They Sent a $45,000 Bill... Then Ghosted Us. - EMC Chamber Problems

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The lab is spending mucho money on an Anechoic EMC Chamber. What does that mean? It means a big box, it means carbon-impregnated, it means WIFI, it means FOAM. And a whole mess of an order.
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CHAPTERS
---------------------------------------------------
0:00 Intro
1:17 What we were expecting
2:36 Problems Pt 1
3:15 FOAM and what it does
5:19 Ferrite Tiling
7:03 Story Time
8:29 Making Lemonade
10:18 Making Foam Fort
12:18 Outro

[@johnmiller2905]

The audacity to send you the wrong one without even taking your money first is honestly impressive. Glad you didn't lose anything.

[@Jehty_]

Yeah, what was the sellers plan??

[@devforfun5618]

@@Jehty_ they wanted to throw it on the trash without being fined

[@dadams106]

@@devforfun5618 honestly, this is probably 100% true

[@guspaz]

If it doesn't work out to use it for other things, they'll lose the cost of disposal. Paying a company to come and take that away for disposal would not be cheap.

[@BigBadLion]

I think this is the most shocking fact of them all. They sent them something wrong, ghosted but never paid. It's just soooo weird lol.

[@dwjp90]

I actually work in an EMC lab and work with these chambers every day. If you guys were ever interested in doing a "factory tour" of a lab that does this for compliance and regulatory testing for worldwide products. Those foam cones are damaged super easily. Commonly the ones with the missing tips are the ones near the doorway and whatnot. We have a chamber thats similar dimensions to the one you ended up with, and it has about the same size as the one you recieved. Our chambers are lined with the ferrite tiles you described in the video.

[@vaisakhkm783]

he is just over reacting for the views... honestly used industrial tools means what can anyone except? a lot of employees have used it, and a lot of them maynot even have proper hygenie

[@Guitardrumr]

@@vaisakhkm783 I don't think it's overreacting to be upset that you received a product entirely different from what you ordered, which was clearly improperly stored outside, and is also damaged.

[@joemarais7683]

@@Guitardrumr its overreacting cause he didn’t practice what he preached, at all. Like it’s interesting that Linus’s advice is that when a price is too good to be true, it’s cause it is, but when he buys something that sells used normally ~100k got 45k and gets scammed, he gets all upset about the details. He went cheap, he got cheap, maybe don’t shop on the equivalent of Craigslist for equipment to put in your “world class lab” with “world class talent”

[@mrunderhooks4798]

@@Guitardrumr Especially when it cost 45k…

[@Dwivil]

@@mrunderhooks4798 He never paid them, so he got it for free

[@dbreavesgaming4534]

I'm like 75% certain that was the chamber I disassembled when I was in college working in a microelectronics lab, fun fact the dust that foam creates gets into your sinuses and makes your mucus black for weeks in the disassembly process.

[@youremom5463]

That sounds awful

[@xxportalxx.]

Sounds like the college was violating some Osha regs lol

[@sleelofwpg688]

It's almost as if they sell dust masks and respirators for construction for a reason.

[@dbreavesgaming4534]

@@sleelofwpg688 yea? Can you go back in time and tell my teenage self that?

[@VGAppSolutions]

If your mucus is black it's actually a fungal infection. Most people wouldn't suffer from a fungal infection. If it happened to you I'd suggest you have a weakened immune system.

[@mg42sd]

3:20 My dad almost DIED cutting (styro)foam like this. Don't ever do that or risk cutting one of the biggest arteries in your whole body!

[@Fredman5551]

Yikes. Thanks for pointing this out. it’s basically to never cut towards your body but didn’t even consider it when I saw it. Glad your dads ok, know that you helped at least 1 person in the world avoid something life threatening.

[@cyathea237]

had to scroll down to look for this comment because somebody has to say it

[@fuzzyhenry2048]

That's the first thing coming to my mind when I see Linus doing that way.

[@zambaretulzambitor3713]

@@maskettaman1488 i dont think you understand that concept well enough to comment

[@frostchain2362]

@@maskettaman1488 Oh shit, we got a funny guy over here. Groundbreaking wordplay on the juiciest of topics.

[@jasonahaun]

As an RF guy I can confirm "the industry is small and everyone knows everyone" is pretty accurate

[@alexha8061]

Curious what part of RF are you in? Cause while the industry is so small, the little different sectors is even smaller. I'm in LMR mostly one of the smallest lol

[@MrJest2]

Try pulsed power applied physics - the biggest complaint my last company had was the relative handful of other companies poaching employees, although we did it right back. 😋

[@TheTestCo]

Look all 5 people in the industry are here

[@The_Keeper]

" pulsed power applied physics" I... have zero idea what that entails... Particle accelerated lasers..?

[@darkshadowsx5949]

does that mean you know the guy who sent this crap foam?

[@justanotherinternetdude8847]

Hey LTT! You should sell it to Lenovo so they can add it to their foam pit for next years twitch con.

[@Incommensurabilities]

got em!

[@NickDavis19878]

LOL

[@MR_FIAT]

OOF

[@imwithyou38]

damn thats a back breaker......too soon??

[@james2396]

@@imwithyou38 a real rib tickler, as one might say

[@marksawyer6242]

Aside, from the cost of the ferrite tiles, the other downside is that it will really ruin your day when one of those decided to come loose from the chamber ceiling and fall 10 meters on to your head! We had a near miss once at work. The entire facility had to be shut down until we had hard hats for everyone to wear, and then a few weeks later we had netting installed to catch the little blighters!

[@cabe64]

I spent years working in the space industry and we had chambers with similar foam (usually significantly larger, like 100m x 40m x 40x with foam pyramids ~1m in size. The tips would blacken/smoke when testing extremely high power RF links such as geostationary communication satellites (Eurostar 3000 bus) which normally have to transmit huge distances with relatively focused beams. All that power going into the foam caused them to smoke/melt. Perhaps these foam panels were used in a similar high power chamber.

[@biomechanism1]

that's interesting thank you for shareing!

[@dave_s_vids]

I suspect it was cheaper for them to ship it to you than it would have been to pay for proper environmental disposal of that foam :(

[@jacquesb5248]

lol yes

[@MrJest2]

Precisely. It would be considered durable waste, and they charge per pound... with the price varying by material. Meanwhile, even at inflated shipping prices due to bulk (although relatively light weight for the volume), it was definitely cheaper to ship it to become "someone else's problem" and just walk off into the sunset.

[@PleaseNoMoreFarmhouseDecor]

@@MrJest2aren't most landfill items "durable waste"?

[@The_Slavstralian]

This seems like a likely situation... then bill him for it hoping that Linus is stupid enough to pay for it so they can double dip in getting rid of the rubbish and having Linus pay for it

[@james.telfer]

I'd actually be concerned if the foam was contaminated with anything hazardous - asbestos anyone?

[@danialkhir1]

Hi LTT, I am currently an RF Engineer doing emc chamber. I believe that if you look for easy use for RF Chamber you can look up Compact Antenna Test Range Chamber. You have wide range of brands to choose from, the specs and quiet zone required for the type of testing you need to do. These are more compact type chamber and wont take up huge amount of space and also portable. Depending on the type of 3GPP test that you require. You might need to also consider IFF or DFF test.

[@Lemonssssss]

I've heard him say somewhere that he wants a big one for the spectacle it provides on camera.

[@Eugen1344]

You sound smart, magic man. I will upvote you

[@bhuvangunessee]

If I remember from the videos touring the labs-to-be, he said he doesn't want a compact one if I remember correctly.

[@emojack]

I have no idea what you are saying... But ill feed the algorithm so that the ltt team can decide wether your input is valuable or not ;)

[@sarowie]

@@Lemonssssss I understand and respect what Linus wants, but I have to say: OP wants to sell Linus what Linus "needs" and is cheaper then what Linus wants. Dancing a bit around: If you can design "the perfect emc lab" you might want to have two system. One compact one as OP is describing it is both a good starter and later a solid secondary system for verification or to run two jobs at the same time. So, Linus can shoot in his fancy walking chamber, will his engineer is testing computer mice in the small one. Or the senior engineer and Linus test laptops in the main chamber and the junior engineer runs smart phones all day in the small chamber. Or he cross checks the odd "you're holding it wrong" in both to get a feel for it.

[@3dPrint_and_chill]

As radio ham I'm glad someone is taking notice of the spurious emissions a lot of devices are emitting. Despite having FCC certifications printed on their labels. You should see the mess it is in urban areas. Switching power supplies are the main culprits. I have to use a cross phase interference eliminator to operate my radio now.

[@macderadder9296]

They never did anything with this stuff.

[@BeBopScraBoo]

>ham guy >in the city get your life in order, mate.

[@khornethegrim8258]

I'm sure you were being careful, but watching you cut that foam while it sat on your leg gave me anxiety.

[@tSp289]

Watching linus interact with anything gives me anxiety, especially if it's fragile and/or expensive.

[@h.w.6563]

I cut something on my lap once and I was sure I was being careful. I now have a jeans with a nice viewing window for the scar on my leg, where I cut through it.

[@thecookedchef.recipes]

Man that was anything but careful hahaha

[@abcpea]

@@h.w.6563 i too have a pair of pants with a hole and a matching scar on my leg

[@AnInnocuousBlueCube]

I was more worried about checking if the foam was flammable while sitting next to a 'complete factory reset'-sized pile of the stuff.

[@victorpapaavp]

Kinda mind blowing that LMG is basically going to become a standards company all on their own... Ya love to see it!

[@SaNjA2659]

Imagine their approval logo being a giant wide Linus sticker

[@thorvaldspear]

@@SaNjA2659 LMAO

[@y__h]

@@SaNjA2659 "I approve your product pls respond"

[@ayoubthegreat]

@@SaNjA2659 lmaoo that would amazing

[@TheBacontarian]

If they become THE testing standard, then someone else will need to start an independent lab to test their (lmg) results

[@mx62455]

Linus testing the authenticity of the fireproof claims by straddling a huge chunk of it, sitting near the big pile, and seeing if it lights is nightmare fuel

[@StuffJason437]

Classic Linus lol

[@AZombieWizard]

Not to mention breathing in those fumes

[@brantstockamp4522]

i thought of this video when he did that kzbin.info/www/bejne/b6LLl3iZbNR4oNk

[@FlyboyHelosim]

Also using a Stanley knife and cutting towards his inner thigh/groin area. 😳

[@spotop81]

@@FlyboyHelosim that was the one that scared me.

[@Dorian803]

At this point they've actually cost you way more than that foam is worth, not in "storage fees" ( although that's not nothing) but in lost time and productivity as you chase them to clean up their mess and find a new supplier and installer. I don't feel bad for them at all if they lost money on it.

[@gorkskoal9315]

I don't thinkk he knows the notion of "sunk cost fallacy" and "put on the end of year business cost tab". I don't they ever intended to charge him they just wanted to be a ghost send him parts from a lab or something to get rid of it and that's it.

[@Shineingrock7]

I love the fact that you'll probably make more from this response video than what they charged you to store their garbage. Sounds like a win-win to me 💪

[@RN1441]

A friend went to a small technical college that was expanding in to electronic technician programs. They hired a professor to lead it and part of what he said they needed for the courses was an EMC chamber, but the college refused to use contractors that were experienced with such installations and used their general contractors instead who didn't have any idea what was required. They did really dumb stuff like cut holes for the sprinkler system. The professor when demonstrating the chamber to the students had his phone ring and had to explain to the group of students why that meant their EMC chamber was just for show and didn't actually work.

[@harrytsang1501]

Our college has countless labs. One of them directly above a lecture theater In that lecture theater, you'll be foolish to think you can get a cellular signal. WiFi works fine because there are access points in the room.

[@Blake22022]

That is an egregious act of stupidity on the colleges part. Oh let's spend 40000 on a sound proof chamber. What?? 10k to install? I think well just take our chances and risk 20 years of students having access to a real emc chamber. Wont affect our tuition prices or accreditation anyways

[@gorkskoal9315]

lol oh shit.

[@phoenux3986]

I'd say it's in no way ruthless to charge these people for storage. You contacted them 2 months ago and they ignored you AFTER sending you the "wrong" thing, it's 100% on them. A warehousing/logistics company I used to work for would've charged a minimum of $15-$20/week/pallet and that's if they were being nice.

[@PartikleVT]

Contemplating on being "ruthless" towards a scammer lol

[@CplButthurt]

I work in telecom and we are handling this kind of issue with a GC, having stored equipment in their warehouses before the customer (US Carrier) cancelled the site. They're trying to charge us $20k USD for 1.5 months storage of 2x pallets of hardware (antennae and modems/cables). Shits bonkers

[@UnknownSquid]

I'd imagine the likely result from that, would be more ghosting as they simply ignore the invoice. At which point you'd probably be forced to try and bring them to court to get actual action enforced upon it. Charging them a fee to which they didn't agree to might not hold up in court, and whilst there's surely some general fraud charge you could pin on them, it may not be worth the legal fees, time and hassle to pursue. Or maybe it would be plenty worthwhile. Lucrative even. I dunno, I'm not a lawyer. Please don't sue me. Either way, Linus is probably far more concerned with just doing fun tech geek stuff, so long as he's not actually lost anything.

[@noodlelynoodle.]

When I worked at a cabinet shop it was $30/day for storage lmao so he could easily charge at least that

[@MrBonebus]

that would make them come get it

[@andykap911]

I can’t wait until all of the testing setups are fully operational, at this rate it’ll probably be like 10 years though

[@fridaycaliforniaa236]

You basically have the same cone/pyramid shapes (but inverted) placed in the anechoic rubber layers on military submarines. They cancel the sonar waves in a really efficient way.

[@devnol]

You know Linus is good at dropping things when he manages to drop himself

[@gimubatulo]

Was a 1st time at that too!

[@Desklamp1234]

Linus can drop stuff almost as good as Mike Tyson in his prime

[@DragonOfTheMortalKombat]

Linus should do drop tests of rugged phones.

[@jceggbert5]

@@gimubatulo nah, he dropped himself in (sick) intro for the rgb build guide a few years ago

[@Iowcatalyst]

That's probably a good use for the foam, just cover the floor with it where ever Linus works the most

[@dizuko_]

3:23 Dude... I have seen so many 'dissected' legs from people using knifes like that... I love you Linus, please never use a blade like that on your leg!

[@zukabazuka]

I did just that some weeks ago, 7 stitches and it was a clean cut. didn't go deep luckily but 2 weeks to recover and now a nice red scar on my leg.

[@inzemix73]

Felt the same :( Had to stitch people for less…

[@Flugpappret]

Saw that as well, hot dang I shivered.

[@27Zangle]

Thought the same thing.

[@augustusguap228]

yea i jumped a bit when he started. did pretty much the same just with my arm

[@Beary98]

The style of this video, the sciencey talk, the almost Mythbusters like quality of parts I dig it, definitely looking forward to lab and lab enhanced videos

[@WhiteVaille]

Holy shit, all that testing sounds so exciting. I wish I had relevant industry experience. I'd be thrilled to be a part of LMG and contribute in any way I can.

[@trackman07]

Wow, DBrand is really taking these pranks to another level.

[@jorelc6]

this video was sponsored by DFaom ....😁

[@thesocker7920]

Im not up to date with dbrand what has happened?

[@Frizzy9000]

@@thesocker7920 TL;DR they are very cheeky with LTT. Had LTT build them a very huge unnecessary pyramid computer and changed what they wanted done on purpose several times just to mess with them. Bad LTT publicly said how annoying they were being (all in fun mind you). I suggest looking it up, pretty funny overall

[@bruwin]

Make sure if you ever have to send that invoice you include the number of your lawyer, of which all further contact will be going through. If you're going to go ruthless, go full ruthless. They committed fraud, and were dumb about it. Or were smart about it because I suspect this was the only legal way for them to cheaply get rid of their garbage.

[@doc4153]

Unless they threaten LTT with a suit, there's no reason to get a lawyer involved. It's not that serious.

[@Joseph-C]

This was a garbage dump for sure. Otherwise why wouldn't they have just listed it honestly? Nobody with enough money to buy an entire RF shielded ROOM wanted that old abused trash. They had to scam somebody into taking it off their property in order to get rid of it.

[@GojosBackHand]

@@doc4153 yes the fuck it is. Paying $45k for getting the wrong product and a damaged product at that. That seems serious to me.

[@Narxes081206]

@@GojosBackHand but LTT didn't pay, it'll cost more for attorney fees than the free foam they received.

[@PhysicsGamer]

@@GojosBackHand That's the weird bit... apparently LTT didn't pay anything. Consensus seems to be that the seller just... didn't want to pay to dispose of this stuff.

[@websterleone]

You can get cheaper ferrite tiles, but you'd probably be better off with cones that just have a lower frequency cut-off. They also make hybrid absorbers that are a combination but a lot cheaper that doing it separately. As for using the foam as stuffing for an audio chamber, make sure the cavity between the walls isn't to act as a resonance chamber, because if it is, having foam touch both sides would make isolation worse, especially if you really pack it in.

[@gorkskoal9315]

Clay and adobe tiles my man. especially armed earth adobe with mesh inside along with the coans blocks a lot of rfs I don't know the reason why clay blocks RFs so well.

[@sarathkumarsio]

i worked on these testing facilities. it is real fun playing with EM and understand their workings.

[@collin5353]

As an EMC engineer, this is really exciting. Also surprised you didn’t touch on the metallic shield room the foam needs to be inside of. The shield room provides your actual faraday cage blocking outside noise from contaminating your test setup, while the foam mitigates reflections.

[@ericbaker8807]

As a fellow Engineer who does a lot with RF, I was also expecting them to touch on the actual chamber itself EDIT: Also, the amount that they're TOUCHING that carbon black foam is making me so uncomfortable lol. That shit is impossible to get off you. I DO NOT touch it when in the chamber haha. If I recall from a safety video I had to take, Carbon black is actually a carcinogen. It should not be touched whenever possible and should be handled with gloves at all times.

[@hene193]

Most likely the sponsored future video covers it

[@fitybux4664]

@@ericbaker8807 it's only a carcinogen in California. Luckily, they are in Canada. 😆

[@bipbop3121]

@@fitybux4664 hey, knowing all the products I buy with a prop 65 warning is ___. I saw that warning one time on a food product, though, Wish I could remember what and was like wtf, nooo. It's one thing to sell some stuff that you can handle with care and buy in moderation. How is carcinogen in food or even kitchen stuff legal? Is even more fun when it made in California, but comes with the warning.

[@MegaBanane9]

@@bipbop3121 Red meat is also a carcinogen - but that rating is just about how proven the effect is, not how much you'd have to have contact with to experience effects - or how big those will be.

[@jockrocks7392]

Oh jeez Linus, it's people like you who are the reason why I have to sit through "knife safety' OH&S videos at work.

[@fredericapanon207]

@Jock Rocks, yeah, I had a flashback to knife safety at summer camp so we would avoid slashing our femoral arteries open while whittling wood.

[@YukonWilleh]

today I cut my femoral artery ! was a possible video title

[@gorkskoal9315]

lol

[@mkyn-tl5oc]

No you have to watch those because somebody probraly accidentally stabbed a coworker once

[@iamjurell]

What, people who do things successfully with no physical harm to literally anyone? Weird, I would've thought it to be the people having harmful accidents.

[@s1ubbe]

Company I work in bought one of those used for ~150K. The urge not to jump around in the expensive spike bouncy castle is irresistible

[@sonycans]

When I worked for Monash University in relation to the CSIRO when there were this experimental devopment for wireless networking in the late nineties the Dean of engineering asked us techies to build an RF anechoic chamber for this newly developed wireless networking. It took is months and we used the very same foam however we painstakingly glues aluminium foil over the cones and it worked perfectly. You should do similar Linus.

[@SoniasWay]

“Corporations are a liar sometimes” And that’s not a lie

[@dairiskuznecovs7233]

"sometimes" yeah right probably meant all the fekkin time

[@Costelad]

*BONG* bell sound

[@mycosys]

The concept of giving a pile of money a legal identity as a person, immunising its owners from any debts, and legally requiring it to make as much profit as possible, is just freaking insane. But we (very recently) decided to base our society round it for some reason.

[@galvendorondo]

IS. The board said corporations is a liar sometimes

[@jamess.2491]

@@mycosys yep, and that's why (most) everyone now has a car, smartphone, laptop, electricity, running water, etc. It has its pros and cons, and public ownership of a company is a lot better than some of the alternatives (in a free market).

[@khalilahd.]

It’s insane to see how far you’ll go for the sake of tech. We appreciate you so much! 😊👏🏽

[@kai_444]

you're literally everywhere 💀

[@jaughnekow]

Is it me or do I see you comment in almost every tech video I watch? 😅😅😅

[@arian6565]

shut up bot

[@ben-hn2ek]

I saw u in another video too like on a time management video I guess 🙂

[@jaykob1]

Pull that d*ck out of ur mouth

[@jmi967]

When you do get a chamber running, you should test the bad foam in it to see what damage causes what issues

[@ThatBlackGirlMagic]

Ok. I didn't know that I needed this but you completely scratch that Blues-Clues-style-kids-show-from-the-90s nostalgia itch.

[@alexoja2918]

You should send them a bill for extended storage. Might even turn a profit 😂

[@ericmueser6950]

You can't get blood from a rock

[@baseballjustin5]

@@ericmueser6950 unless it's a skull-rock :)

[@alexoja2918]

@@ericmueser6950 The only commonality between a rock and the company in question is their competence.

[@michaeld_aus_b]

9:48 that is what he said

[@alexoja2918]

@@michaeld_aus_b Yeah commented before that

[@AyyyGabagool]

linus and his writing team are amazing at turning failures into full videos

[@BOBAGENTSMITH]

Turning Ls into Ws

[@LegendaryMike]

This was a win win for them. They now have new contacts to work with and they made the money, they would have spent, back in just a couple of videos. Not to mention that the foam and framing are still useable for another project

[@godslayer1415]

it is a tech parody site - of course they do

[@craig933]

@@BOBAGENTSMITH Turning L's into LTT's

[@TwentyGX]

@@BOBAGENTSMITH Winus Tech Tips?

[@kedo]

man. when I stumbled across LTT in 2017 I never once expected they'd turn into the company they have today

[@Ro7ard]

2017 lmao? It's barely changed since then...

[@nigel-uno]

2017? They were already a huge channel by then. Stop using comments to advertise yourself.

[@Shalominati]

I've never been so concerned for someone's safety quite like when Linus was cutting downwards with his leg as the cutting board for the foam lmao

[@brada562]

Rarely comment, but came here to post exactly that. I was physically squirming in my chair as he kept increasing his exertion with the blade stuck in the foam. Line of fire, Linus! I damn near cut off my ring finger (at the base, no less) back in college via a similarly unsafe use of a knife - blade suddenly moved, went past the thing I was trying to cut, and straight into my fingers.

[@Shalominati]

@@brada562 yeah I’m a long time listener first time caller but it needed to be said 😂

[@lewiswhatley687]

I was looking for someone else to point that out lol. If the knife let go suddenly and it was angled towards his inner thigh it could have severed a vein or artery

[@fietsbandje]

Yeah, that was hard to watch. You really don't want to get a big cut in your inner thigh. It's a quick way to bleed out if you're unlucky

[@barry.w.christie]

I once did this sort of thing, although I was pushing the blade away from myself ... the blade slipped and went straight across the top of my inner thigh on my left leg ... brand new blade sliced clean through the denims I was wearing! I just sat there in shock waiting for the blood, but luckily it only lightly scratched the skin instead of slicing through my femoral artery. Needless to say I now always pay close attention to how I'm using a knife/blade and ensure that it cannot possibly come anywhere near me!!

[@LinkFelton]

Please, PLEASE, if they ask for it back send them a storage invoice. That would be freaking amazing. 100% something I'd do lol

[@barence321]

Yes, sir, that'll be $45000 for storage. Hmm? That's right, we kept the stuff inside our building. What? Keep it outside? What kind of idiots would do that? OH.

[@leekelly2203]

It actually happens a lot more than you think. Especially in the industry I work in UPS's

[@charliegolf2730]

@@leekelly2203 Similar things happen in the construction industry, not just with storage of someone else's stuff. A earlier job I had constantly invoiced the electricians for cleanup since they would not do it themselves. Then, they suddenly did.

[@johnjingleheimersmith9259]

I imagine it would be hard to legally legitimize $45k worth of storage fees in a warehouse that is seemingly empty most of the time, and also spilling the beans about your plans to do so in a public video. Legalfail.

[@williameldridge9382]

@@johnjingleheimersmith9259 you would be incorrect. They would be entirely within their legal rights to do so. Not to mention the shipping costs of sending it back. Now as far as the $45k? Yeah, that's unrealistic.

[@YHRS]

I'm not sure that I'd pack the walls of a double-wall structure with that super dense foam, if you're going for soundproofing. The density of the foam, especially if compressed (i.e. packed) into the wall, might essentially couple the outer wall to the inner wall, which defeats much of the purpose of a double wall for soundproofing. That purpose being dampening the transmission of lower frequency sounds from one room to another. There are some studies out there looking at ideal stuff to put inside a sound dampening wall (2 single or double layer gypsum walls with an air gap in-between), and regular old pink insulation ranks really highly, believe it or not. That super dense foam would make great material for bass traps in the corners of your sound treated room though. Treating the wall/wall, wall/floor, wall/ceiling corners with several inches of that stuff can make a real difference in the dissipation of audible low frequency reverberation in a room. But I think that EMC foam is so dense that flat surfaces of it would actually be reflective at higher audible frequencies. That's the one (and only) place where those cheap foam panels off of Amazon can help out: absorbing higher frequencies.

[@bleeb1347]

You could buy a ferrite powder like a cobalt ferrite, and mix it in with something like a rhino-liner liquid and roll it onto a surface, then mount these panels. You’ll achieve about 75%-80% of the effectiveness of the ferrite panels at about 5% of the cost. Still not cheap by any stretch, as a 12x12 room would still be about $20,000 USD. Edit: Powder, not power. Lol

[@akaraven66]

$20,000 for a full room compared to the $45,000 they were going to pay for the actual picture listed, yeh that's not a bad deal.

[@KJ4EZJ]

What is so special about the ferrite panels and powder? What if they bought the magnetic paint they sell at Lowes. That's ferrous, wouldn't it work similarly?

[@max2themax]

@@akaraven66 That's not the 45 grand room he's talking about, it's the upgrade that's talkes about later in the video. 1.7 million would be an estimated cost of the ferrite tiles to line the walls of the room. So from 1.7 million to 20k is pretty darn solid.

[@bleeb1347]

@@KJ4EZJ it depends on what your trying to accomplish. Ferrite panels prevent waves from passing on both sides, to answer your question. Meaning no waves coming from behind the panels will make their way to the front of the panel on the other side, and Vice versa, truly isolating the room from outside waves. Second, ferrofluid, as I’m assuming you’re referring to, is not that dense. You could use it as you’re describing but you can’t dilute it very far and have reasonable results. Ferrofluid is the same as a ferrite powder, but it’s already suspended in a fluid making it less dense. In this case you’d have to use so much ferrofluid in the RhinoLiner fluid that the RhinoLiner may not perform it’s intended chemical reaction of hardening and expanding. The reason I suggested RhinoLiner and not paint is because of the thickness and it’s own shielding capability. For example, I’ve used RhinoLiner under the carpets of cars for noise reductions, because the composition of this material already blocks many sound and radio wavelengths. By adding the powder to it, it will retain its hardening and expanding properties and have the added benefit of the ferrite material. There are even cheaper ways of doing this, for sure, but it depends on how much you value your time. Lol. In my opinion this is the quickest way to do it “cheaply.” If you wanna get really scary, you can use giant steel sheets and turn them into gigantic low power electromagnets, then spray RhinoLiner on that. But then you’d have a potential fire hazard every time you “switch on” the chamber. You could also look up one of many online tutorials on DIY faraday cages, which are also VERY cheap to DIY with shower curtains, aluminum foil and cloth, and then you mount that to the walls and spray with RhinoLiner. There’s many ways to skin this cat, but I think Linus had the right approach in trying to obtain one that was pre-built with actual measurable data to back it up. Any one of the ways I recommended would require you to put in a LOT of work, which Linus intended to bypass by buying something pre-built. His time is probably more valuable to him than we value our own time, hence the direction he went. Very cool video either way. I may make a video of a miniature faraday box using the method of ferrite powder and rhino liner just to showcase how quick and easy it really is, and how effective the results can be.

[@KJ4EZJ]

@@bleeb1347 Thanks for the explanation. So does a traditional Faraday cage made of a fine brass or copper mesh not block the same (long) wavelengths that ferrite panels or similar do?

[@patschgo]

Looks better and safer than the foam pit at twitchcon xD

[@Outland9000]

Big oof.

[@ganon8835]

braindead zoomer

[@eduardoarancibia169]

Good idea, they should sell it to them.

[@MD2389]

Clearly they couldn't find the ball pit from Dashcon! ;)

[@xnexgax2477]

@@MD2389 ya nasty

[@TheRoben]

LTT is on such a big growth spree, love to see it. Would appreciate a European version of your store though, the import fees etc are just too much.

[@ctlc]

As someone in the RF industry in Canada can confirm it's a really small world. Really looking forward to some of these tests once you get a proper chamber built.

[@joedittmar7985]

Linus cutting the foam downwards towards his leg had me sweating for a moment.

[@utrak]

Relax.

[@Spit823]

That’s just how he is lol

[@SteveHupe]

It’s only his femoral artery… That’s not important!

[@NatEff3ct]

How about taking a lighter to it with the assumption that it's fireproof?

[@elishaeisen4321]

Came here to write this

[@MaybyAGhost]

"Corporations IS A LIAR sometimes." Truly a philosopher of our time

[@likebot.]

Yeah, it depends upon the particular day of the week. Corporations usually only lie on days that end in 'ay'.

[@JackBaker954]

It's a IASIP reference

[@johns8364]

Aristotle, Bitch. Google, Bitch, Galileo, Bitch. Apple, Bitch. *applies bitch sticker*

[@saltysteel3996]

I don't miss doing radar testing in one of these chambers. I hated that blue foam because it flakes and crumbles apart when it starts getting some age on it. Creates FOD in a Class 3 aerospace test chamber.

[@JB-ym4up]

You should make a giant spike pit with the foam blocks.

[@dag3451]

amazing to see the testing/standards you guys are working to uphold in this industry, what you're working towards is much needed in this space for consumers. can't wait to see it all unfold in a few years time. cheers linus and team

[@XionSteel]

If i was to guess, they were already paying out the ass to store all the damaged foam and it would cost too much to dispose of it since you cant do it through normal means, so they just went and dumped it off on the first person who'd take it and disappear. You likely will never hear from them again.

[@Satsujiin]

Cant wait to see a continuation of this project

[@R0w4nH0pk1ns]

ah yes, Linus is finally teaching us how to be thrifty when we get sent the wrong RF isolating room.

[@PhaTs00p]

If life gives you a shitty RF isolation room, you make a lemonade room out of it.

[@Algernon7]

I hate it when that happens.

[@chickenrules1043]

Omg 3:18 I swear that was where you sliced your main artery in another universe... RIP 😲

[@ericwhitney8277]

I love watching Linus almost cut a gash in the side of his leg while cutting foam.

[@arthurtapper1092]

I would say your got yourself a secondary smaller chamber, as a lot of that foam seems to be perfectly fine. I worked as an EMC engineer for a couple years and have seen anechoic chambers in pretty bad shape with some pretty rough paneling so although it isn't the quality you paid and expected it is still very useful (especially since it was free!!). Not to mention and as your probably already know too the majority of the isolation from the outside world is the metal/faraday cage surrounding the room and therefore like you mentioned the foam paneling is just for reflections within, so regarding the last bit, although isolating yourself in the foam fort was a nice demonstration of it's properties it's not intended for that and just goes to show all that foam still works. I would say your doing yourself a disservice if you DONT end up making a secondary smaller chamber.

[@bland9876]

This guy sounds like he knows what he's saying but I'm not smart enough to say.

[@roowut]

make a chamber inside another chamber

[@VedranBucko]

@@roowut chamber inception

[@BlueCollarBachelor]

So Canadian RF nesting dolls?

[@A99OT]

This is correct. Those foams aren't nearly as bad as he's making them up to be. And it what really matters is the application.... what tests need to be done and what results need to be gleaned... generalizing like Linus is, isn't too helpful. To be fair his audience probably doesn't know better anyway, as the RF world is tiny, and test and measurement ever more so.

[@thetruemorg]

This feels like every HVAC contractor I had to deal with. They knew every one in the industry locally. It got to the point that every time I, or my boss,found something used online: I would send the info to a contractor plus $100 Target card just to get the real deal so my boss wouldn't decide to buy used HVAC stuff. Good job making lemonade out of lemons from a decade ago

[@Huntorix]

I always like how ltt videos look on my iPhone it fills the screen as much as possible but doesn’t have the annoying notch showing

[@Demo12345]

Dude, you got all the parts to build your own highly sound dampened room, I'm kinda jealous. I wonder how quiet it will be when it's assembled, I've heard stories of special chambers that when you walk into them you can't hear your own voice.

[@jaketus]

"We paid $45,000" "We haven't actually wired the money for this" Choose one.

[@thejusmar]

It may be in escrow

[@KLienne]

Well, he did say corporations lie, didn't he ^^

[@Sup1mSam]

Yeah, today's title annoyed me a little. They've been using Clickbait titles for a little while now, which I can't blame them for because it works, but todays title is just plain lying. Still love their content, but I hope they don't start following the trend of twisting the truth so much that it becomes lying.

[@alexisrivera200xable]

They chose the clickbait of course. That said they did try to sell the stuff fraudulently to Linus so he is free to say whatever at this point. Whoever did this probably wanted to be rid of the stuff as much as it wanted to make money off it. It's great Linus didn't pay in advance.

[@apildk]

The video was fine. Glad they did not wire the money but there is no the click bait.. shame

[@TechfulThinking]

The anxiety of watching Linus struggle to cut foam with a razor *towards* his leg/groin 📈😱

[@GamingBadly2000]

I KNOW! I was like "He's lucky he lives in Canada because that injury would cost him every cent of $45,000 in the US!"

[@ge2719]

@@GamingBadly2000 well, considering how many important things are in your legs he'd have been lucky to not bleed out there in a pile of foam he didnt order.

[@5nowChain5]

Yvonne would then say, "Oh, cool you got a DIY vasectomy, but does it still work down there? And How much is the EMC/A&E going to cost the company?"

[@Peron1-MC]

i mean he was like half a foot away from his leg. incorrect use of knife, yes. in any danger of slicing himself, no...in this case. i could definitely see how it could be dangerous tho since he cant see his leg.

[@TechfulThinking]

@@Peron1-MC When you’re struggling to cut through something, whether due to the material you’re cutting, the blade sharpness, or a combination of both; you’re more likely to have an accident. Could’ve hit his leg, slid his hand down the handle and sliced his hand, or even fumbled it into his midsection. That was risky, though, no matter how you slice it 😉

[@dustinwright272]

This is crazy, my company last year or so ago moved locations and we built a new EMC chamber. This legit looks like our old stuff!!!!!!

[@N0xiety]

Did your company happen to have contractors pick the old stuff up for disposal? That would explain this situation.

[@Yasen6275]

5:25 In 10 second Linus refutes all quantum mechanics.

[@goldfingerdash]

$45,000 is great deal if you got what was pictured. I have spent many weeks in EMC chambers testing products. Some of the chambers I used are well over $1,000,000. The hourly rate to use these chambers can be $250 or more. I hope your engineers like EMC testing as most do not. It is like watch paint dry if you have no issues. It can quickly becoming very challenging when you have issues. It is going to cost a decent about of money every year to keep your equipment in calibration.

[@kh-ro5su]

there was no deal here. someone needed to dispose of a shit load of beat up, stained and old foam and their answer was to hopefully trick someone into buying it as that would have been cheaper than proper disposal lol

[@cronos6400]

That animation at 5:30 made my physicist heart cry :p .

[@mawsoncasey7347]

In RC aircraft we had the problem when carbon fibre airframes started coming out it would block are antennas so we had to have multiple antennas mounted on the outside when with balsa or fibreglass we could mount one inside the fuselage.

[@ValentineNTT]

4:55 😂 gotta love these sneaky merch ads

[@BishopWhoozle]

It's weird seeing the same foam that we use at my aerospace job in a LTT video, but it was actually pretty informational for me since I see it around a lot but since they are not in my department, I didn't know the use. Very cool!

[@Metalpug79]

The scammers scammed themselves. "It’s a bold strategy Cotton, let’s see if it pays off for 'em." 🤔

[@kenabi]

alternate; it probably would have cost them more to dispose of it 'properly' than it was to ship it to someone, and they considered it a win even if they didn't get the fast payment.

[@JackPitmanNica]

Apparently its pretty normal for those foam things to be broken and messed up. If you look at footage of the USA military anechoic chamber you can see that loads of the tips are broken or damaged. But they still use it for military testing anyway!

[@TsoLIt]

Linus you gave me an anxiety attack cutting that foam like that... WTF MAN YOUR HAVE A MAJOR ARTERY RIGHT THERE

[@jimmysoncookland5446]

This is incredibly interesting. I can't wait to learn what comes out of this. Especially routers and phones

[@drcyb3r]

It's really funny, the same thing happened to the company I work at. They got a wrong model of monitors delivered some years ago and the seller never wanted them back and never charged money for it. As he also never responded, the company decided to call them scrap and gave them out for free to the employees. The time between the delivery and them calling the monitors "scrap" was about five years, so the monitors were kind of old. I think they just had HDMI. But they were still usable.

[@daredaemon8878]

Yeah I'm fairly sure something like this is just the result of the sketchy company not wanting to pay the costs of disposing the stuff, cheaper to just ship it to some rubes.

[@GamePois0n]

the way linus was handling the knife gave me a heart attack

[@jasonwu2758]

Just wanted to note my Stealth Hoodie arrive safe in Melbourne, AU. Thanks Nick! And never be afraid of re-use/re-purpose. The planet has enough crap going on without us dumping more crap (literally) on it. Onya, crew.

[@Uleyra]

Im just happy someone is finally holding companies accountable for all this bullshit they've been pullin

[@L39T]

No cap

[@bodhisativaa]

Definitely. Linus Team is a god send

[@extreme123dz]

Hope the first one is Steam and ALL OF HIS BULLSHIT TRASH GARBAGE SCAMS!

[@davidesp00]

Linus is a consumer like everyone else, and he wants to use his platform and resources to hold the companies accountable for the bs they tell everyone.

[@TheAssirra]

@@extreme123dz what are you talking about?

[@lordkell1986]

Love the concept of incompetent scammers. They send you their bogus product but then forget to collect the money and then are too embarrassed to try again 😂

[@Thermalions]

Quite competent actually. They got rid of a whole heap of worthless junk for the price of transport, instead of having to pay the price of transport and commercial dumping fees. Of course maybe they had the stuff in the first place because someone did the same thing to them - which might mitigate that competency assessment.

[@DanishValkyrie]

"Hey, I can get rid of this junk for you if you pay me x dollars" Proceeds to not sell it but gets rid of it and gets the money through other means most likely

[@ragreen2]

"Simulated ruthless business guy" cameo ... priceless!

[@yurr7408]

That carbon electron field graphic represented energy levels, electrons don't slide smoothly based on the energy in the system, but they nearly instantly jump or fall to appropriate energy levels when the system reaches the threshold.

[@user-kd1ho9bu6g]

Omg I literally puked on that emf chamber foam while I was delivering it to you and seeing you roll around in it was hilarious 😂😂😂

[@Masterbest16]

FYI, a sound wave is not an electromagnetic wave… @4:05

[@lexnastin9011]

I think he used "like" meaning "similarly to", rather than giving an example

[@jonnysmith549]

My heart stopped beating for a second when Linus cut the foam directing the knife to his leg. That could have been a nasty injury O.o

[@mf1ve]

@@user-in2mb8dw7i Begone BOT

[@crsoccerfreak19]

I got very nervous as well.

[@Veovis5]

And it's not like KZbin would allow the footage so it's not like he'd even get any views out of an unpleasant ER trip.

[@ploof1012]

Mans literally almost sliced his femoral artery. Would have bled out in minutes.

[@thomasphillips885]

@@mf1ve report and move on

[@kinstar]

Looks like they just wanted to get rid of all that old foam so they sent it all to you for free lol

[@TheRipeTomatoFarms]

The foam documentary that I didn't know I needed! 🙂

[@CrescentX3]

I’m only a few minutes in and this already looks insane! I’m super excited to see how different devices stack up!

[@maxcharacterlimitreache-]

I'm only few minutes in and already panicked while Linus was cutting foam towards his own leg

[@ElectricEvan]

I spent +13 years as a research engineer in a hearing/head an ENT (ear, nose, throat) hospital. This story totally fits. I never got this screwed over by a dealer but I have totally been rescued by chamber installers. FPA Solutions is my favorite.

[@dot_dot_pwn2650]

Dude I watched a video where this kid lit fire to one little foam panel or roll and it literally burst into flames in seconds catching all of the other foam on fire and burning down the entire warehouse, definitely shouldn't have just to a lighter to it considering this company sounds pretty shady

[@saltysteel3996]

They were cellulose rolls, super flammable. Wasn't foam.

[@skillzhg9598]

3:26 Thank you for showing us the Foamussy Linus. Much needed LMAO

[@xZeroGrxvity]

EMC absorber can wear out and degrade! Especially when touching and moving them. Good absorber have a thin layer of sprayed rubber on them to protect against degradation.

[@Verlisify]

3:20 wow, Linus was really close to passing the LTT Store Return Policies off to his wife

[@megacandid8789]

Oh man I know right, so much cringe...

[@LordRae]

Cutting right over a major artery is a big yikes. Especially with how clumsy he is.

[@tomn55]

Always use your femoral artery as a chopping board

[@MrPaulpost]

Linus did you not realize when you cut into that foam you barley missed your leg. You made me flinch

[@SpearM3064]

His leg was much further away from that foam than it looks in the video.

[@mrqwibz9678]

that knife swipe towards your leg was gold

[@grayfox9000]

3:19 had me worried Linus was going to slip and cut open an artery! Don't cut like that man I love your channel too much to see that happen!

[@kyleshelton1636]

I'd love to see you guys doing sound testing for differences in audio codecs, amps, dacs, headphones, speakers, and everything else audio.

[@jacobvarley5453]

Totally not good channel and that's not a small short video, that's like years of testing and millions of dollars. Studio quality mics are thousands each and anechoic chambers are expensive as fuck and take time to build.

[@kyleshelton1636]

@@jacobvarley5453 LMG has the financial oomf to take a crack at it, at the very least as an end consumer perspective. Plus, they could tour other facilities. They don't always need to build their own.

[@guerbie7312]

Haha Linus testing our anxiety levels with his cutting skills.

[@choapy7493]

Not only that but next thing he does is try to start a fire.... while sitting on a pile of potentially combustible materials.... I mean fair its not supposed to burst into flames but It was also supposed to be in better condition too lmao

[@CanIHasThisName]

And I absolutely love how the tools here are already jumping on the bait. Nothing funnier than pissing off youtube safety inspectors.

[@CanIHasThisName]

@@choapy7493 There is no way they didn't try that before the video. He's going off of a script.

[@choapy7493]

@@CanIHasThisName lol you know I kinda get that by the fact that he happen to have a lighter prepared. Its joke on how linus always wonder why nobody trust him around power tools and such

[@RayneDr0ps]

Who really needs the artery in their leg anyways. LOL

[@jweezy15able]

I know in the USA, depending on state residence, if something I left in your residence for 90 days and you can't get ahold of the owner than you claim ownership by default. If it works the same in Canada, than you just got that foam for free. I'd definitely inspect that stuff for bugs before installing it anywhere since it was outside for some time.

[@Bulldog22031]

This is a "Never Argue with a Man Who Buys Ink by the Barrel" moment...

[@ML-fc3je]

Been following LTT since their days filming in his house and it's amazing to see how far they've grown as individuals and as a company.

[@Ben.N]

Fr

[@stenmin1234]

Pretty sure they didn't live in that house. They just used a house as an office/studio, until the government found out.

[@ML-fc3je]

@@stenmin1234 lol was like middle school or highschool so I thought linus lived there either way my b

[@PhilfreezeCH]

We had one of those with the ferrite stuff in an old bunker about 5m underground in a place I used to work at. Pretty fun just standing in these things, kinda surreal.

[@Idiomatick]

The most surreal has to be Neutrino detecting chambers.