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- เผยแพร่เมื่อ 29 ส.ค. 2016
- Lots of teardown mix in today's Mailbag
And Windows 10 SBC action, along with Sony and the Russians.
Forum: www.eevblog.com/forum/blog/eev...
SPOILERS:
Latte Panda single board computer
www.lattepanda.com/
Sony Pyxis IPS-30 GPS Teardown
Creative Zen music player teardown
Panasonic CF-U1 Toughbook
Raspberry Pi 3 enclosure:
www.kurokesu.com
Electrical insulation in a spray can
HP ESP128 hot swappable rack mount server power supply teardown
Zeo sleep monitor teardown
Russian Kvarts 404 transistor radio teardown
Russian calculator B3-14
Formula Lithium batetry pack:
www.energusps.com/
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I'm the guy who donated the Sony GPS! I've since discovered that it's the electrolytics on the display board that fail, resulting in "Dead Screen Syndrome" & not a loose flat-flex.
any idea how much this cost back in the day?
Just found retro-gps.info/Sony/Sony-Pyxis-IPS-360/index.html and wanted to say the same.
I seem to remember seeing a scanned ad somewhere that said $1,200 USD.
The postcard took me by surprise, since I've lived up in the mountains in NV looking over Tahoe for 4 years so far and I see those mountains every day :P
+Johnny Joannou Regretfully, I couldn't find a postcard for the pony express station in Fernley...Oh well!
I'd love one of those single board computers!
Well Dave, follow the picture on the can! Spray a drill, give 'er a dunk!
AvE would have 7 drills running in a bucket of water by now
"Hello, LattePanda customer support. Is it plugged in? Have you pressed the 'on' button?" ;-)
Sony GPS and HP power supply - beautiful. It looks like the Panasonic Toughbook didn't survive wartime service.
Yeah, I have the 4GB RAM/64GB LattePanda. I've found that you need to use a 3A power supply for it to run stable. I've also had to add a low profile heatsink to the back for it to run cooler. Other than those quirks I've been pretty satisfied with it. Btw, the LattePanda team has made a power-on-plugin BIOS that you can flash so that the board powers up when you apply power to it.
Damn I'm watching mailbags from 5 years ago.
These videos hold their value pretty good don't they?
Thanks from the states, I took basic electronics design and programming in the Navy (96-2000)
Long ago but I can follow along with most of the circuit explanations, I missed alot changing my field so TH-cam has filled the gap in a very satisfying way.
Thanks again!!!
Great! Another 50 minutes mailbag video, my favorite!
Good work dave, keep it coming and stay cool ;)
I am still waiting for Dave to open one of these random packages only to have a kilo of cocaine fall out onto the table.
I dream of that every night, jk #420blazit
Not gonna happen in Oz!
It happens every other month... But it never makes it past the video cutting stage.
lots of nice stuff! i like the battery pack and the pi 3 enclosures. really nice engineering there.
The transistor is a germanium PNP designed for low frequency amplification.
What do I win?
Datasheet link or it didn't happen.
www.155la3.ru/p40.htm
Time to put your extensive knowledge of the russian language to good use.
if you cut the head of that transistor you would use it as photo-diode :)
П40 - almost the same as МП40, but less noise.
10-79 would be the manufacture month and year. Ꜿ is a dotted lunate reverse Sigma, or a dotted lunate Antisigma, or Antisigma Periestigmenon, which comes from the Hellenistic period of Ancient Greece.
The only use I could find for the symbol was for editing. I can't find any uses of it in maths, sciences, manufacturing, etc.; not that finding that kind of information is easy especially when its used on parts from decades ago.
Edit: Or at least the backwards C with the dot looks like an Antisigma Periestigmenon. Could be something completely different.
what a classic radio, love it to much
I've lost count of how many times I've heard 'We're in like Flynn'-in the one video.
awesome items in this mailbag!
I see the problem... It's got a bit of malware called win10. Clean that up and you should be fine.
I'm sure that might help, but It may still thermal throttle the CPU when it gets to hot regardless of the operating system. I have the 4Gb ram/64Gb model and it works really well, but needs a heatsink on the back of it to keep the CPU cool.
Either you're an apple fanboy or you just don't like windows ten... Which one is it?
I hate windows 10 and apples computer operating systems, but IOS is not bad.
+Jacob Adamsky
It's the latter. Windows 10 is only a little better than Vista. Truth be told, I'm a Penguin. Windows 8.1 was good enough for me to avoid Linux withdraw when I had to go a bit without dual booting, but 10 is only good on my W10 Insignia tablet.
On my laptop, I only use the Windows partition for games and school software that's not Linux compatible. And that stuff is going to be put on Linux as soon as I can.
+bingo475 it might also be I/O throttling.
At 2:50 you can see the "Moskva 1980" text below the tuning dial. As pointed out by someone else it means "Moscow". If you notice the image to the left it is the logo for the 1980 Moscow Olympics. At 14:00 the sluggishness might be due to Windows checking for, and downloading, updates in the background. As to having to use a button to power on you should check if you can get in to the BIOS of the unit. If it is using a standard type of BIOS there will be an option that says whether the unit should power back up after a power loss or stay off. At 34:30 the power supply looks like one that would be used in a rack. The rack would provide the cooling so there would be no need for any active cooling within the supply itself.
As I said before, my favourite segment is fundamentals friday. :D
The little Windows 10 board could make a fun "hacker's laptop" project.
just rip win10 out and good to go
How would you remove windows? It's not like you can just stick a bootable USB stick in it and press F10 as it powers on...
probably jtag, it can be done a number of methods
well thats how you do it rip linux on a stick and boot from there.
You know your subscribers are getting fed up when the mailbag actually contains two cans of duck's guts.
The audio player from Creative that came before the iPod was called the DAP Jukebox, or something like that. It came with up to a 4GB hard drive, and then there were instructions on the net about how to upgrade it with a 20GB 2.5" laptop hard drive in order to get more storage out of it.
Pronounced "Moskva"
given he read the calculator name correctly, I'm quite sure he's pulling your leg
www.rw6ase.narod.ru/00/rp_p/kwarc404.html
It's made for Moscow olimpic game 1980. There are many electronic marked with this word in that period. But radio called Кварц(Kvatz).
That LattePanda looks like it would be a great project for a custom car computer hidden away behind a touchscreen monitor that fits in the double-din opening, replacing the factory radio altogether.
The "Mockba 1980" is actually the logo for the 1980 Moscow Summer Olympics - probably a specially produced radio for that event! A neat find
Love how to the co-processor is bound to a COM port on startup so you can push programs 2 it always. Also nice because then the co-processor and processor have a continous operating serial interface very nice!
That knife should be made mandatory for every youtube unboxing ever.
micro usb jack is handy but always soldered semi-thick wires directly to my Raspberry servers PCB to ensure wiggle-safe and low impedance PSU connection (had some stability issues with not-so-good USB cables)
That tough book definitely fell out of a delivery truck at speed xD
Dave should make a sick fuzz pedal out of the transistors in that radio.
HP power Suplies do have fans in the blade server 1U and 2U redundant systems that do run fans on the server side to cool the power supplies. They do have an independent card that monitors the hardware with its own network port to report when one fails back to a central monitor server. I've taken one apart before when doing server engineering, they are packed tight but do stay cool in a properly cooled and ventilated data centers.
My favorite segment!
Since rack servers are typically packed with fans (think at least a row of fans all across the width of the chassis) I think the pressure difference would force enough air through that psu to cool it.
this is my favorite segment
Being an owner of a baytrail based (about 10 to 20% slower than cherry trail socs) 8 inch tablet with windows, I can assure you all this choppines is windows 10 doing updates and installing stuff. One thing I immediatly noticed was the sound/volume icon showing a big white X on it, so the sound driver was still being installed and initialised.
I'm 100% sure that the little beastie will run fine after all the updates are done.
That old transistor radio beats my own age for one year :P
34:23 - true, it's not passive cooling: this server has an air baffle feeding air from the front fans into the power supplies.
My favorite segment Dave.
46:00 THAT LOOKS COSMETICALLY STUNNING
Those staggered DIP packages are properly called QIP (quadruple in-line). The SIP variant is called ZIP (zig-zag in-line).
That's the name I was hunting for.
The server power supply would have a bank of high flow fans behind it. I've seen servers like that in the past, most times they would have three hot swap power supplies in the back.
Yes, the air is forced by the server Fans through the whole server, including the power supply. Front to back.
34:40 - those power supplies are designed for the system to have a bunch of hot swappable fans that suck air through the front of the sever case and out of the back. So all the air flow would have to pass over the power supply.
I've had to replace a few of those HP power supplies. There's a light on the back and the front of the PC plus the ILO reports back via email when they fail.
the psu is active cooling - the fans are in the system, usually 2 rows of fans all across (2 rows for redundancy).they can get quite loud under load but they move a lot of air.
I had a Creative Labs Zen Touch - made the commute downtown to work on the train tolerable. I still have it, but the hard drive crapped out. Battery life was actually pretty good for the time - I could get 2 or 3 days of commuting with it.
I had the creative Zen Vision M. It was creatives version of the original iPod video. Very cool bit of kit .
IF leakage out the antenna is a common failure mode, mostly likely caused by front-end transistor zapped to short from gate-to-drain. Radio will usually still work, albeit at reduced sensitivity.
Holy CRAP. The version of the LattePanda that Dave has retails for $139 US!! Why on EARTH would you buy that at that price point?
Because it's for everything!
Awesome Dave! You have a gift for presenting things that makes almost anything interesting and novel (Not that there was anything boring in this video).
I love those Creative Zen mp3 players, always gave good battery life and sound quality. I had a hard-drive based one, now I'm using a newer flash memory one for audiobooks, use it for about an hour a day and it only needs charging every 3 weeks or so :)
Top hat transistors great memory's as a kid,some of these Russian radios had the transistors on plug in connectors.
That GPS unit was pretty cool, I was more interested in the AMD chip in the DIP package.
Another Win 10 compatible SBC in the Raspberry Pi format is the Up Board. available in 2gb ram/32gb emmc and 4gb/64gb
I'm not using a Creative ZEN, but I'd love to. Perhaps with Rockbox. Got so envious when you opened that box. :D
17:07 - A full Windoze 10 implementation - and you're wondering why it's so slow? :)
RE: The Proliant Server Power Supply. There are no fans in the actual power supply as the server has many fans arranged so that a very high volume of air passed from front to back. So pushed through the PSU. I work in a Data Center, and standing behind a rack of servers is like standing in front of a bunch of hair dryers. They certainly kick out some heat.
the power supply is cooled by the air draw through the server. they have lots of fans in them that draw a lot of air.
Dave it really works but just for one year!! You have to spray it again, there is plenty in the spray tin.
As far as that server PSU goes, it's passive as a module, and hot swap-able as you've indicated as well as the circuitry monitors the supply and unit performance while reports health stat's (to what was traditionally called a BMC (Baseboard Management Controller)) but have been redefined as of late. To address the passive appearance, the server unit to which this PSU belongs is doing the forced air with hot-swap fans (of course they are!) and it's quite typical of these systems to pull in ~68*F ambient air and kick out ~100*F exhaust. Quite well constructed and reliable these power units are. Being in the industry for over 9 years (since 2007) and working in a rather large data-center with thousands of servers and having multiple PSU's each I've only replaced a handful (
If you would have used the USB power adapter for bench power supplies out of the recent mailbag, the small PC most likely would have also worked from your bench power supply.
Can you scan and post the manual for the Sony GPS? I've got one, but I don't have the manual (just finished repairing it... same bad caps on the PSU daughterboard)
That HP PSU is from a 1U DL360 server (looks an older like 10 years ago one) - they have a load of small high speed (and loud) fans elsewhere in the chassis which forces a surprising amount of air through the PSUs. I've used one of these when I needed a decent amperage PSU before (20+ amps) and strapped a small fan to the end forcing air through it - they do overheat easily though.
I never had one of those zen players, but I do still have my Archos 504 from around 2006. I don't use it for video any more, but I still listen to music on it. The hard drive is big enough to hold around 20,000 songs (~256k VBR MP3) unlike my crappy phone. The batteries are pretty worn out though, they only last a few hours now.
That HP power supply is out of (by the look) DL360 G5. The case is pressurized and the power supplies are part of the vents out.
Back in the mid-90s (as far back as I really go) there were GPS receivers with as few as 6 channels - just enough to hold 4 satellites and keep a look out for a couple others to switch to if the ones you're tracking are obstructed. A nicer one would be 8 channels.
radio was obviously made to commemorate the 1980 Moscow olympics
Precious radio. I had several of these radios and televisions Russian-made communist era. Although at that time there was no talk of open hardware, the Russians already put into practice. In the user manuals of these radios and televisions, they included electronic diagrams with all the details, values and even waveform observed by the oscilloscope. I still have some of those diagrams. Transistors seen in the video, we opened with a file at the top, and we put a lens and used it as phototransistors. That was in my teens, in the 90s, on the Isle of Cuba. Thank you for bringing those memories.
You may have seen this, a while ago AvE used an unprepared drill to drill underwater.
Cordless drills are not really a challenge as they work reasonably well underwater anyways.
Funny thing about that Zeo, I had one of those years ago. I sent it back because the data seemed like random noise, as if I was waking up and falling asleep every 5 minutes. Some years later, come to find out I had sleep apnea and actually *was* waking up (to some extent) about every 5 minutes!
I'd have liked to see the Sony GPS fired up! Also that spray will save power companies a lot of ceramic insulators :D You should make a PCB spark gap and try it.
The date on that calculator will be the four-digit number on the back of it. It also has the price (шена, 'shiena') of 35 rubles on it. In that radio, the date code is on the back of the tuning capacitor; it's a Roman numeral for the month and two-digit year.
emmc stands for error memory module correction if the print is correct its the same kind of memory in servers i.e. no memory loss and/or data error correction
I wanna know if the spray can ingredients are all the same. yes? no? Plus the presence of a ball bearing indicates there are solids present in the can that settle when sitting.
Yay! Mailbags! Looks like I don't need sleep just jet. Bloody timezones.
the latte panda would make a great streaming box :P
If it's Windows 10, it's busy sending every little detail about you and your life back to Microsoft. So, you know, be patient.
Writing a biography. :) Pardon me, compiling a biography.
You say that, but I bet you have a Facebook page which is a thousand times worse than Windows 10.
Spray the RPi 2 or 3 with the nano protech ;) if it works well, you could do some underwater experiences with it like (maybe) sonar/camera projects :3
Come on Dave... at least spray something (ANYTHING!) with the nano-stuff and dip it in some water. Surfaces treated to be hyrdophobic (which is basically what is described in the blurb) are VERY obvious once you give them a dip in the ol' H2O.
All the other products that I have seen which do the same thing are a 2 part treatment (and expensive), so a 1 part system would be very interesting. So please.... spray and dunk!
All products? So you've never heard of conformal coating? or even using plain ol' nail varnish? (neither of which are terribly expensive.)
I saw an experiment back in the 80s where a guy sprayed a 240V lamp holder and lamp with CRC/WD40 and dropped it in a bucket of water. That seemed to work.
@34.00 Servers are built like wind tunnels, blasting massive CFM's through the case to keep the hardware within spec. If you wanted to be in a server room, bring ear plugs! The noise can reach into the upper 90-110 DB range. The upper range especially if the servers are working at nearly 100% load.
Server power supplies rely on the server case drawing air through them, thats why it looks passive but problably aint. most servers wont even boot without the internal fans behind the power supplies fitted.
Could you print a nice clear cover for the the old transistor radio? Those internals are just too damn pretty to hide away:)
"Creative Zen back in the day" Back in the day, never considered myself old. Aside from the size and heft, it was one of the best gadget pieces I've ever owned. Next time I see my parents I'll have to dig it up to see if it still works!
27:44 - That connector already gets sealed via its strain-relief fitting into the cut-out and sealed by the cover
I had the nomad also but the benefit of this mp3 player as compared to the ipod is no copyright bs. if you put a song on it you could transfer to it from it to anything you want without all the ipod bs restrictions.
The power supply is from a very old ProLiant DL360 G3 and provides 325 Watts. Nowadays you can get 1.200 Watts in about the third of the volume, that's almost 12 times more energy per volume. And also those are 94% efficiency with much less heat generation !
If the HP servers those power supplies go into are anything like the Dell machines I've been inside, they have modular fans that clip into the board right in front of the PSU. They're little 1-inch things with absolutely ridiculous RPM (up to 10k at full load) to push the air through such a tight space.
There are still plenty of people using dedicated music player. In general either to get something very small for exercise (I use a Sansa Clip Sport for this) or to get superior sound quality (IE the Fiio X3, 24 bit 196KHz lossless player with a very good DAC and amplifier) I had a Zen Color and a Zen Micro in the day, replaced them both with Sansa Fuze when it came out, because it was so much smaller.
The transistor radio was from the Moscow 1980 Olympics (Moskva 1980). Possibly a promotional item?
The calculator looks like the very first TI we got in 1972
The transistor is МП40 or in latin MP40. It's a PNP germanium soviet transistor. A very popular one back in the days..
Little computer is nifty. I like it.
22:10 There is a solder bridge on that top right IC
The markings on the radio actually say Moscow in russian
Made in Moscow?
No, he means the "mockba" is "Moscow" written in Cyrillic. Its pronounced "Moskva" in case you are curious.
No it has the logo of the Moscow Olympics in 1980.
There's no homing beacon receiver hardware al la the Firefox movie.
The little windows computer around 13 mins. Windows is VERY disk heavy and low quality SSD's don't usually buffer writes very well. I've seen bad herky jerky performance with Win10 on low end SSD or SD card storage. The windows kernel scheduler is terrible with high I/O wait times. Put linux on it and it'll run very fast.
I'd bet there are Windows Updates going on. Yes there IS a GPU on it which will be enabled once the Intel HD Graphics driver is running...
Doesn't necessary have to be, I have a cheap windows tablet with very simmilar specs (32emmc/2gb, slightly weaker atom even) and when it comes to boot times and light tasks like web browsing, movie watching, etc. it feels very simmilar to my desktop, wich i would considder as current high end. Actually with both the 8.1 and then 10 update the tablet has become smoother in operation, there seems to be some kind of "burn in time" though untill everything runs as desired.
But you are still right, some Linux distros will probaply be faster
what a load of nonsense. The idea that linux is faster is a myth. Put Ubuntu on it and it will be the same experience.
Designandrew My information comes from being an I.T. professional that has studied the I/O issue with the windows kernel. I've compared, and timed things on the same hardware purpose built for the testing with cheap non-buffered early SSD's and a low end SD card. It's not an emotional issue for me, just an interest.
Kevin Loughin Sorry I didn't realize you'd tested the latte panda x86 machine so thoroughly. Do you have any links to your interesting research?
The way you talked about the australian Aa+ batteries at the beginning.. have you watched the Numberphile calculator unboxings? :d
Oh man, I bought a Creative Zen Touch off a friend almost a decade ago now because he purchased a MacBook and got an iPod. It eventually died of a HDD failure about a year after I purchased it and then I upgraded to an iPod 5.5G 30GB!
Well. I am early
Earlier than usual. I could really use that sleep monitor you have.
Also, PDM outputs typically have four pins, so I think those are just standard fan outputs
Hi,
About the Soviet calcuator and radio, some people have already explained, what MOCKBA means and what was Estonia in 1980s (so they could actually be manufactured in the Estonian Soviet Republic - but I have no idea whether they were producing any electronics there). But I can explain what says on the calculator rear side.
Factory number: (I can't read it)
Date of manufacture: 0280 (I presume it means February 1980, and it makes sense, taking into account the components day codes)
3 x 1.5 V; Price: 55 rubles
BZ-14 (not B3-14!); Manufactured in USSR
Only watching it for the third time I understood the "Australian model" of the cell :-)
The radio can receive long waves (ДВ - DV - LW) and medium waves (СВ - SV - SW) and the scale is, of course, in terms of the wavelength in meters instead of frequency.
On the radio rear side, there is a range switch, and on the label it says:
Radio receiver
Kvartz 404
Olympic
And in the small boxes:
APP-IV
GOST 5651-76 (it seems it's a standard it complies with)
Powered with 9 V
2 ranges: LW - MW
Price
32 rubles, 20 kopeks
It's interesting that a calculator was more expensive than a transistor radio in those times!
I'm fairly sure that windows needs a start button to be compatible and you should open Task Manager on first start up to see resource usage to know when the processor and ram are at 100 percent causing lag and stutter.
I seen a review of the panda a few weeks ago. Looks pretty decent
47:45 Nice coincidence, I almost looked into buying that one a few days ago :)
I believe I have the same USB cable
You can plug it either way, but some of them are faulty and will drop a lot voltage during load when plug one way, not the other.