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- Опубліковано 6 гру 2014
- Dave dissects and then powers up the Tektronix TDS220 oscilloscope used in the Mud Run. Did it survive?
The Mud Run video: • Sydney Mud Run 2014
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The braid copper mesh is to join the ground plane to the case shielding.
Wow. Respectable that it still passes self diagnostics! All it needs is a little TLC wash and a new display.
These were in my college's lab for years, and probably still are. Thanks for the teardown Dave!
Me and my son thought your mud run video was awesome! Thanks for the vids
Congratulations on completing the mud run and not dying of dehydration with that bunny suit. Just a guess but I think the weird spongy material at 5:30 was used to ground the board to the nickel shield coating on the back cover. Unless I'm missing another grounding method.
"... with that bunny suit."
Internet has ruined me ... :)
GREAT HELPER, THANK YOU.
Man these higher frames per second video's are great.
Wow, so basically it survived perfectly... And the Mud Run video was really awesome and hilarious :) Well, all your vidoes are. I dont even understand most (well, some) of them but still for some reason they are extremely interesting.
Great video Dave. A present day scope has a much bigger board for scope section.
I have a more recent version of that scope (IIRC, TDS2012, has a colour display and much faster display update). Picked it up for a very reasonable price, it's a nice little bit of kit - very portable, very easy to use.
I am quite surprised! I would have thought there would have been more muddy water inside. Amazing!
Video was a great help to open mine.
I use my good old TDS220 for about 20 years and it is still my most used tool and just enough for almost all work I have to do.
Just have to re-solder the ground-connections to the probe-sockets
Is it good?
@@prateekchowdhury3337 works as supposed. But no longer "state of the art" of course.
The later Tektronix booting Windows to run. I am not sure if I want this :-)
I'm asking because I'm getting a new local crt digital oscilloscope(30Mhz ) and at same cost I'm getting this one. What would you prefer?
@@prateekchowdhury3337 there lot of new scopes with also 2CH 100MHz @ 1GSa... for very low price.
But never tried those. Guess they fine.
Hey, I just realized this was 5 years ago! But I sill using mine :-)
@@greekstraycats so I've decided buying tds220, samples per rate is quite higher than that local one.... Actually availability of scopes in India is less and expensive because they are imported from other countries and due to our weak currency right now they became more expensive acc to our pay
Just wanted to point out, Tektronix is still based in Beaverton, Oregon, USA. I know because I just visited their recycle shop and nabbed myself a 7704A in repairable condition for only 20USD. Thanks for the awesome videos, you crazy bloke.
I don't know about u guys, but I feel mighty proud. We just made it happen by following Dave from his early home videos to his new lab. Now over and in mud in the name of charity. This goes to tell ya, engineering is not just a way of life. It is a world sport.
Agreed
i've watched dave from the first video every since he said..... BUT WHAT ABOUT GUYS LIKE US, WHY DONT' WE HAVE A CHANNEL
LOL
I've literally got all his videos download (I personally consider myself DAVE'S OFFSITE VIDEO LIBRARY BACKUP LOL) so that if we were to go through a zombie apocalypse and zombies were to destroy dave's entire collection as well as the you tube servers and dave had to start over, he'd just have to say "Martin, i need those fucking videos if it's cool" and i'd be like "Sure , mate, no fucking worries"
he's doing good work and i'm proud of the guy as he's carrying on our legacy from back in the day to the new generation on a grand scale
i reckon there should probably be , like a golden statue of dave next to the rocky statue LOL
or maybe in Australia how we have Big Banana and big Merino and all that, maybe put up a BIG DAVE statue in like the Windsor area or something shit like that, Maybe Castle hill or maybe Norwest Business Park outside the lunch shop LOL
he's a good man and he's doing good work
ABSOLUTE LEGEND
Floatation pack and that carry strap, very nice and unique features, Tek must be gone through many prototypes until they done it just right to meet that Aussie MIL-Specs;)
That "thing" at 05:32 is IMHO to give a good ground contact to that nickle plated sheeld on that back cover. As when you opened the case i didn´t spot an extra ground lead to that sheelding....
Pretty impressive that it survived, and I did see the screen bring filled with water in the last vid, aswell as the thing draining out as you left the mud pools, and it's still working, impressive build quality that!! :D
The corrosion inside it though looks like it had been sat in a few inches of water in it's previous life, so I guess it's already had a good soaking, but again, still works, incredible... :P
First time ever I had hoped you just turned it on.
10:07 You power it up and what have you got? Power Cycle 256 - what a coincidence, nice!
Yea, at first I thought that it was a working scope and was not happy, I am glad to find out that it is not that good.
hello, i also have this, power supply in, D17 is burn out, so can you tell me the spec?
is it zenor or short diode
I had a loose BNC on the front of one of my analogue scopes. Complete teardown just to tighten a nut.
Hello there, I have seen Dave using a "plastic style" pen in his videos. Anyone know what is called or where I can find one?
IFix it sells something similar. Not sure what it is called
It's called a "spudger".
4hodmt
thank you very much, I found it on ebay!
Are the front panel knobs really pots? You mentioned something about them possibly having self-cleaning contacts. I always presumed they would be encoders if they have continuous rotation.
Interesting you brought that Fluke meter in at the end. I used to have a nice Fluke meter that someone else apparently figured it needed a new home with them because it vanished. Some years later I got a replacement for like $20 as it was in a box of other stuff at an estate sale and no one knew it was in the box. My boss was commenting on how it was his already because he was biding on stuff and thought he had gotten that box but he looked briefly at the top of it and decided he didn't want it after all. If he had seen that Fluke he wouldn't have walked away from it.
Awesome!
Got any more you want to get rid of? I used to use these at tafe years ago but they still sell for like $500 on ebay
Why does the video look like it's going fast. Is that the higher frame rate? Still never gotten used to that 50hz+ soap opera effect.
Awesome video. It is hard to kill some hardware sometimes. :)
I wonder if these Bornouse encoders are incremental (quadrature / Grey encoding) or absolute (like 8bit parallel). I mean good Bornouse encoders cost few bucks a piece. They are quiet useful.
Heya mate. In regards to the earthing recall - I just picked up one of these. It has a sticker on the back of the case "P.S. MOD SUP 40-003". I assume that is from the recall you mention?
Looking at the guts of this unit, it looks like the board that the earth wire goes to - it looks like a much newer revision than the board in yours (ie smaller ICs, smaller crystal/resonator). I am guessing with the redesigned board, they fixed the earthing issue, as this unit only has the 1 earth wire as yours does.
We have these scopes in our school and they really are slow as hell, but they work!
Greetings from Austria. :-)
I'd probably go for an old LeCroy 9300-series scope; those were very nice.
This scope appears to have been sitting in water before you got it. It may have been a repaired unit using the old case with new boards installed at some time.
You could probably still auction that for charity Dave !
I would pay money for that scope. It seems like the only way for me to afford upgrading to digital for the time being. I could only afford an analogue scope after a very nice student discount.
theres a clear waterline on there it must have been sitting in a couple inches of water for a while before you bought it
Came here to mention this. Looks like pretty obvious water damage!
Maybe sitting on the floor of some basement :) Even more impressive that it still works at all after a good soak.
Hey Dave my 220 scope is missing a few knobs can't find them anywhere you should send them to me :)
buy replacements on ebay - cheap!
IMPRESSIVE, not only the way it withstand the mud but the compact size of the main board. Cand this LCD be salvaged of further autopsied ?. Niceeeeee
In the mud run video, at 10min 43sec - 48sec, when you spin the scope around your back, you can see the water from the tank start _pouring_ out the back of the scope. So, while not much mud got in there, a lot of dirty water did, Glad it ended up working though! That said, Im surprised you didn't just use one of your aerosolized cleaner sprays on the boards as a precaution.
I remember using the lower bandwith (TDS 210 if I remember correctly) version of these and the most ridiculous thing they had was that cursors didn't work in XY mode, you had to count divs by hand (or eye)… I wonder if they just ran out of space in ROM or what.
The braid connects to the nickel on the back case?
hey I could use some position knobs for my 210.how do these fall off its a mystery I tried to pull one off and couldn't move the dame thing I don't understand how they fall off .its crazy if it fell off what you don't pick it up or you are throwing it around and the knobs are flying all over the place and you cant find them. it doesn't make any sense .petpeev
Its easy to clean the LCD too. To cover the LCD himself, there is a Acrylic plate in front of the LCD. With a knife u can remove it easely
Looks like this scope had water in it long before Dave got it.
Judging by the corrosion/rust the bottom 2" was submerged for some time.
I would love to have a more modern scope, all I have right now is a Tektronix 2235 and a Nicholet 3091 ( which is missing it's bubble memory )
5:29 The copper braid thing is to connect ground to nickel plating of back cover. Cheers! S
I was born in '95, crazy to see a piece of gear with the same vintage as myself :-P
Do you have a TDS210 or TDS220 oscilloscope front casing?
The braid could be the earthing contact for the nickel plating inside the back case
You could use heating fan before powering up. It would save the LCD
perhaps the spongey wire braid was to connect that internal shield to that metalized back cover?
I couldn't help but keep looking at the big yellow sticker on the 450 volt cap. Wouldn't the pressure relief being covered possibly lead to cap detonation vs venting if it were to fail?
Probably not. The cap's unperforated metal everywhere but the top, so I think it'll blow through the top whether or not there's a dinky sticker over it.
"Calibration void if seal broken." Fuck mud, it's the seal!
My Lecroy Wavesurfer MSX-b was made in the USA. Only 2 years old.
So i guess there is no review about the ds1054z on it's way?
Ugh, the TDS 210/220. I used that old thing constantly in my electronics classes and even had to do a presentation on oscilloscopes. As a bit of wtfuckery I put in a video of someone playing Quake 1 on an oscilloscope screen. Wasn't on a TDS220 though. It was a Hitachi V-442 with a green and black monochrome screen.
we used the tds220 just last year. it is HORRIBLE
The copper braid looks to me like it would make contact with the nickel shielding on the plastic case? Shielding?
absolutely
That's exactly what I figured
+bososz It is.
i fcking love this guy, he's entertaining and he gives me good grades. I don't wanna go to school anymore i just wanna learn on the internet from people like you
Dave can you take some Rigol upgraded electronics and put in the Tektronix TDS200 series scope for a perfect scope ! Thank you for another GREAT Teardown and Video !
Eyes UP and lights down, tjl Sent by Win7Pro64 w/ADSL
That was full of water, if you watch the video of the mud run you can see water pour out of the bnc connectors.
***** Yeah, but was it a huge POS 20 years ago?
MC74HC393N is a Dual 4-stage Binary Ripple Counter.
send the shield back to strategic finishing which i think is the one in Oregon. Maybe they will fix that.
lol i was amazed why my UA-cam video is so smooth, but it was actually the 60fps feature. its cool!
I wonder how much it would fetch on eBay now... :D
Would of had been really funny if the mud run got the screen fixed :))
Gotta love military hardened stuff. After mud race, water, throwing it around it still works...
throw it in the washing machine and it will be like new
The LCD was probably fine before you powered it up. Seems that thing stood submerged for a few days in water and the flat flex on the LCD got corroded. Did you see how crappy was the underside of the LCD? I bet if you clean it very good with alcohol the LCD will work again. I'd certainly try to fix it if it was mine!
You should auction this for the charity!
720p...50fps? What does that even mean? I thought it was either 30 or 60.
You shouldn't have opened it. The warranty is void now! 😂
can i have it?
tough thing!!
congrats on the mud run btw!
Seeing that this says Australian Defense Force, I'm curious as to what kind of applications this would be used in. What kind of handheld oscilloscope needs would the military need?
There are people repairing stuff in the field too ;)
You know that guiding system on the helicopter? It has electronics in it!
I really had no idea, but that's amazing. Thank you, so much, for setting me straight. :]
Michael Garland You're welcome!
Heh, I have a 1950s vacuum tube scope. I think it is 30 kHz
Ault makes very good power supplies.
that thing must've sat in water for some time before they even auctioned it. despite that its held up, even powers one and shows the screen until it's calibrated. lolz
If you have another scope of this model you can scrap this one for parts.
Still using one at work, not something I'd be willing to give up without a fight. The only thing I'd ask for is another channel. Give me a four channel scope and I'd probably still want another channel.
And just like that I go out looking for a nearly 20 year old military oscilloscope.
Yo Dave can you do more Oscilloscope torture test? They're expensive so I can understand if not.
I love tools you can beat to hell and still work, none of that sensitive over engineered stuff for me, I want something I can really on all the time.
Actually... this is my only digital scope... Poor man I am
Still not sure if the "floatation pack" is real or not...
can confirm that you can resolder the BNCs
Well after all I'm reading about these TDS units, I guess I will fix this one up and post it for sale and hope to get enough from it to buy a new Hantech. I bought an Embest PC 50mHz unit as a spare to this one but I'm not having much success getting the software downloaded and it didn't come with any lead or a disc. I'm not impressed with the screens on these even in perfect condition. So here I go to a youtube review for a Hantech and post a comment to see what comes back on it. One a side note, I was thinking that the recall ground lead mod is not real well thought out because there's no way to disconnect it from the power recepticle without un soldering it from the main board from what I can see. I just added a lead into my unit but I used an 0.093 series housed plug connector in it so the main board can be disconnected from the power supply if it has to be pulled. You all have fun with your old scopes. I'm going to be working towards some newer stuff. Stepping up to a 100mHz model or higher. I already have an auto style 8 band Hantech and it seems pretty nice. I never really got a chance to use it before I retired from auto repair, and I still need to acquire a bunch of speciety leads for it to be really useful. That is where stuff starts adding in to the cost of owning one of these.
Next: The ESD properties of wet mud?
Can't be all that bad?
Maybe that's the way to do eletronics lab?
is the nickel plating is a TEMPEST countermeasure for the mil?
Mine is a commercial one, and it has the nickel plating inside.
Jesus. I just noticed the 60FPS. Such a strange feeling.
Like a soap opera...
superdau Daves of our lives.
sghost128 If you want HD and 30 fps, you can watch the video on any browser that is not chrome or chrome based and youtube will "gladly" drop it.
superdau
Glad I'm not the only one who makes that association.
Dr_Kachu san
My Firefox *tries* to play 50fps, but my computer can't quite keep up. It averages something like 40fps (right click video and hit stats for nerds)
I was waiting for the magic smoke to escape.. disappointed. 😁
"oh so that's why the screen glitches"!!
I have that one
I'll bet ya the don't make them like that anymore nowadays
Bough one with my hard earned money, and bough the communication module later. Nice scope for hobbyists.
How much did you pay for each of them? Just got a tds220 for $70 delivered. But can't seem to find a cheap enough extension module. Is it worth it nowadays?
@@ZonaALG " Is it worth it nowadays?"
The extension module?
The math extension can do FFT and has a GPIB, parallel and serial port. It depends if you plan to do some FFT or dump screenshots often. If you can find a module, for not too much, it would be worth it.
@@physnoct great! Thanks for your response!! Do you know if any compatible module would add fft? Or does only tds2mem does?
What model did you get?
And are you talking about fft directly on the oscilloscope? I could just find this pages to help with:
pcwww.tek.com/oscilloscope/tds210-software/dos-program-display-fft
www.tek.com/support/faqs/what-difference-between-openchoice-desktop-and-wavestar-wstro-software-programs
Your extension module part name would really help me out.
@@ZonaALG
I think there were only 2 modules made. A communication module with the 3 ports and the maths one, which also have FFT and 3 ports.
The FFT is displayed on the scope itself. You press on MATH menu and there should be FFT on the right of the LCD screen.
Here is the model number TDS2MM.
I would buy it jajaja will you sell it?
You could sell it on ebay and give the money to charity. Just a thought.
This is actually a necropsy, not an autopsy (unless this scope happens to be human, which seems unlikely).
I have the 60Mhz one, fully working. My boss gave it to me for free ^^
Why the hell would people winge about something done for charity. If anything it was funny.
lol, you have probably seen some of the comments I get about dismantling stuff that is either damaged beyond reasonable repair or simply obsolete, there are some very strange people out there who have some kind of attachment to material objects, regardless of age or functionality.
While in a perfect would it would be nice try and save everything, it is not always practical. Plus some stuff does not have any real value of any kind.
O.o poor lil scope. I could use a scope like that...
Hi!
You sure that's nickel? I wouldn't expect nickel to corrode like that unless it was in direct contact with water for a long time.
Just take that apart and clean the screen,the lines is basically that the pin in tape is dirty or brake.The PCB shut be clean with brash in isopropanol alcohol.
BTW. Please send me this to Poland country,here this cost 5000 you now. :)
Sign it, date it and auction off for charity!
use a vacuum to take the water out of the screen :)