Dave & Electroboom - The Amp Hour

Episode #562 of The Amp Hour:
Podcast available here: theamphour.com/562-electroboom/
The Amp Hour on KZbin: / theamphour
Mehdi from the Electroboom KZbin channel joins Dave to talk about his hobby and professional background, and how he got started in Youtubing. Along with moving to Canada, the Iranian hobby movement, Maker spaces, commercial spaces, Linus Tech Tips and the infamous conflict between practical engineering and theoretical physics in electricity vs magnetism in his stoush with Professor Walter Lewin.
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[@bigclivedotcom]

I thought the Jacob's ladder scene was faked with a foot pedal to kill it. I didn't realise that it was real. That was a very close scrape. The number of people who have died from microwave transformer contact over the last few years is staggering. The main peril being that at such a high voltage an extremely high current will flow and the galvanic isolation defeats the ability of a GFCI or RCD to detect the shock current.

[@3v1Bunny]

the ladder scene had some intense "oh I fucked up this time" look in the eye frames .. I always doubted if it was real but if it wasn't he should have been an actor XD

[@wobblysauce]

Yep... He got really good at acting today.

[@spacemanbowkonami]

There are so many "mishaps" that happen in his video's that you take for granted that once in a blue moon it was not intended that way. Whichs trigger my curiosity to ask the same question to you: have you had any close shaves in your videos but did not let it be known? I assume battery material catching fire was not scripted? Are there others?

[@omniyambot9876]

It's true

[@omniyambot9876]

Also, why bigclive isn't interviewed.

[@Adamisgood24]

I seriously have so much faith, in both of my electronics heros being here, sure means something!

[@ivegotheart]

That's what she said

[@Thesignalpath]

I tried to make my videos funny by shocking myself, but then I destroyed the input to my $100K spectrum analyzer...

[@vgamesx1]

If it's any consolation, that actually makes me feel better because I recently bought a broken camera lens and my hand slipped, breaking it further by ripping the main connector flex cable, so I've been a little bummed about that, but that's absolutely minuscule in comparison to damaging some expensive/complicated equipment.

[@WilliamCirillo]

Ouch! ... :(

[@Moises505130]

@TheSignalPath hey I really like your videos!

[@pabloibaceta5932]

Oh shahriar You make My day 🤣

[@MikeJohnMentzer]

Two legends in one frame! Can't thank you guys enough for your contribution to electrical and electronics

[@dj_laundry_list]

You could make short clips of this show, around 4 seconds long, and call it the milliamp hour. I'm sure it would be just as electrifying

[@MikeJohnMentzer]

Lol🤣

[@martinkuliza]

indeed. WHY IT COULD BE GREASE LIGHTNING :P

[@brunobohrer3756]

or 4 frames and call it picoamps

[@johncoops6897]

Those clips could be called "SHORTS".

[@martinkuliza]

@@johncoops6897 Mindblowing... who would have thought

[@felixar90]

Yeah that Jabob's Ladder moment still haunts me. I was wondering if you were gonna talk about it.

[@ratbag359]

I had so many people try tell me he faked it.

[@jabari.n]

timestamp?

[@richardeadon6396]

Reupholstering the chair was one of the most entertaining videos for me and there's no shocks in that. It's just Mehdi's personality.

[@kriswillems5661]

He sounds like a very humble and sympathetic man.

[@sallowsandy]

Omg!! Couldn't stop smiling at this, two of my heroes!!

[@DadofScience]

"You can't really blow anything up or get shocked with logic gates, right?" - Challenge accepted!

[@km5405]

medhi will find a way

[@treelineresearch3387]

Discrete IGBT logic with kilovolt logic levels!

[@michaelmoorrees3585]

@@treelineresearch3387 - phft ! HV regulator triodes & thyratrons. 5KV minimum.

[@namuzed]

Nice hearing the background of how it all started!

[@getyerspn]

Hi from a UK viewer massive fan of both you guys been watching for many years .. I've shared all you're channels with my fellow engineers electrical and mechanical...thanks for all the years of entertainment and at the same time thanks for encouraging/inspiring the next generation of engineering talent... you're both legends now....and as for the Jabob's ladder ..dude that was one of the few moments on youtube that made me swear out loud ..you are one lucky man Mehdi ...mind you I've had my fair share of brown trouser moments ...any EE who hasn't have certainly not worked on industrial equipment.

[@VIPINSAINI_20]

It's amazing to listen both of them together, chatting and stuff, thanks

[@pim]

Awww Mehdi-boom, you're such a remarkable human. Thanks for your channel, I really liked seeing this interview side of you, full of goofy humor, candor, and overall happy content and presence. Dave: thanks for taking the time to interview Mehdi and giving your unique and thoughtful perspective on both the content and the championing of Mehdi's approach. I love your style (and your main channel).

[@EdsynProducts]

Nice to see two of my favorites together in the same space! Great job Dave! You always bring out the best! Mehdi is a great teacher too! He makes learning fun and easy. Take care you two!

[@Aybex97]

The long awaited episode! Thank you guys, I really enjoyed it

[@LasseHuhtala]

I totally relate with Mehdi about the language thing. I can not for the life of me use Windows in Swedish, which is my native language, because there are so many weird translations and newfangled words which make no sense to me. I always use it in US English.

[@AndrejaKostic]

Same for me! I'm from Serbia, and when the Windows became popular, we had a civil war in my country, and the default what everyone used was Windows in English, plus US English keyboard (I've seen ONE factory-made keyboard in Serbian Cyrillic in my whole life, and it was some IBM new-old stock, which I immediately purchased). After a while, local terminology sort of came into use in technical circles, and it was mostly based on derivatives of English terms. Afterwards, came the push to translate. The "professional" translations used in say MS or Google software or similar have little to no relation to what people actually use, and I have the feeling that it's mostly because the translators want to have a product they can charge for, even if they don't really know how the target audience speaks, and even if they don't really understand what it is that they're translating. We have similar situation with books as well. Absolutely the worst are auto-translations being pushed by Facebook and Google. They very often use completely incorrect terminology, create huge amounts of context from nothing (because it's not there in the original text), and I'm forced in practice to try to guess what the original text would be in English and then try to understand it. It's basically like the Monty Python's "Romans go home" sketch, except 100 times worse, and quite often, there's no way to turn if off!

[@kevin42]

Samma här

[@SvenRognelund]

Japp! Håller med!

[@mike5058]

terrific video - I could have listened to you 2 talk for hours!

[@keithminchin1817]

Really enjoyed this one. Great conversation. Thanks to both of you.

[@VanCan]

Pretty cool to learn that my supervisor at SFU also supervised Mehdi!

[@bobwhite137]

Each of you make the world a better place. My most humble thanks.

[@chetangp]

Two of my fav youtubers in one video. Loved it.

[@susmittayade4643]

Finally .. a long awaited video !!

[@unforgiven818]

absolutely brilliant could listen to you both chating all day, hope you do it again 👍

[@lasersbee]

I think this is the first time I watched the whole Amp Hour... Very interesting to see ElectroBoom just chilling with Dave.

[@sirousmohseni4]

Good listen while working on a project. Thanks for the chat guys.

[@rtronicslab1253]

One of my best interviews....thanks Dave....

[@maukaman]

Two of my favorite professors from KZbin University! When my mother was helping me build my solar system and household wiring I would put on Electroboom videos to help her get over her fear of electricity while learning the basics. Your entertaining teaching style helped calm her anxiety and it was fun and educational for us both! Great interview, guys! Thanks!

[@hollybrereton3140]

It's OK guys, the are some of us girls who follow you too

[@martinkuliza]

I reckon if Dave's wife knows that girls follow him he's gonna get in trouble, although i don't reckon he minds if they do LOL as for Medhi, he is the founder of THE MILE LONG UNIBROW CLUB lol, it takes a certain women to handle Medhi Actually WOMEN... i think it takes like 5 or 6 women at a time, all holding tweezers 1 in each hand, standing side by side and they tweeze away and those big bastard for some reason women love tweezing men's eyebrows I get the shoes thing i get the shopping thing i don't get the tweezing thing

[@psydemekum]

I started building little things with Arduino and such after I learned the basic electronics stuff from EEV and after watching ElectroBoom I'm now confident to tackle more dangerous electronics like a Jakob's ladder. Never got a shock! ElectroBoom is always in the back of my head, screaming and electrocuted, so I'm always beware of that and stayed safe. THX to you both.

[@AUSonic2644]

Just gonna say this. Be careful ok:)?

[@kennethlazo940]

This is one of the most interesting to listen to, the feelings behind the teachers that thought me everything i want about E...

[@GonzaloCobos]

Very enjoyable video, thanks to both for it!!

[@MacVision3D]

Been watching dave from the start and later Electroboom you both have keep me alive in some bad times thank you both very much .

[@rubusroo68]

awesome collaboration

[@martinkuliza]

Can we appreciate the fact that Medhi knew that this interview was important SO HE TOOK THE TIME TO TRIM DOWN HIS UNIBROW................... The mark of true respect from one E.E. to Another LOL

[@ShR33k]

My two favourite KZbinrs!!! Love both your channels.

[@kavehsarkhanlou8608]

Two of my most favorite youtubers. Dave for teardowns and Mehdi for Shocks :D

[@milandjukic88]

Two geniuses finally together! I Can die now! Thank you guys! 😊😊😊

[@ParsMaker]

very interesting conversation, thanks both of you for great content and effort

[@Graham_Wideman]

Oh for heaven's sake. The Lewin controversy is based on him omitting from the circuit diagram the inductors/generators that account for the magnetic field coupled in to the circuit loop that's part of his apparatus. It's trivial. He might as well disguise a battery inside of one of the wires and claim "oh look, KVL busted"! It's a sleight of hand. In other words, part of the "ideality" of the model that is a schematic is that the "lines" that represent wires don't have any inductance per se, behave as zero ohms and so on. If you add a varying magnetic field in the neighborhood of the actual physical circuit, then you have to add inductors and magnets (essentially a motor or generator) to the schematic to represent the physical circuit properly.

[@johnalexander2349]

Yip. From what I remember, Lewin's entire "anomaly" can be summed up as bad probing technique.

[@nwfalls]

Agree. Whole idea of circuit diagram is to make things simpler, not to confuse. But Dr.Lewin teaches physicists, not engineers. And as a scientist you probably should be good at sighting things that aren't obvious. And this KVL-busted-thing is just a seed of critical thinking in joung minds of students.

[@rk99688]

He lost respect in my eyes after Lewin's videos questioning Mehdi's education and being an ass. If you look at Mehdi disagreeing with Steve Mould on the chain concept they were being professionals and handle it like real intellectuals. Similarly, with a professor disagreeing with Veritasium about moving faster than wind they again were professional and we got to learn so much and they settled it without being idiots.

[@Intermernet]

@@rk99688 Agree completely. I've come to the conclusion that true academics *love* being proven wrong! The scientific method is about removing the things that can be proven to be untrue. The set of things that are untrue is practically infinitely larger than the set of things that are true, so scientists should be prepared and willing to be wrong a lot more often than they're right.

[@PafiTheOne]

@@johnalexander2349 Mehdi summed up this way first, and it's totally false. Physics describes reality, not prescribes it. Lewin applied KVL properly, and it failed. If you had read Feynman's physics book, you could have realized that KVL is applicable only if some assumptions are fulfilled. To be specific the loop path must avoid (changing) magnetic fields. In this circuit this is *impossible* in *any way*. You can not say it was bad unless you define a good way. Mehdi have tried it, but his method is wrong.

[@jstro-hobbytech]

I love when Dave has guest spots on videos and they show his smiling noggin and he says HI! it cracks me up and brightens my day. Haha

[@MikeTechnology]

Well that's interesting nice to see you both talking how you guys started out

[@Adamisgood24]

And I'm welcome to you both electrical engineers!

[@kikihobbyrepair]

It was nice to see the 2 smartest electrical engineer KZbinr talking. I love and learned a lot from both of them. 🙂

[@ayitsyaboi]

Oh my, this is wonderful.

[@mr-meek]

Never clicked so fast... thanks guys!!

[@SkeletonSyskey]

Two of the Greats on the same video

[@vinzzbe]

Electroboom Ethernet packet explanation is his best video!

[@gmonkman]

Get Thunderfoot on as well for an amazing debunkathon ...

[@VeraTR909]

Nice and honest interview.

[@chuckbrown617]

Kits are a great idea. I especially wish that Paul at Mr Carlson's Lab would offer his creations in kit form.

[@stephtronix1811]

Ya, that would be awesome!

[@Spellitlikeitsounds]

I wonder if Mr Carlson would allow someone else to create the kits

[@anuragmahajan5919]

You guys are awesome!!!

[@tank1572]

To 31:10 regarding the change of deffenitions. I am currently a EE student in Germany and we got taught voltage as an energy related unit. Our professor did but a lot of emphasis on that definition, so we would not understand voltage as a potential difference, wich comes down to be the integral over E*ds. That was actually taught in second semester more as a way to calculate voltage. But we also learned Kirschoffs voltage theorem rather than law, it was than slightly changed to accommodate for induction in second semester.

[@CrazyMan_Engineer]

I am still watching. I started with his electric guitar 🎸 video.

[@Yupppi]

No way. KZbin knows what I like. I can't believe I get an amp video AND electroboom. My wet dream. Mehdi has a brilliant point. This is the way it usually goes when you watch something: "Oh that's how it's done, nice and easy I'll just follow this - what why isn't it working, it works perfectly for them?" then you spend days figuring it out searching internet franticly until you find some explanation. Things always go wrong and what you're really interested in is what could possibly go wrong and how can you troubleshoot and fix it. Same for the dangers, you don't think about most of them until you experience them or someone tells you about them.

[@mohalothman99]

Tow legend are talking. Big respect!

[@gmonkman]

@37:30 So good to hear you guys say this.

[@666aron]

Thanks for yet again an amazing video. Speaking of maker space. For a long time I dreamed of "making" one, since I mostly have the equipment for a startup. My problem is that I have nearly zero management knowledge, and I tend to overthink things. BUT I am aiming on changing that as soon as I finish my PhD degree, which wasn't such a bright idea in retrospect.

[@Steve-wx1gk]

I would realy love to see a video involving Great Scott, Dave and ElectroBOOM. That would be soo cool😁

[@stevedaenginerd]

1:04:02 I eagerly await this video!! Lol I gotta say, thank you for putting this episode on #2 or else my dumbass wouldn't have put it together that your podcast is on KZbin also! 🤦‍♂️🤓

[@johnsmith-tr3dh]

Dave's a very good interviewer

[@Lucius4992]

The one who shows a lot of mistakes in electronics, and the one who can't stand them. It's amazing to see both of you in the same video.

[@hammalaminehaiballaelbakay4396]

Very plesed to see two of m'y best Electronic teacher

[@sonicfuker]

Love Electro, he's an inspiring dude and legitimately funny.

[@machinemoron]

this is fucking awesome! more electroboom and eevlog talk please!

[@MrHmm-cv6gs]

56:35 Here in india, there are entire markets dedicated to electronics in major cities. Btw fan of you two, I leaned op amp and rc circuit from EEvlog in my diploma times. Man that was very much help to understand circuits.

[@gcr100]

Awesome, BTW, when are you inviting Marco Reps???

[@gigigigiontis8]

+1 for that

[@WurstPeterl]

Make it +2

[@janzizka9963]

Mehdi is a master of making people laugh and then secretly educating them without them noticing to get bored... 😁 Should be inspiration to teachers.

[@TheHarpanOnly]

Thanks, Dave...

[@durexyl]

"A bike ride away" :D could be very far... Thanks for another great vid!

[@sidneykantor]

Medhi seems like such a nice and down to earth guy.

[@MazeFrame]

The Shorts format may be perfect to quickly explain simple formulas related to electronics.

[@Sailingon]

My favorite electronics KZbinrs 😊 life if complete

[@DavidLindes]

1:08:50 - I'm not one of the two, but I noticed (when wanting to click through to find his video disagreeing with Prof. Lewin) that the links are missing. Something to fix up?

[@ERKNEES2]

great vid dave!

[@Theineluctable_SOME_CANT]

Two tuggers together! Marvellous...

[@nathanial7249]

One thing i love about electrical engineering is that there is lots of shocking jokes

[@puriap250]

FYI that street is still there and is still awesome. There are a lot of online shops too. I personally usually shop online cause it's cheaper. The shops are not as big as digikey for sure but you still can get most stuff.

[@Bullfrogerwytsch]

Awesome amp hour.

[@Cracktune]

great content

[@dwaynezilla]

Oh damn! Yeah a rolling loop of video where you can hit a button or whatever, and it dumps to a drive would be neat.

[@g0fvt]

A fascinating session, and a reminder to us all that microwave oven transformers are potentially killers. I personally had a very close one with a high voltage supply in an RF amplifier I was building. I was super careful, disconnecting the mains supply etc, what nearly killed me was unplugging the wrong thing before delving in. The Walter Lewin experiment was extremely confusing to me, the demo was very flawed IMHO. Both scope probes sharing a ground, and voltage induced in test leads etc.

[@lodevijk]

Mehdi is a treasure, he's such a lovely guy

[@phonzy]

ElectroBoom's 1 million subscriber video incident was genuinely so scary.

[@dtibor5903]

Hi, production test engineer here. I validate and maintain the test stations in production, all kind of docs, support debug. Sometimes I develop less complex test stations.

[@mamalala8723]

Is there a version without all the jumpcuts? Unfortunately, the amphour site doesn't work for me. And for some reason, the jumpcuts in the vido are really irritating me. Thanks, Chris

[@Miata822]

Good stuff.

[@mattrichardson4351]

Omg this is awesome

[@jstro-hobbytech]

I tried to build a makerspace for others with mental health issues but it fell through. I couldn't get all the gear I wanted and then had a break in and lost most of what I had. I have a separate structure on my property that used to be a cabinet makers shop. I bought a fortune worth of arduino stuff to give away, 3 3d printers, a homemade cnc machine I was going to build and 3 workstations built along with about 30 rolls of pla and guitars and amps for free lessons and take home ones for people. After the break in all I was left with was arduino stuff, 3d printers, no guitars, no work stations or monitors and all my measurement gear like dsos and what not smashed on the floor along with every drawer of parts I had hanging on the walls tipped over. Thousands of components were all over the floor, tens of thousands. I had cases filled with different led types for people who wanted to breadboard or practice soldering. I had one working iron left, a hantek dso that doesn't function properly anymore , bench psu that had to be hammered back into shape and repaired, also 1 cracked monitor. Insurance didn't cover anything really. Having mental health issues myself it took me months to sort everything out or get any sleep. I'm just starting to get a small workshop in my house together to rebuild confidence in myself to pick a project and finish it. I collect logic chips and had tons of projects breadboarded to show how different gates work and all that was thrown around. To add insult to injury thr first day I started cleaning up a courier arrived with over 1000 cd4xxx family ics I had ordered. I bawled my eyes out when I opened the package. That was septemper and I just fi ished my first project since then. I had no one to help me financially as I was waiting to renovate the space and put a new bathroom in myself this spring. I had central air already installed for paint booths if people wanted to paint a 3d print or anything. I have boxes full of arduino supplies that I don't know what to do with and I've advertised free learning kits. I had to get this out as I know nobody I know will see this and I have to get it off my chest once in a while. Great video Dave and medhi.

[@AlienRelics]

A fantastic present posted on my birthday! How did you know? 😁

[@MrLunithy]

Bloody awesome.

[@dhpbear2]

6:21 - and "Don't Whiz on the Electric Fence!" :)

[@Ormaaj]

Wow I had no idea TAA was on youtube. Double digit views on this one already!

[@pauloalex4899]

My God, a dream come true.

[@widar28]

When it comes to physics you could invite Dr. Matt O'Dowd from PBS Space Time for your next talk that would be an awesome conversation :D

[@DanBurgaud]

MEDI!!!!!!!!!!!!!!!!!!!!!!!!!!!! My favorite Iranian! FYI: My electronics prof is Iranian too. He was my favorite prof too back in my college days. He got me into electronics!

[@DavidLindes]

14:58/15:04 - ring buffer camera with post-trigger memory dump required! :)

[@cactusheart9632]

Would really like seeing Dave + Mehdi + Shahriar (The Signal Path) + w2aew having a conversation

[@zedcarr6128]

Something going bang or letting the magic smoke out is a rite of passage for EVERYONE in the industry. Grabbing hold of 500 Volts DC in a bank of capacitors in an inverter is one of my most memorable experiences as an EE. They were just charged up after I'd Meggered them, the inverter wasn't powered up. I still don't recommend doing it though, a DC shock is horrible, and I think it's worse than a shock from the mains.

[@dwaynezilla]

Nah. The falling Jacob's ladder thing is why "a falling knife has no handle" exists. Catching stuff is something so automatic and basal in us... don't beat yourself up over it. It's basically reflex!