EEVBlog

[@AJ-kj1go]

Cuts toward himself with a giant knife "I know what I'm doing" Punches himself in the face opening bubblewrap "this is bloody dangerous"

[@Nordic_Mechanic]

+Aj Koorstra If you ban knives, ban pillows !

[@Jacklsovakia1]

Don't worry, he's a professional Australian.

[@BenjaminGoose]

+Aj Koorstra Don't worry, he's a brick dunny.

[@pwnedbyscope]

+Veikra New Jersey has already banned a number if knives pretty much anything with an assisted opening is illegal, as well as being a felony to own one=(

[@Nordic_Mechanic]

pwnedbyscope Cause banning them means criminal will follow laws and get rid of them. Nice thinking lol

[@DeanHerbertMooCow]

The earth wire is a very common thing in Japan. All home appliances use it. You need to manually screw it into the wall socket.

[@EEVblog]

+Dean Herbert Woah, really?

[@timothylamb7861]

+EEVblog bfy.tw/4HOY ;)

[@infinity306]

+Dean Herbert used to be that way in us early I believe, til we modernized and added grounding prongs. probably around 60-70 years ago.. LOL

[@donpalmera]

+Dean Herbert Home appliances like fridges, washing machines etc usually have a separate earth wire that goes into the frame and needs to inserted into a screw terminal under the socket. Stuff like air conditioners have a proper 3 pin plug that goes into a 3 pin socket... and then power leads for monitors, computers etc have that dangling wire that's meant to attached to the same terminal as the one for washing machines etc or a 3 pin plug but the sockets that are not for air conditioners up on the wall or in the washing machine/fridge bay never have that terminal or are 2 pin so the connector has a plastic insulator.

[@drkastenbrot]

who would even come up with that. stupidest system ever

[@KB1UIF]

Dave that box must be the latest "See Moss" device. Sorry couldn't resist ;-)

[@ZomB1986]

The Tektronics code is: -Up/down: binary (LSB first) '00101010' = ASCII 'T' -Thickness: '00000011' = ASCII '♥' -Spacing: (maybe I'm over-thinking things) '000 111 00' = '8' (not quite 'K' as I hoped)

[@jamesgrimwood1285]

I live near Leeds! :-) I want to see a spoof mailbag where you open your actual mail... "And here's a bill from my electric company." "Oh we've had one of these before, it's a piece of junk from the local pizza place" :-)

[@Jeff121456]

+James Grimwood Guess you missed the lingerie mailbag.

[@ThatLinuxGamer]

+James Grimwood I live near Leeds too! In York, like Leeds only smaller and better. Yorkshire represent.

[@titangaminguk105]

Yorkshire is definitely represented leeds ftw

[@turboslag]

+James Grimwood I used to live near Leeds too! In between Leeds and York actually, for about 10 years. Loved the place, I may even go back to live there.

[@sickparrot3]

+James Grimwood Do you remember M&B Radio down by the station? the holy land of surplus electronics.

[@uwezimmermann5427]

The different shades on the VFD segments is not only wear but also different coloring. If you have a uv flashlight you might actually see the different emission colors through the glass...

[@pbp6741]

"I'm Australian. I know what I'm doing." ... Hits himself in jaw.

[@jalexge]

It looks like the "code" on the shirt at 23:21 is a binary representation of the number "42". The stripes on the top are 1s and the stripes on the bottom are 0s, giving 00101010, 42 in decimal.

[@rish2891993]

The first guy in the world to say " bubble wrap is dangerous" XD

[@GreenAppelPie]

Definitely needs safety warnings printed on it

[@draggonhedd]

Hi Dave! For the VFD, I don't think they're discolored, so much as different colored phosphors! If you find a picture of one of these displays in action, every section has a different color when it's lit up. You should power-on test it!

[@KennethScharf]

The VFD segments may be multi colored, and that's why they look strange.

[@hubmartin]

+Kenneth Scharf Exactly my thoughts. Sad that Dave did not tried turn that thing on.

[@imdeadserious6102]

if you look you can see an obvious set of 3 colors (gold, silver, copper/bronze which I'm guessing are either multipliers or just a higher value set depending) and then where there are single digits that are (basically) always on have a more off-color then the same color ones in the corresponding row/column depending on what section you are looking at. (Kind of surprised save didn't mention this but did mention the LEDs)

[@nixietubes]

Yes...

[@ratdude747]

The first one's ground wire in the plug isn't tied to the plug contacts, but to a ground wire in the cable. The idea for these (and also the compatible 100VAC Japanese plugs) is that the wire has a ring/fork terminal that is attached to the screw on the outlet cover. I've seen this on old appliances (washing machine, etc.).

[@built2last31]

hackaday sent u some good California weed lol

[@stonent]

We still use an Etherscope like that, but I think ours is an Etherscope II but looks very similar except it has a compact flash port for data storage as well as pcmcia. It runs Linux and can do cable testing and you can put in a wifi card as well. It can do impedance testing of twisted pair wiring, wire map, some signal loss, time domain reflectometry for cable length and distance to damaged or shorted cable. When you're running tests the relays are clicking off and on, probably connecting the wires to the FPGA for testing before switching back to that broadcom chip . You can also do network capture for offline analysis.

[@TheVespap200e]

Dave, you really need to sharpen that weapon that you use to open your mail! A dull knife is a dangerous knife! 😀

[@power-max]

There appears to be about 1500---2000 pixels in that dot matrix on the VFD. (32 vertical counted)

[@KingNast]

It was 64 columns, so 2048

[@SudosFTW]

I have one of those D-50s in really rough shape. I've superglued the plastic window back on and there's dings and scratches everywhere. it got really beat up when it was in storage and Hurricane Sandy came through and destroyed the shed it was sitting in with a bunch of my other stuff. Good to mention in the teardown you do for it that it uses the same analog circuitry to an extent as their first actual retail CD player on a smaller scale... this is why it cost so much when new. Mine still has the 9V battery pack that uses C batteries, and the 9v wart is... someplace.... but I can power it off any of them so long as I make sure it's at least an amp. I got mine for $20 in box at a yard sale back in 2009, looked just like that one. but mine has a datecode of october 1985.

[@DoRC]

Damn that etherscope is still a legit tool and is worth quite a bit. I wonder how much trouble that person got in for taking it.

[@DoRC]

I'd kill to have that in my premise kit:)

[@0toleranz]

+Kenny Downs yea, me too :o

[@somethingelse2lookat502]

Great mailbag! I actually pop popcorn for these. I had that original Sony disc player when it first came out. Installed it in my car, Skipped with every tiny bump. But it was the only game in town so it was still real cool.

[@abpccpba]

I have been to a Pachinko game room. This one was at a train station complex. Men sitting at a machine smoking cigarettes. The large room was full of dense smoke; could not see the back wall.

[@loughkb]

I just sold my old D50 Discman on ebay last month. Had the battery holder/carry case with it too. Sold for $45.

[@dhpbear2]

I'm guessing the VFD elements are are different colors not just blue (when lit)!

[@naota3k]

"I know I'm cutting towards myself, but we Aussies come from the southern hemisphere, so we HAVE to do it that way."

[@b-rentareilly8204]

The different coloured segments in the VFD are exactly that, different coloured segments when lit.

[@GreenAppelPie]

What with all the ranges on the sound level meter? I purchased on for work for simple testing, we needed to verify a 70db beeper, any there wasn't any range select, just on/off.

[@Graham_Langley]

+GreenAppelPie It probably auto-ranged.

[@GreenAppelPie]

Well yeah, I'm just wondering why that old one had like 60-70-80-90-100ish ranges. It just seems so archaic, even for the time. I'm thinking I might've missed something.

[@Graham_Langley]

+GreenAppelPie Remember that dBs are logarithmic, so in order to get decent resolution at the bottom end you'd have to vary the gain before rectification. The analogue meter one has a linear meter with a logarithmic dB scale. This digital one will have to do the conversion electronically.

[@CoolerQ]

Dave, why don't you get a nice big high-res LCD to mount on your wall, so you can tell what the HD video will look like while you're shooting? Or even just a little portable monitor? (e.g. Blackmagic Video Assist for US$500)

[@cullenwilliams2911]

So I don't mean to complain, although I feel like your videos have been lacking in the content section lately. Your video are almost always either Teardowns, Reviews, or Product Debunking. You haven't done a real "recent" Electronics Project based video since EEVBlog #744. Honestly that's what attracted me to your channel and electronics originally was your project videos, we are engineers and we live for building new and interesting projects. Not that I don't like your other videos, but I think you've lost the best part of your channel by not doing the project videos anymore. Other Electronics VBloggers are doing projects at a much higher ratio than you. Can you please rectify this injustice?

[@EEVblog]

+Cullen Williams Other bloggers channels were not built upon the same diversity of content as mine was. If you haven't noticed, my teardowns and debunkings are incredibly popular, much more popular than tutorial style videos, like by a ratio of 3:1 or more in many instances.

[@cullenwilliams2911]

+EEVblog I get this is a business based on views and subscribers. Although maybe sometimes it can be about what you think is cool, interesting, or fun? We all like Debunking shitty products, and opening new products to see what's inside; although I could be completely wrong (and apologize if I am), but I think maybe your core viewers including yourself also loves taking on new projects just for the joy of engineering. In the end this is just one opinion, and you know what's best for the channel. Either way the blog will surely continue to grow, my argument is to simply present this point of view.

[@TestECull]

+Cullen Williams Iono, I rather enjoy the content he's doing, though I wish he'd dismantle some more dangerous and/or poorly made products found on eBay directly from China. Deathdaptors and the like.

[@frtard]

+Cullen Williams Well, since someone else already said it, I might at well say it too. I'm definitely on that boat. What ever happened to fundamental Fridays and such? Just because they're not as popular, doesn't mean that there aren't people interested in seeing them.The power supply design series was incredibly useful. I figured I'd see more EE and less stuff like build quality critiques on something named 'EEVblog'. There used to be, and that's why I subscribed...

[@MichaelDreksler]

+1

[@deeplightstudio]

The reason why the slash wasn't colored on the front of the shirt is because that's a "button logo" so basically it's just a simple black & white rendition of the logo wrapped in a circle

[@deeplightstudio]

And as far as the code, I assumed it was binary (there are 8 lines total) assuming bottom row is 0 and top row is 1, you get 00101010 which is decimal 42, or the ascii character * (asterisk)

[@Cornet_Tooter]

"I'm Australian, I know what I'm doing!" I'm sure Steve Irwin said the same thing :(

[@ricoswave2326]

The Radio Shack analog dB meters were ubiquitous back in the day. You couldn't walk into a studio or lab without finding on in a drawer. They actually weren't bad for roughing in. The digital ones were crap though. We ended up purchasing a terrasonde toolbox (?) when our RS analog unit went MIA.

[@groovejet33]

I especially like the Reverse Engineering videos, and the scope videos because Daves so knowlegable about these things. EEV is always the first subscribed videos i look for when i sit down on a night after work. Yeh Bloody Ripper!!!

[@TilmanBaumann]

I wonder why those orange caps in the network analyser have those little pointy noses. Are they supposed to do something, for soldering perhaps? Or are they perhaps just some result of some production process?

[@Graham_Langley]

+Tilman Baumann They're tantalum caps so they need something to indicate polarity.

[@TilmanBaumann]

Thanks. That makes sense.

[@dennissmithjr.5370]

Love your channel Dave, my 8 year old boy watches with me and now walks around saying, "what a bobby dazzler". Thanks for your channel!

[@jacksat2252]

Couldn't that yellow color on the white back be from nicotine (cigarettes)?

[@unclebarry78]

That was my first thought.

[@DuzzExor]

From what I saw of pachinko places in Japan the last time I was there, it being from cigarettes is very likely.

[@Jeff121456]

+yasim delzeyne Except that the darkest spots were around lights that were most likely on more often, like the top LEDs.

[@antsgamingvideosn2b]

Been reading about the Joey in this month's Silicon Chip. A very successful KickStarter project!

[@CaptainCheezmo]

That Pachinko data counter... I don't think the VFD display sections are discoloured. I think they're actually *coloured* Like green/amber/red.

[@MatMabee]

Dave! Have you gotten any old CB radios for your teardowns? I have an old Sony ICB-1000W CB radio made in 1976 I'm thinking of sending in. Shipping will cost an arm and a leg because I'm in the states, but I'd really like to see a teardown on the sucker.

[@EEVblog]

+Mathew Mabee Tore own two in a video not long ago.

[@OsmosisHD]

The network analyzer by Fluke. Could it be Jtagged and loaded up with PFsense linux firewall OS? It kinda looks like a full embedded x86 barebone assuming it has 2x 1Gbit LAN ports. Would be pretty sweet. a compact firewall with its own LCD screen build in

[@IanTester]

+Osmosis Firstly, he already said the SoC is a Intel Xscale. That's ARM, not x86. Secondly, I doubt it has direct access to the Ethernet, or if it did you'd have to write a device driver for it (perhaps even loading something custom on the FPGA to get access). Good luck getting info out of Fluke and/or reverse engineering it. In the end it's just not worth it. Much cheaper and easier to get something from RouterBoard.

[@SelinicaHarbinger]

I think it's pachinko parlors. I'm pretty sure the external ground lead is also a thing that is still around in japan, like the grounded to two pin adapters that were common in the US. I've got one of the machines, but it sadly lacks a cord of any sort, just a jack on the back for power in and I guess something out.

[@marcusbuchner1615]

Nice VFD there. Anyone got an Idea why you would want to keep heating these all the time? Because that's what my stereo does, wasting power on standby. 8W for nothing. But when I turn it completely off and on, its there nearly instantly, so I dont get the point.

[@muh1h1]

can someone actually explain the difference between a capacitor and a supercap to me? because i know they have a much higher capacity/volume, but i have no idea how they achieve that. Is it a specialt technology or just lower tolarances but the same principle?

[@robertkilbourne323]

Utica is in what is called 'Upstate New York' as opposed to 'New York City' which is at the extreme southeast corner of New York State. NY state is actually quite large and shares the border with Ontario, Canada at Lake Erie. Utica is directly east of Buffalo, Rochester and Syracuse.

[@cjs1982]

Dave: The RadioShack VU meter from the looks of it dates back to the late 90s or early 2000s. I remember selling these. glad we discontinued it; the analog one was better.

[@ahobby]

That magazine helped me remind myself to convert my IEEE spectrum magazine from the digital to the print version. Thanks :p

[@ChristopherMeadors]

The code on the shirt is binary, 11010101. In decimal that's 213. Likely a reference to the Tektronix 213 oscilloscope.

[@WreckDiver99]

How I miss my HP 41-CV (same as the CX without the RTC). Unfortunately the keys died a horrible death...I had the memory card, equation library and one other card (can't remember). How I miss it. *sigh*

[@PuchMaxi]

Dave, watch out on the Sony D-50 Discman! It appears to have a center negative pin?!

[@DatBlueHusky]

that fluke etherscope thing is worth $1500 lol

[@etechguy1009]

Worth it mate. ;)

[@NivagSwerdna]

+30GB So someone takes an asset from work they don't understand and send it to Dave to tear apart. Face palm.

[@grame141]

+30GB Hey, did anyone see the Fluke etherscope from the store room? It's gone missing...

[@billa8671]

i think Emma got her ass fired for that one

[@ramrod126]

You got Utica right. I live fairly close to there.

[@nickguy6820]

About the FPGAs in Ethernet test sets: You want something that can generate packets at line rate (1Gb for e.g.), and receive them, generate CRCs / checksums, and track statistics. That's a LOT to ask of a CPU, much less an embedded processor. FPGA is really the only reasonable choice.

[@ethanmye-rs]

No way the color LEDs produced UV, unless they were originally UV leds, which is unlikely. Can you pull one off and test it?

[@ollopa1]

This would be a part of the machine as there is one per machine. It would be mounted at the top of the machine.

[@GoldSrc_]

Yes, I would love to see a teardown of that CD player, that one should have one of those big ass pick up laser. My friends think I'm weird because I like CD players lol, the older the better and more interesting to see them working.

[@ILoveFreeBSD]

a small typo in the video description you wrote Sony "M-50" Discman instead of "D-50"

[@Node7]

The Tek t-shirt is 00101010 which is 42 in decimal. A reference to The Hitchhiker's Guide to the Galaxy.

[@christopherguy1217]

That HP-41CX is exactly like the one I have and still use! Just keep a supply of N cell batteries to power it. The HP-15C I have is probably the most ergonomic calculator ever produced, you can operate it very well holding it in your hands with just your thumbs, I guess that's why they command hundreds of dollars on eBay.

[@ChipGuy]

XC2V1000: AFAIK back in 2005 that was a $1000-$2000 class FPGA. Now obsolete, but 1 million system gates. Big beast back in the day. WOW.

[@DjResR]

Japanese has electrical system with separate thumb screw terminal for earth connection that is planned to be replaced with American system. Also their gaming place could had blacklight (UV-A) lighting in use, I don't think that red LED emits UV that much.

[@drkastenbrot]

The TX logo is a very good design, certainly fits into the modern style. But the customers sure prefer the old one.

[@RCTanksTrucks247]

"several sucks of the sav" LOL, love it mate

[@dishmanw]

+EEVblog The first programmable calculator that I had was an HP 33C with an LED display. It was a nice rugged calculator.

[@crustyHO]

14:22 Best soundclip from EEVblog yet!

[@Coolkeys2009]

Was all the stuff sent in dead, would have been nice to see the stuff power up if working.

[@mikehorrod4367]

Nice fluke hot bar reference. The signal paths recent video in mind?

[@EEVblog]

+Mike Horrod No, I've done a video repairing those before.

[@L337g4m3r]

I don't know why but while seeing that I thought about the line "that's not a knife, THIS is a knife!". Even the accent matches...

[@jergenmehyugen9065]

That Hackaday puck looks to be a sealed Terrarium. As long as you keep it with some light it should stay green. It's a little self sufficient ecosystem in the palm of your hand.

[@EEVblog]

+Jergen MehYugen Oh, cool. So sunlight, unlike in my lab!

[@AndreasA.S.]

discolour, maybe smoke, the segments dont look worn-out, maybe they are just different colours, doing a search on google images kinda shows that ' "win-view" sangyo '

[@thebad300]

it is a legal loop hole to gamble and the earth ground is common it takes the place of the 3rd prong and screws to the outlet american game show had a giant version called plinko

[@cdsmith]

So if you want to get your item on mailbag faster send it to Dave in a giant box so he opens it first to clear shelf space. :)

[@novcze]

these white relays in network analyzer could be latching relays, worth salvaging imo

[@RaimarLunardi]

Fun fact: EEVBlog is the only channel I see that has videos 720 and beyond with 50 fps... (instead of 30 or 60)... I wonder Why?

[@Anonymouspock]

+Raimar Lunardi look it up, PAL.

[@RaimarLunardi]

Ohh, I see... In Brasil we havê Pal-m that is 50 hertz too, but 99% of electronics are imports, and are 60 hz... Thx

[@zaprodk]

Dave, too bad to see that VFD almost destroyed :( Could i take it off your hands for my collection? I could power it up :D

[@bellshooter]

The Sony Disc Player was awesome, shame you didn't get the battery pack/case as well. I remember buying one of the first shipment to arrive in UK, don't remember the date just that I gazumped one ordered but not collected from a high street store in west London by flashing the £300 ish cash wanted for unit including battery case.

[@WaltonPete]

"...all their social media channels and all that sort of wank." - love it!

[@I_T_T]

"I'd rather you actually have a new scope... that it's actually fast and responsive" Ouch :-D

[@4n0nym0usly]

+EEVBlog, Dave I'd like to see you do a video on what you do with all your e-waste in Australia.

[@Pieh0]

20:42 Official Hackaday Weed, 420blazeit

[@AluVixapede]

1:55 I prefer to think it's time and date display for their very own time machine. AE86 + 141kph = Drifting, though time? p.o

[@DrakkarCalethiel]

It's almost 1 am in Austria and I should sleep... not with me! Not before I have seen the new mailbag! :D

[@Antebellum1860]

Wow! That is one impressive knife; it's almost bigger than you are. I'm not complaining mind you, I am simply impressed.

[@mcconkeyb]

Unless designed to do so, LEDs emit very little off frequency radiation. The discoloring is most likely due to plasticiers out gassing under the heat of the LEDs and reacting with the solder mask. At least that is my guess.

[@7head7metal7]

Don't know why, but I really like these friendly little insults in broad australian accent, makes me smile everytime my country is mentioned :D

[@chromabotia]

I'm coming back in time to say that I understand how busy you are Dave. In the future Dave, Mailbag segments are not as frequent as they were in February 2016. I really love the old mailbag - so in the future could we have more? Thanks!!

[@compactc9]

I believe you got Utica right, only way I've ever heard it pronounced, but I've also never been to NY.

[@AKADriver]

The Pachinko machine being made by Samsung is interesting. Pachinko is a uniquely Japanese thing... but Pachinko parlors are frequently run by people who are ethnically Korean.

[@jonasfranke1042]

The Code is "42" in Binary.

[@travis4798]

I've never seen a genuine toggle switch on a router before. Interesting.

[@hubmartin]

+Travis Piper I got few ADSL Internet Wifi routers from my friend and every has on/off mechanic power switch. Maybe it's some ADSL telco historic regulation.

[@turboslag]

I'm not convinced that Dave didn't know what a Thatch Cottage is?! It's a cottage with a thatch roof, ie, made from straw.

[@Graham_Langley]

+turboslag May even be The Thatched Cottage.

[@turboslag]

Graham Langley True.

[@aepceo1]

That's not a knife, THIS is a knife!

[@Nordic_Mechanic]

+Justin Dixon no, this is spoon

[@TechBench]

+Veikra There is no spoon.

[@Nordic_Mechanic]

TechBench simpsons.wikia.com/wiki/Crocodile_Dundee

[@floriandaler5327]

Nice security note. Everyone needs this. You really know what are you doing. Love your video.

[@AmirHakimiRezaei]

+Florian Daßler what

[@floriandaler5327]

+Amir Hakimi-Rezaei The security info at the start where he sayd that he knows what he is doing.

[@joshrob2017]

I'm right near Leeds bloody hell, so close

[@-Graham]

Wow! Never seen a VFD dot matrix display before!

[@mUbase]

So whats the code on the T shirt?? The only thing I can see is something similar to the Waffen SS logo!! :O

[@Ghozer]

I think it's "Dave Jones" initially when he lifted it up, looking at the number of segments, vs comparing the E's etc.... - i'd have to look more into it though

[@makershackers]

I'd say the t-shirt represents 42 as a binary word. 0 for a downward bar, 1 for a upward bar... 0b00101010 42 I learn a lot from your videos, thank you!

[@Stallnig]

My father still uses the horizontal calculator seen at 9:45.

[@Sams911]

I have a functioning HP 41CV! God I love it...

[@RichardGalambos]

I was just about to mention cutting towards yourself... LOL!! Love it!

[@MD_Builds]

i think the moss is a plant in a bottle thing... Its self feeding thing...

[@ZomB1986]

+EEVBlog +Mangy Dog that 'moss' is a plant that survives on extremely low moisture, and can even hibernate when completely dry until it receives a bit of moisture again.

[@thekaiser4333]

The coded Tektronics message is : Buy more stuff.

[@buddhaman001]

Can you count those? Yep, that is a 64x32 display for a total of 2048 segments.

[@hubmartin]

+buddhaman001 Talking about that VFD? I'm interested how that can be multiplexed with so few pins.