EEVblog

Ғылым және технология

Mailbag Monday.
SPOILERS:
Altium Circuit Maker:
circuitmaker.com/
Professional USB 2.0 Protocol Analyser:
www.kickstarter.com/projects/...
from International Test Instruments:
www.internationaltestinstrumen...
Cypress USB Microcontroller: www.cypress.com/?rID=38801
www.geppettoelectronics.com/
Forum: www.eevblog.com/forum/blog/eev...
EEVblog Main Web Site: www.eevblog.com
The 2nd EEVblog Channel: / eevblog2
Support the EEVblog through Patreon!
/ eevblog
EEVblog Amazon Store (Dave gets a cut):
astore.amazon.com/eevblogstore-20
Donations:
www.eevblog.com/donations/
Projects:
www.eevblog.com/projects/
Electronics Info Wiki:
www.eevblog.com/wiki/

Пікірлер: 391

  • @lednerg
    @lednerg9 жыл бұрын

    Two minute teardown is a great idea for mailbag Mondays. Good stuff. EDIT: A Twin Peaks shout out! lol

  • @quincy8557
    @quincy85579 жыл бұрын

    The problem with that Solar Cell was that it was so well packed it was almost impossible to get out without damaging it. Especially with the giant knife

  • @EEVblog

    @EEVblog

    9 жыл бұрын

    quincy8557 Well, if I knew it was a solar cell then I could have tried to open more gently :->

  • @quincy8557

    @quincy8557

    9 жыл бұрын

    EEVblog Maybe, hope he sends another. It will be interesting seeing you evaluate its efficiency. Maybe if you get an even bigger knife the opening process will be easier

  • @MrSlehofer

    @MrSlehofer

    9 жыл бұрын

    quincy8557 When I'll be sending you something i have to stick a tag with "don't use australian knives to open!!!" writen on it :)

  • @resystanc3

    @resystanc3

    9 жыл бұрын

    Nope. The problem was the lack of warning on the package.

  • @mmbb001

    @mmbb001

    9 жыл бұрын

    ***** Yes, i agreed with you. Now, I know this. :D Nevermind, it was a funny unboxing ever, but i am sad that you cannot test it. Dave, use a smaller sword! :)

  • @winstonsmith478
    @winstonsmith4789 жыл бұрын

    Solar cell package - how to pack something for protection in the mail while making it nearly impossible to open without breaking it.

  • @pvc988

    @pvc988

    9 жыл бұрын

    I thought exactly the same. Some rigid plastic enclosure would do the job (like one used with CDs, just bigger). Or at least some huge red warning saying "Extremely fragile" or something like that. Too bad it broke, it could be nice big solar panel and Dave could do some great video showing how this actually works in practice.

  • @t.Mooney
    @t.Mooney9 жыл бұрын

    Two minute tear downs are awesome. A welcomed addition to mailbag Monday. Thanks.

  • @diete103
    @diete1039 жыл бұрын

    Thumbs up for the 2 minute tear down. I"m always happy to see a 40 min + mailbag! Plus I love tear downs of which I wish you could do more. Win-win in my eyes!

  • @SproutyPottedPlant
    @SproutyPottedPlant9 жыл бұрын

    Mailbag is the best!! No teardown is too long I think! The videos are great no matter what!

  • @Razor2048
    @Razor20489 жыл бұрын

    I like the mini reviews in the mailbag episodes, adds more content. Longer episodes = awesome as we do not get nearly enough EEVblog each week :)

  • @randomtom
    @randomtom9 жыл бұрын

    Enjoyed the 2 minute tear downs! Nice to see some of what you open that doesn't make it into a full tear down video.

  • @TilmanBaumann
    @TilmanBaumann9 жыл бұрын

    Dave, the idea with the erratic clock is to be accurate on a by minute basis but drive you insane with the erratic ticking.

  • @nsayer

    @nsayer

    9 жыл бұрын

    Exactly right. That particular firmware ticks once a second, but on a random tenth-of-a-second.

  • @jebsaekam

    @jebsaekam

    9 жыл бұрын

    Nick Sayer Unfortunately the Black arms on Black background makes it functionally useless. :( I like the erratic click idea.

  • @nsayer

    @nsayer

    9 жыл бұрын

    ***** Well, you can hear it though. One of the side effects of the replacement controller is that it makes the clock tick a bit more loudly than it naturally does. Which is a feature. :) And the hands come off fairly easily, and can be painted.

  • @redtails

    @redtails

    9 жыл бұрын

    Tilman Baumann it's called a Vetinari's Clock

  • @UberAlphaSirus

    @UberAlphaSirus

    9 жыл бұрын

    I so want one to drive my friend nuts!

  • @Michael_Michaels
    @Michael_Michaels9 жыл бұрын

    Two minute tear-downs are awesome!

  • @lunaz4697
    @lunaz46979 жыл бұрын

    Two minute teardowns definitely a winner.

  • @phattieg
    @phattieg9 жыл бұрын

    By the way, you should start reading the letters before you open the package, that way you can avoid breaking something else.

  • @TsMarinov
    @TsMarinov9 жыл бұрын

    Hi Dave, 2min teardowns are great and new ruler campaign sounds even greater! Thanks!

  • @hikecraze
    @hikecraze9 жыл бұрын

    Loving the 2 min teardowns for the stuff you may have already coverd in other vids to show diffrent layout designs. for newer stuff yeah teardowns are very welcome.

  • @arashai
    @arashai9 жыл бұрын

    My favourite part of this blog is the teardown and repair videos and the associated commentary of how everything works. Personally I really didn't mind when you went off on a tangent in previous mailbags, but perhaps the two minute teardown is a good compromise between people like me who want to see a little bit more of the items that won't get their own video and those who just want to see you open mail like a kid on Christmas.

  • @TheOriginalEviltech
    @TheOriginalEviltech9 жыл бұрын

    Love the 2 minute teardowns! Maybe even 3 minutes!

  • @QuantumFluxable
    @QuantumFluxable9 жыл бұрын

    The 2 min teardowns are cool, I like how you give a general overview of the devices without too much detail, to me the general design is most interesting, not the tiny nifty details, at least for the mailbag.

  • @xXxEdgyMurphyxXxdank
    @xXxEdgyMurphyxXxdank9 жыл бұрын

    Loving the two minute teardowns! Keep it up! ;)

  • @Machine_gun_of_ideology
    @Machine_gun_of_ideology9 жыл бұрын

    the 2 min teardown is a nice compromise, i quite like it!

  • @envisionelec
    @envisionelec9 жыл бұрын

    The ground plane on the Protocol Analyzer is connected - bottom layer and vias through to the top.

  • @MnemonicHack
    @MnemonicHack9 жыл бұрын

    Every time I see your knife, I get a feeling something bad is going to happen. I thought I was a pro with a knife too. Then one day, while prying off a zip-tie for a pair of scissors, it slipped, went straight through the side of my left hand pinky finger, and severed both the flexor tendons. Only one could be repaired, so I lost some functionality in it. On top of that, I didn't have insurance, so the entire affair was about $19,000! Luckily they decided to be nice and knock half of the price off, but still. Also, love the 2 minute teardowns. If I'm gonna be honest, I love any teardowns

  • @redtails

    @redtails

    9 жыл бұрын

    ***** Why the hell would you not have health insurance ?

  • @robertcalkjr.8325

    @robertcalkjr.8325

    9 жыл бұрын

    ***** Why the hell would he use a knife when snips would have been better? He could have used toe nail clippers... People need to use the right tools for the job.

  • @MnemonicHack

    @MnemonicHack

    9 жыл бұрын

    To answer both of your questions, I was out of work at the time and couldn't afford health insurance, and I didn't have anything else around at the time, PLUS I had literally never cut myself with my own knife before. Since then, I haven't cut myself with a knife again, even though I use a box cutter every night at my current job. That time was a simple slip up that just so happened to be angled perfectly for destroying the lever system in my finger. If you're interested, I have pictures :D

  • @redtails

    @redtails

    9 жыл бұрын

    ***** So.. in an effort to shave some bills off, you ended up cancelling your health insurance and paying the absolute TOP dollar for an unfortunate injury. If you're going to save on some cash, the last services you want to cancel are your insurances.

  • @MnemonicHack

    @MnemonicHack

    9 жыл бұрын

    I didn't cancel my health insurance, I had just never gotten around to buying any.

  • @KaFFi3N
    @KaFFi3N9 жыл бұрын

    lovin the 2 minute tear down, keep up the good work :)

  • @testikanava3756
    @testikanava37569 жыл бұрын

    This video was a total winner! love the 2min teardown.

  • @Lyndon1015
    @Lyndon10159 жыл бұрын

    Hey Dave, love the blog! It's revived my passion for electronics! Would definitely back a campaign for the pcb rule.. Keep the videos coming!

  • @CheapSushi
    @CheapSushi9 жыл бұрын

    For some reason I really love the casing on the security gate board. Looks really cool.

  • @JustinAlexanderBell
    @JustinAlexanderBell9 жыл бұрын

    I really like the lead bending tool on the end of the new ruler, definitely start a new campaign!

  • @robertcalkjr.8325

    @robertcalkjr.8325

    9 жыл бұрын

    Needle nosed pliers work great for me. But I would like to have one of those rulers also.

  • @BBC600
    @BBC6009 жыл бұрын

    I love the new 2 minute tear downs tides me over until Tuesday or whenever I actually get around to watching the previous Tuesday's video! Save the big things for the more in depth segment on Tuesdays!

  • @zoltant.4915
    @zoltant.49159 жыл бұрын

    The CheckPoint stuff is theft protection device used in stores. It must have a 58 kHz RF loop as antenna attached to be able to detect armed RF tags.

  • @stonail665
    @stonail6659 жыл бұрын

    Like the 2 min tear down and the ruler .

  • @jix177
    @jix1779 жыл бұрын

    'Straight to the pool room' - there can be no greater compliment! Nice to hear a quote from my all time fav film. Dreamin'.

  • @Sithhy
    @Sithhy9 жыл бұрын

    I was so sad about that Solar Cell part *:(*

  • @electronicsNmore
    @electronicsNmore9 жыл бұрын

    Nice bowie knife. :-). I have a couple. Nice letter & package opener. The rotary switch on the analog meter is a beauty. The good thing about the solar cell is, even though it broke, you can still use several of the pieces.

  • @mariuslambacher8743
    @mariuslambacher87439 жыл бұрын

    Love the two-minute-teardowns!

  • @sc0tte1-416
    @sc0tte1-4169 жыл бұрын

    Those impossible to tear mailbags remind me of those sleeves the old floppy discs came in lol

  • @DarkStarPDX
    @DarkStarPDX9 жыл бұрын

    Love the 2-minute teardowns!!!

  • @fratink
    @fratink9 жыл бұрын

    Hey Dave, really enjoyed the 2min tear downs!

  • @dinkc64
    @dinkc649 жыл бұрын

    Love the mini-teardowns!!

  • @StephenFarmerTP
    @StephenFarmerTP9 жыл бұрын

    I love the new two minute teardown segment!

  • @ajmalghanty
    @ajmalghanty9 жыл бұрын

    Hello Dave! Glad you liked the keyholder..and the sand..haha!

  • @elsep20031
    @elsep200319 жыл бұрын

    Well it's not often I see components made in the North East of England let alone 10 mins away from where i live. That Welwyn glass resistor was probably be made in a small town called Belington.

  • @dhpbear2
    @dhpbear26 жыл бұрын

    12:22 - "meter movement PROTECTION" - I'm not sure how they achieve this, since there is NO 'off' position on the range switch (to short the meter terminals together)!

  • @ToumalRakesh
    @ToumalRakesh9 жыл бұрын

    About that clock, it's Lord Vetinary's clock! en.wikipedia.org/wiki/Havelock_Vetinari

  • @redtails

    @redtails

    9 жыл бұрын

    ***** yes! Vetinari's Clock, the one he put in his waiting room to make people go crazy

  • @nsayer

    @nsayer

    9 жыл бұрын

    Not precisely. I do have a firmware load that acts like Vetinari's, but this one isn't it.

  • @nickguy6820

    @nickguy6820

    9 жыл бұрын

    Nick Sayer Sooo.... what is it then? (I was thinking the same. Couldn't remember the name though.)

  • @nsayer

    @nsayer

    9 жыл бұрын

    Nick Guy That firmware is called the "Whacky" clock. It ticks once a second, but on a random tenth-of-a-second. The Vetinari firmware ticks imperceptibly slower, and when it's gathered up enough time, it does a "double" tick. It does this about once every half minute or so, give or take (it's random). From the description of the clock's behavior that I've gleaned (I haven't read the books), that was the best algorithm I could come up with.

  • @nickguy6820

    @nickguy6820

    9 жыл бұрын

    OK, I see. Thanks for the follow-up. :-)

  • @johannesbalzer6852
    @johannesbalzer68529 жыл бұрын

    Love the idea of two minute teardowns :)

  • @vk2btc
    @vk2btc9 жыл бұрын

    Dave, you need one of those airport X-Ray screenes to view the contents of the mail before you wield the knife.

  • @dhpbear2
    @dhpbear26 жыл бұрын

    24:30 - Those Welwyn resistors - I wonder how much the values vary with humidity (even if the inside of those tube is evacuated (I'm guessing), the surface could get dew-ey and decrease the resistance! I'm guessing this is why it's rated at 10% tolerance.

  • @dhpbear2
    @dhpbear26 жыл бұрын

    22:04 - Oh Dave! You're giving me a couple of ABSOLUTELY DREADFUL work-related flashbacks! :)

  • @Richardincancale
    @Richardincancale9 жыл бұрын

    Lucky Dave - you got a Havelock Vetinari Discworld clock. Keeps good time but advances randomly to increase the stress levels of waiting visitors!

  • @tubical71
    @tubical719 жыл бұрын

    Last time, i was indeed complaining about the length of the thermo Cam, but it was not my intention to make you go on quicker through your mailbags....If you show would last for two hours, it would be ok for me, as i *love* your show!! Thanx Dave!!

  • @TheAmmoniacal
    @TheAmmoniacal9 жыл бұрын

    I approve of the 2 minute teardowns, also, too short.

  • @VoidHalo
    @VoidHalo7 жыл бұрын

    I remember once I picked up a 32gb Micro SD card on sale for $10. When I went to use it, for some reason Windows wouldn't let me format it. And when I did finally get it to format, there was only something like 261mb listed on the drive. When I took it out and examined it, I realized I'd clipped the edge off with the scissors when I opened the package. I'm surprised it still "worked" as well as it did. I would have figured removing part of an SD card would damage it beyond any sort of operation.

  • @UberAlphaSirus
    @UberAlphaSirus9 жыл бұрын

    I would be up for the new batch of rulers. Love the mini tear downs. Way over wrapped solar cell! Now you have a time piece, can I have the time circuits. I would repair them and love them and squish them and love them some more :D Or donate it to Applied Science to put in his delorean, now he is playing around with the engine, it would make for a great console to display stats.

  • @felixdinjo5364
    @felixdinjo53649 жыл бұрын

    2 minut teardown is awesome!

  • @hamcha
    @hamcha9 жыл бұрын

    I wonder if you could have people with Kickstarters have note it on the package and have some sort of priority or something?

  • @pratherat
    @pratherat9 жыл бұрын

    I miss Fundamentals Friday. And when are you going to finish the USB power supply? I enjoy those segments so much!

  • @bigb0r3
    @bigb0r39 жыл бұрын

    2 minute teardown is great for mailbag.

  • @Psychlist1972
    @Psychlist19729 жыл бұрын

    Tip: If something is that fragile, don't make it that hard to open.

  • @robzyb
    @robzyb9 жыл бұрын

    Hey Dave, its Rob here, the guy that sent you the ECG machine! I'm glad that you like it. I should point out that the machine came from eBay with that ground-wire bodge. The machine does work when the probes are hooked up and you press random buttons.

  • @Kodachi123
    @Kodachi1239 жыл бұрын

    I like long teardowns; even on Mailbag Monday :)

  • @supersat
    @supersat9 жыл бұрын

    Different type of security gate. Checkpoint Systems makes anti-theft systems for retailers. There's probably some interesting RF processing going on inside. The right side of the board is probably power amps for the transmit antennas, and the left side of the board probably analyzes the received RF signal for the presence of anti-theft tags.

  • @MalcolmCrabbe
    @MalcolmCrabbe9 жыл бұрын

    Hi Dave, Welwyn Electronics (pronounced well-in) were originally based just up the road from me in UKs first garden city (Welwyn Garden City) from 1937. They are now part of TT Electronics PLC but they still produce its iconic green vitreous enamel coated wire-wound resistors, but in Barbados rather than the UK.

  • @alynicholls3230
    @alynicholls32304 жыл бұрын

    that case the usb analyser is in is the very same i use for my detectors, sometimes the alu version and sometimes plastic but always the same enclosure. oh and hi dave did you ever get your gopro back?.

  • @BBC600
    @BBC6009 жыл бұрын

    Yes you should do another campaign for your micro-ruler! :-)

  • @maybehuman4
    @maybehuman49 жыл бұрын

    Dave don't knock the knife. In the immortal words of Steve Jobs, you're holding it wrong.

  • @wykeradio
    @wykeradio9 жыл бұрын

    Got to do another run of the ruler, many of us missed the last run.

  • @DVRcasaloro
    @DVRcasaloro9 жыл бұрын

    you are getting suspiciously skilled with that knife....

  • @network_king
    @network_king9 жыл бұрын

    cool ruler, just idea to add to it. Put some codes for VRMs, ceramic caps on it.

  • @CookingWithCows
    @CookingWithCows9 жыл бұрын

    Hehe there's a metal detectorist here on YT called Beau Ouimette who regularly finds gopros at the bottom of a river where he is looking for american civil war history and where people go on rafting tours. Lots of people losing gopros :D it's fun because it will likely still work when you get to it and will have recorded everything until it's battery died :D

  • @quincy8557

    @quincy8557

    9 жыл бұрын

    There is, and he has found at least two. They are watertight and will last for ages under water

  • @Gin-toki
    @Gin-toki9 жыл бұрын

    People should mark their mail to Dave as kickstarter and an expiration date so Dave know it needs atention sooner than later :)

  • @lathiat
    @lathiat9 жыл бұрын

    Loving the 2 minute teardowns

  • @CarlRecktenwaldJr
    @CarlRecktenwaldJr9 жыл бұрын

    2 min teardown. Perfect..

  • @FruitMuff1n
    @FruitMuff1n9 жыл бұрын

    I like the 2 minute tear downs :D Still trying to figure out what 'Looks a little "how ya doin'"' means. But, I'm guessing it's bad :P

  • @necessaryevil8615
    @necessaryevil86159 жыл бұрын

    The Cylone II is actually NOT upside down, you got the special Australian edition!

  • @dwDragon88
    @dwDragon889 жыл бұрын

    Dave, do you know if there's a way we can request one of those Circuit Maker brochures from Altium? The little protoshield looks nice, I wouldn't mind getting a couple.

  • @boyercam
    @boyercam9 жыл бұрын

    EEVblog's new slogan: "It was all going well, until I broke it"

  • @AnneJan
    @AnneJan9 жыл бұрын

    Yes on the new microruler campaign! Bought 10 last round and gave 9 away to some very happy hackers .. Well .. they were happy with them rulers at-least :)

  • @skiptabor
    @skiptabor9 жыл бұрын

    Doesn't Remco make power modules these days? That logo looks very familiar.

  • @SantaClaw
    @SantaClaw9 жыл бұрын

    EEVblog Try reversing your knife policy, get a scalpel :)

  • @dhpbear2
    @dhpbear26 жыл бұрын

    I'm guessing they measure capacitance by sending a constant measure the time it takes to charge to a certain level (?) In the case of the 20 Gig-ohm (Gohm?) resistor, it's just took too damn long!

  • @MyCrazyGarage
    @MyCrazyGarage9 жыл бұрын

    I love Mailbag Monday!

  • @wowcolors
    @wowcolors9 жыл бұрын

    What are those huge value resistors used for?

  • @EvanEdstrom
    @EvanEdstrom9 жыл бұрын

    I like the 2 minute teardowns, but I'd rather have them separate videos (youtube videos can be short, you know). But whatever you do, I'll still watch :)

  • @stuartkerr7725
    @stuartkerr77259 жыл бұрын

    I like 2 minute teardown! Dave Jones

  • @Screamingtut
    @Screamingtut9 жыл бұрын

    love your video from a old but young at heart EE! was working on HD the size of washing machines when you were in diapers. worked for DEC on PDP11's and VAX's and Wang Labs on VS90 VS100..

  • @adslf874yti3q7u4hf83
    @adslf874yti3q7u4hf839 жыл бұрын

    When the ECG machine came up, my wife said "It's not that old; we're still using them (at Westmead Hospital)". Sign of how old the stuff they use at the hospital, perhaps!

  • @BigMaxTube
    @BigMaxTube9 жыл бұрын

    I reckon 5 minute mailbag tear downs are cool !.

  • @dhpbear2
    @dhpbear26 жыл бұрын

    13:46 - you of ALL people should KNOW why these sleeves are slipped over the batteries - it's to keep the electrons from falling out! :) At least they were 'smarter' than the Batteriser people, in that there is less risk of the 'case' shorting out the battery!

  • @yuppiehi
    @yuppiehi9 жыл бұрын

    Based on the purple color, I assumed the board was made by OSH Park. I searched the site, and found "Crazy Clock v0.8"... It basically ticks randomly, but keeps the correct time. The version on this clock is v0.6. Go to oshpark - dot com/shared_projects/INH02L3I

  • @mikeissweet
    @mikeissweet9 жыл бұрын

    I, too, used to wear small shirts. They fit me the same as they do you.. but I gotta recommend medium for you, homie.

  • @albinekb
    @albinekb9 жыл бұрын

    i want that ruler! :D

  • @SakariNy

    @SakariNy

    9 жыл бұрын

    I want rulers, too. Number of them, they are good presents, too!

  • @aladaris

    @aladaris

    9 жыл бұрын

    I want it too !

  • @Kaeltis

    @Kaeltis

    9 жыл бұрын

    Want it! :D

  • @LordThoth16

    @LordThoth16

    9 жыл бұрын

    Dito!!!!

  • @UberAlphaSirus

    @UberAlphaSirus

    9 жыл бұрын

    Maybe a few free for a local distrubuter in each country. Might save some losses etc. Just a thought. If still in stock, I wouldn't mind a trilogy set :D

  • @redtails
    @redtails9 жыл бұрын

    25:25 yes please, run another campaign where we can buy the uruler!!

  • @Marineio
    @Marineio9 жыл бұрын

    Vetinari style clock?

  • @harizhent
    @harizhent9 жыл бұрын

    You like to talk - we like to listen! That is why we all are here. Knowledge!

  • @VoidHalo
    @VoidHalo7 жыл бұрын

    I think that solar cell probably cracked when you bent it if anything else. I don't think it had much to do with the knife, at least not directly. I love that you put up the video anyways, even though you screwed up, assuming it was in one piece when it arrived. I'm not an electrical engineer, and in fact I can barely wire a circuit to demonstrate ohm's law, but I love this channel.

  • @modrobert
    @modrobert9 жыл бұрын

    ROFL at the solar cell 30:00 minutes in. Maybe a new direction for the segment; destructive mailbag.

  • @GustavMeyer
    @GustavMeyer9 жыл бұрын

    It's a Vetinari clock from Discworld =)

  • @azyfloof
    @azyfloof9 жыл бұрын

    Solar freakin' mailbag

  • @EEVblog

    @EEVblog

    9 жыл бұрын

    azayles I so missed that one-liner!

  • @azyfloof

    @azyfloof

    9 жыл бұрын

    EEVblog You should sell the fragments in little glass pendants!

  • @Vynncent
    @Vynncent9 жыл бұрын

    Idea: Wall of multimeters secured with velcro

  • @lacombar
    @lacombar9 жыл бұрын

    You should use a smaller knife to open you mails, it would prevent your struggling (and breaking stuff) :-/

  • @power-max
    @power-max9 жыл бұрын

    I guess that what happens when things are packaged too much :( I think I would have put it in a plastic box or an envelope made out of thick sheet metal so it is hard to bend it.

  • @spinningquad8700
    @spinningquad87009 жыл бұрын

    Like the 2 minute tear down Dave

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