in it and join the fun.
Fun video! You can also do morse code with a series of small hand grenades interspersed with larger ones. Would likely create less interference.
Your AARL Coil calculator is in inches of diameter, not exactly the same as the 60 MM you measured
as if anyone listens to am radio these days
Me: Sees 16 min long video
Also me: *Chuckles in arc gap*
I avoided this video a while but it was absolutely the greatest overview ever!
12:03 "Goody"
@Alexander Chohan So, ime mun meisseliä :)