Dave reminds me of myself when I was a child. I would get a new RC car and the first thing I did was take it apart, then spent a week putting it back together so I could actually use it :D
@EEVblog9 жыл бұрын
+Barnacules Nerdgasm I never grew out of it, now I'm married with two kids and do it for a living :->
@thekaiser43339 жыл бұрын
+EEVblog -- Noooo! Not another oscilloscope. You and oscilloscopes is worse than women and shoes. When are you getting back to finding the fault of that Samsung LCD TV? Fault-finding is what oscilloscopes were made for.
@laser-on-off9 жыл бұрын
+The Kaiser Hehe the Samsung LCD TV was interesting, indeed.
@DavidScheiber9 жыл бұрын
well ain't KZbin connected
@marcaxe9 жыл бұрын
+EEVblog Glad you're not a doctor or biologist, you'd've taken the kids apart...
@EugeneKhutoryansky9 жыл бұрын
We have come a long way since those green screen oscilloscopes that we used when I was in high school.
@robertpk9 жыл бұрын
+Physics Videos by Eugene Khutoryansky not to mention prices that are amazing those days :)
@kyoudaiken9 жыл бұрын
+robertpk I bet that this thing won't last 5 years.
@iPelaaja19 жыл бұрын
My university still uses GW Instek GOS-6050 oscilloscopes... Cant find any production date of them anywhere, would be interested to know when that model came out.
@shomonercy9 жыл бұрын
+BloodySword I bet it will
@shadowxelnaga9 жыл бұрын
+Physics Videos by Eugene Khutoryansky We still use them at the "Materials for Electronics" lab.
@seephor9 жыл бұрын
This is why I always say you should friggen turn it on at least once to make sure everything is working so you can rule out anything you fucked up after taking it apart.
@Maxisokol9 жыл бұрын
+seephor Same thought I had - were those noise issues there BEFORE the teardown? We'll never know.
@Graham_Langley9 жыл бұрын
+seephor Years ago with any new bit of kit it was check it worked then take it apart to check it would continue to work.
@GautamKumarGoswami8 жыл бұрын
+Seephor & Maxiskol S : I totally agree with you. Dave should have done a pretest before the usual teardown - I also think so .
@DeeegerD9 жыл бұрын
I can't understand all the whining about the layout and size - I like it - roomy for the fingers, simple and clean and the yellow is rather nostalgic :P Not everything has to be cram packed with the controls so close together that the eyes are always straining to pick one out from the other while the fingers are always hitting an adjacent control. Very nice in my opinion.
@TheChipmunk20089 жыл бұрын
+Digger D Yes, this was my feeling too. And people are bitching about the colour of the plastic too. White is VERY ok in a lab environment, but take something like that out into the field a few times, and it's gonna show every single smudge
@vladsinger9 жыл бұрын
+TheChipmunk2008 Oddly the product photos on their website seem to have quite a different dark blue/light grey color scheme rather than the dark grey/beige on Dave's GDS-1104B. www.gwinstek.com/upload/website/cc9d1f20eda3d9aa214276327f3eba4d.jpg
@clems69895 жыл бұрын
I agree other than the lack of shielding. How important ? Ehhh who knows, it realky depends on the environment used in i suppose..
@sbromley67392 жыл бұрын
A well-designed PCB can reduce the need for external shielding. Ground layers in close proximity to signal traces can work extremely well. There’s a lot of jumping to conclusions and raw speculation in this tear down. The proof is in the pudding, so to speak ;-)
@neumonol8 жыл бұрын
At 31’ 30” from the video, the oscilloscope was set to 4 channels in operation, the Timebase was 5ns/div, and the sample rate was 250MSPS (sample period was 4ns). Under these settings, waveforms were plotted by sin(x)/x interpolation points. The display seemed to show small periodical noise, which was caused by round-off error from the interpolation point calculation. The minor inaccuracy is far less than the specification of DC gain accuracy (approximately 3%). The related problem from the video has been corrected by beta version firmware. Official version firmware will be released in early March. Dave stopped the above-mentioned waveform and zoomed in to observe it. (Vertically zoomed in 100x, horizontally zoomed in 20x) When Zoom in waveforms and the real sample points are not sufficient to reveal the original waveform, GDS-1000B will adopt sin(x)/x interpolation method to plot the original waveforms. In which, the displayed waveform was expanded from one step to more than one hundred steps (4~ 5 div). Oscilloscope’s AD Converter has only 8 bits resolution. Therefore, waveforms observed under this circumstance are meaningless. With the same operational procedures, oscilloscopes from Tek and Keysight showed similar waveforms. This situation is the same as continuing to zoom in an image to see a mosaic image. GW Instek
@fjs11119 ай бұрын
Has GW Instek considered offering a upgradable firmware that is open sourced (differing from your main scope software) so that you can still protect your IP, but I would like to develop a new build for dev purposes. Not so much as a scope, but multimeter, or reconfigurable lab instrument etc. taking advantage of the Xilinx SoC. Your scope has an advantage to many in that it's easier to develop when you have to deal with one system IC as opposed to FPGA + ARM..
@yaosio9 жыл бұрын
They are using positive air flow to move the air, the fan is only there to increase the air pressure in the cavity. When you take the shield off it's not being used as a heatsink. I bet the only thing that needs cooling is the power supply, and the slight increased air pressure is enough to do it.
@sciencetestsubject9 жыл бұрын
11:50 the fuse is the red block next to the thermistor it says T 2A 250V
@Graham_Langley9 жыл бұрын
+Erik Bruijn Agreed.
@AlexandreKandalintsev9 жыл бұрын
Dave, may be it is more reasonable to play around with it before tear down? I'm a little bit worried that the performance can be affected by re-assembly...
@igsaturation8 жыл бұрын
Designed very well, IMHO and uniquely. GWInstek has been around for over 40 years and I can't recall in that time, their devices not living up to its spec sheets once released to the market, and built to last. Their main problem had always been functionality vs cost compare to competitors. Before the Rigol and Owons, they battled against Leader, Trio, B&K, Radio Shack, Heathkit etc., and are still around, and many prior competitors, aren't.
@TheBrightPixel9 жыл бұрын
I actually like the styling of this scope. For my taste it "looks" nicer than the Rigol on the outside. On the inside is another story.
@teardowndan53649 жыл бұрын
Gotta love those tear-downs and repairs where you realize you have some spare parts just when you thought you were done.
@AttilaSVK9 жыл бұрын
I'm glad I have the Rigol DS1054Z (maxed out, of course), however as you mentioned, it's good to see some competition in this price range as well. I prefer the Rigol because of the matte screen, glossy LCDs are big no for me on test equipment. The only positive thing about the GW are the separate controls for each channel, but even that won't make me sell my Rigol and get a GW instead...
@KyleRepinski7 жыл бұрын
A dual-core Cortex-A9 is no slouch, interesting choice. I bet it costs more than a TI Sitara plus separate FPGA, but as you demonstrated the results speak for themselves. Very responsive. I think they've gone with the separate processor board because it's (going to be) used in other products, they can pump out a higher volume of the processor board to potentially lower their overall costs across their entire line of products. Just plug it in to a different device with different programming.
@MoneGetsIt9 жыл бұрын
I have no idea what you are anyone in the comments are talking about, but I love this channel. I am going to beige watch until I understand! Used to love tearing stuff apart when I was young. As a journeyman machinist who has worked with many an EE this is awesome stuff!
@LordPadriac2 жыл бұрын
The Rigol has one big advantage over the Instek. All of the software that makes the MUCH more expensive Rigol's in that series much more expensive are already present in that Rigol. They're just software locked. There still exists several websites where the more expensive license key can be generated turning that Rigol into a $1000.oo machine. If you thought ahead and bought a plus version you can also get the 16 Digital channels once they're unlocked if you buy the digital probe cable.
@petermikus2363 Жыл бұрын
Apparently the is way to hack the 50mhz instetek to 100mhz but i didn't find much about it apparently
@OsmosisHD9 жыл бұрын
The two chan is only 300usd,. not bad at all! lots of bang for bucks. Seriously considering buying this one, my old one is a Philips PM3267 so yeah overdue for a upgrade (it's actually older then i am..) Heck, the PM3267 goes for around the same amount @ ebay second hand. Oh well, practically free upgrade! Always welcome
@oldfilmguy94139 жыл бұрын
New to all of this so I really, really appreciate all the hard work. I will be working my way through lots of videos I am sure. Cheers! Robert
@TheChipmunk20089 жыл бұрын
I like the look of the GW Instek to be honest... that 'wasted space' means it's easy to grab the button /knob you need. Depends how pressed for space you are I guess.
@xmenken15 жыл бұрын
It is incredible to show us what is inside this device.
@MicrosiMe7 жыл бұрын
received my GDS-2102E days ago, an amazing oscilloscope, Amazing large screen, LOT of nice and cool features, super responsive, super fast. I also like the screen saver if the oscilloscope is not in use. Best deal.
@PeterWalkerHP16c9 жыл бұрын
For a cheap scope this is fine! I like the larger layout. I hate occidentally nudging nearby pots when adjusting another. I like the separate pots. I like the colour but that scheme is not the only one available. All in all I think this a brilliant scope for the beginner and enthusiast. My first CRO ever was a cheap charlie GW and it was hammered with use for over 30 years and still going strong until stolen.
@theoldwizard9989 жыл бұрын
This is the future of complex electronic devices, FPGA and multiple cores on one chip. It will take a strong, diverse development team to bring products to market but the close integration on the same piece of silicon will make this technology the winner in the long run. The next gen Zynq (UltraScale+ MPSoC) should be out soon. Still kind of a solution in search of a problem !! Xilinx needs a version with less cores on more on chip RAM and Flash.
@clems69895 жыл бұрын
I really like the separate vert controls. And it uses the entire screen for waveform display. Whereas the Rigol wasted the sidebars by not making them hide able. ..All in All I like it !
@tesla5009 жыл бұрын
Separate processor board so the large main board can be lower tech (2 layer?)
@EEVblog9 жыл бұрын
+tesla500 Possibly. But overall (separate assembly runs, both double side load, different BOMs etc) I'm not sure that would really save you anything. Esp if you make the board as small as possible.
@Ts64519 жыл бұрын
Perhaps they are going for a modular design, and they can use the same processing board across several different products.
@glmoffet189 жыл бұрын
+tesla500 Any videos in the foreseeable future? :)
@tesla5009 жыл бұрын
Yep, some more teardowns coming up soon.
@jerzmacow9 жыл бұрын
+tesla500 I saw this cool gun looking thing on your desk in one of your videos, you should do a teardown on it
@thekaduu9 жыл бұрын
I'm loving the reassembly sound effect.
@Barnacules9 жыл бұрын
If you are ever in the United States specially the west coast, look me up. I'll buy you a pint!
@TheRogerx39 жыл бұрын
+Barnacules Nerdgasm Dave is not a drinker... it will have to be milk : )
@EEVblog9 жыл бұрын
+TheRogerx3 Make it a rice milk protein drink please!
@EEVblog9 жыл бұрын
+Barnacules Nerdgasm Thanks, will do. Young kids make it hard to get across the pond unfortunately. I'm always having to turn down paid trip offers :-(
@PetruV9 жыл бұрын
+Barnacules Nerdgasm damn you everywhere I look
@wickeddr9 жыл бұрын
+EEVblog glad to see your not an alcholic Dave it seems to be sort of an epidemic amongst youtubers
@ChipGuy9 жыл бұрын
Very nice teardown. Love it!! When I look at the display side with the "wasted space" then it looks like there is space for a multimeter and logic analyzer extension. The 4 round holes and the one rectangular hole are suspicous. That Zync part costs around $90 at Digikey, wow. Would not have expected such an expensive part in such a low price test gear.
@Tranzeis9 жыл бұрын
Yo yo, Jamicon is actually well known in the industry and they're pretty good :)
@ingenfare9 жыл бұрын
This was an interesting teardown. A lot was different on this scope then others. Mostly not for the better but interesting with the seperate prosessor board. I was afraid that we would not get to see / know about the prosessor / FPGA but Dave fixed it for us:)
@RachelMant9 жыл бұрын
+EEVblog - That "processor" runs an ADP5052 for it's local power regulation - a chip specifically designed for running Spartan 6 FPGAs. Spartan 6's also have inbuilt LVDS drivers, so can directly drive an LCD. This should hopefully explain what's going on as between it's inbuilt DDR2/3 memory controller (up to two chips, as shown on this board) and inbuilt LVDS drive, this looks for all the world like it has to be a Spartan 6 on there. Interesting, though, that they got away with using it to power a Zynq..
@z1power9 жыл бұрын
I'm willing to bet an Esinomed tablet that this is a prototype unit. Production units probably won't have the glitchy display,, they will have the screws in the right place, fan will be pointed the other way and the Nippon caps replaced with Reliable CapXon.
@robbowman87709 жыл бұрын
+z1power I'll take that bet :)
@helipro5559 жыл бұрын
i hate it when they put those useless nippon caps in. Stop being cheap and buy genuine capXon!
@MicrosiMe7 жыл бұрын
GW-Instek is much higher in quality compared to the RIGOL, I saw many videos where it shows weakness in measurements for the RIGOL. I am using the GW-Instek since years, Just ordered a new one, arriving in a week. I also have no problem regarding the PSU quality, as long as it works perfectly. so its pointless to talk about the size, or the fan.
@isoslow9 жыл бұрын
I've seen enough after 15 minutes and I'm getting the Rigol!
@dan_loup9 жыл бұрын
The neon is the ARM equivalent to the SSE instructions, and they boost the floating point math speed quite a bit, specially on stuff with vectors and matrixes.
@maniacaudiophile9 жыл бұрын
Jamicon is a Taiwanese brand cap that is mostly known in the audiophile circle for being the caps loved by Brit firm Musical Fidelity. I've swapped quite a few dried up Jamicons from MF machines before, MF love to run their amp with a lot of bias current, and that really did a number on the Jamicon caps. Not sure if they have managed to keep a better seal now.
@stefantrethan9 жыл бұрын
Those four plastic bosses below the display at 12:00 look suspiciously like 4mm sockets for a DMM option. The square cutout to the left, digital channels maybe?
@forresterickson62253 жыл бұрын
I have and love this scope. I have yet to figure out how to use all of the trigger modes and features and would benefit from a real world application of same. I found this video (for the second time after some years) while searching for how to use in hopes of learning the features I have not yet figured out (or UN learning my mistaken ideas).
@forresterickson62253 жыл бұрын
I found this video again after searching for a schematic with out success. Not quite brave enough to take mine apart as I am dependent on it. Schematic anyone?
@4IN140949 жыл бұрын
The fan is OK as long as the static pressure is enough to supply continues airflow.
@hikaru-live9 жыл бұрын
I think GW Instek is hedging their bets. The same core module, especially this single Zynq design, can be used in a very wide variety of things so they can run those in bigger volume. Also since the Zynq have both ARM and FPGA at on place they can effectively attach the ADC directly to the AMBA of the ARM core, allowing better throughput than going through some standard interface.
@vencibushy9 жыл бұрын
Product review please! :) Also I'm not sure where you get these prices from. This is the price for the 50Mhz model. GDS-1104B goes for about $740 in the US. GDS-1054B cost €880 at element 14. Could you point a seller that holds better prices?
@vencibushy9 жыл бұрын
+Evan Cirelli Yeah I saw the price on tequipment.net Sadly my local official GW Instek distributor asks about €550 VAT incl. for this model. Rigol 1054Z goes for €408 VAT inc. here.
@Retep45659 жыл бұрын
+1, I don't mind the teardown, but I'd rather like to see a review of this unit and see how it compares to the Rigol DS1054Z first.
@vencibushy9 жыл бұрын
+Retep4565 IMO the Rigol will always be the better choice because it can be hacked to higher BW and all other sort of goodies. However if the buyer isn't concerned with hacking the Instek could be a real competitor. One other fact is that this scope's price is much higher in Europe than Rigol's.
@revealingfacts4all9 жыл бұрын
separate processor board allows them to use it across different models and maybe even different equipment...
@Stjaernljus9 жыл бұрын
i think the multiple boards is a way to standardize/lower cost between models
@LexLinux9 жыл бұрын
I do the whole "leaving the heatsink out thing" on a daily basis, what sucks more is then putting it back together for the second time, only to notice you have a spare CMOS battery on your desk lol.
@thomasmoore81422 жыл бұрын
I have a GW INSTEK GDS1202B, two channel 200 MHz version, and I can't seem to get FFT to work. I'm sure I'm not getting the settings right or something stupid like that but their manual is a bit scant. I also have a TEK 2440 and I like the controls a bit better just a lot less bells like FFT to mess with. Great teardown, loved it.
@Galfonz9 жыл бұрын
I think one of the latest video game console's uses a similar air flow scheme. The reviewer said they did it that way so they could use a higher air flow volume at lower speed.
@sanderkoster96809 жыл бұрын
Hi Dave, they might be original Nippon-Chemicon Caps, but I know for a fact that Samyoung has used the same logo, even with Samyoung written inside of the logo, so I would not trust them 100% on it beeing actual original Nippon Chemicon caps. (type mentioned here is a Samyoung photo flash cap type CE P 350SV290uF) Jamicon is a fairly standard reasonable quality cap for consumer products here in the Netherlands. I haven't tested them but the products that use them are of reasonable consumer quality. (Amplifiers, function generators (Velleman), Toslink DAC to Cinch etc.) Keep up the great video's, love them!
@SootySweep229 жыл бұрын
There's a low hum in the audio. Could be my end but it's definitely there. Thought you might like to know.
@maddercat9 жыл бұрын
Can you give a basic description of what these testing devices do for us nubs that just like watching your channel? I've never used an oscilloscope, and would just like to know how to use them generally. I get they can be used instead of a multimeter for a lot of applications, but where would you use them instead of a multimeter, and what information do they give that you would act on vs a multimeter?
@jakubbendzala93689 жыл бұрын
36:10 The artefacts are exactly in position of samples (dots) may be it's intentional.
@Nukle0n9 жыл бұрын
I really love ya teardowns Dave, and I guess it's your field of expertise, but watching oscilloscopes, signal generators, etc getting torn down just gets kinda samey.
@Mrm0nG09 жыл бұрын
Solder looks pretty good, solid - even the re-work/ touchup, PCB looks clean, didn't se any micro solder balls or flux on the PCB's. The pulses or bits on the channels are they some type of gnd loop from "under shielding" or a PCB layout? Would a filter on the channel output clean that up?
@pxidr9 жыл бұрын
11:55 you say there is no fuse protection in it? What is the red plastic thing? "T2A"... seems to be a fuse.
@milamiglia24379 жыл бұрын
Good video, Dave It's a fairly clean design, as I have been advocating, you can do super simple layouts these days. And I would argue you could reduce that much further still. All that metal enclosure thinking is quite irrational. They are not building a tank. Of course you can get rid of all the buttons as well and the accompanying boards and just make it the obvious tablet form factor and get rid of all the irrational legacy thinking. I would also like to see isolated channels. ADCs are so cheap now and shared ground is really unprofessional. You could do 1GS/s on the first channel and less on the rest. The power supply is also very old school thinking. That should be a tiny resonant converter on the board and no trafo or lyt caps. Resonant high frequency is so beautiful.
@ciprianwinerElectronicManiac7 жыл бұрын
You've got to be joking me. Handicapping a device even further with worse layouts, devices these days with their touch screens are hard enough to use, also the metal is for shielding, resonant power supply? What the hell do you mean with that? Have you got any experience with a how a power supply should even work?
@nulano9 жыл бұрын
38:00 Looks like you can use USB or the internet or something to install those apps. Why else would it ask for a Remote Disk?
@ceriand9 жыл бұрын
Interesting that the diff pairs for each channel to the ADC don't look like they're length matched. May not matter for 100MHz.
@TheChipmunk20089 жыл бұрын
2ch 70MHz one sounds VERY good to me (I do mostly low frequency analog troubleshooting stuff) so... yes. TY for the info
@NourMuhammad9 жыл бұрын
so dave, which do you recommend as first oscilloscope this one or the rigol DS1054Z (for beginners) ?
@joogosa9 жыл бұрын
Dave, you missed the weird looking 7-pin SO-8 chip (19:00).. Whats up with that one?
@DjResR9 жыл бұрын
For low price it has bright LED's under the buttons at least so you can see the the state of the buttons under bright light. Could the yellowish front panels be glow in the dark material? That would explain the odd color.
@redtails9 жыл бұрын
It looks like a really nice oscilloscope
@shariqkudcs Жыл бұрын
Did you check the crosstalk between channels of this scope? That 31:36 is crosstalk due to single adc multiplexing..... all these junks are equal. I can make a better scope at home in that price
@OneBiOzZ9 жыл бұрын
if you take your pass/fail and put in a noise source wouldn't that give you your waveform updates per second from the pass/fail output?
@EEVblog9 жыл бұрын
+Alyx BioHaz Not unless it has zero overhead pass/fail hardware detection (unlikely), otherwise it will be slower and not an indication.
@syproful9 жыл бұрын
Any new Rigol comming up or any other crazy value item ? Need to buy a new scope asap.
@PlasmaHH9 жыл бұрын
most important question: can you software upgrade the 50 to the 100 ? anyways that totally different processor board design looks weird, maybe they have some very generic module that the put in everywhere? or even bought from somewhere else? it even has a different colour
@Zauviir9 жыл бұрын
Does it do any i2c or spi bus decoding stuff? Maybe thats what the app stuff will be for.
@RayIzzle1007 жыл бұрын
That fan only moves the still air to keep the air temperature ambient. "To keep it from heat soaking".
@leonerduk9 жыл бұрын
I wouldn't be surprised if that periodic display anomaly turned out to be related to the almost total lack of screening inside the thing. No metal can around the PSU? What were they thinking?
@EEVblog9 жыл бұрын
+Paul “LeoNerd” Evans No, I think it's a display processing algorithm issue, not a sampling/noise issue.
@ryanvoots98279 жыл бұрын
+EEVblog Maybe something weird with the intensity display dithering that they're doing when they're interpolating at such fast speeds. If the samples are really flat and they chose a bad method of drawing the lines that expects a curve instead of a flat line it could be choosing to display weird at the "corners".
@manne3d8 жыл бұрын
was almost set on the Rigol 1054Z but it seems so slow on the screen update. All the people who use the Rigol...u dont mind that?...twist a knob ...half second later it updates the screen...how can u use that? I would love to see a more in depth review on this one!
@YeOldeSpellbooke9 жыл бұрын
Would love to see an more in depth practical use review of this scope :) Im curious about that, what i guess could be a interpretive high res feature at ~ 34:35 ? :)
@Darryl6039 жыл бұрын
Hi Dave, Are you sure that the fan doesn't move the air from the inside out, because that would make more sense. It would draw the air from the side vent over the power supply and out the back. Thanks for sharing...
@Ard-War9 жыл бұрын
+Darryl Landry From the blade contour, I think it's pushing inward.
@Darryl6039 жыл бұрын
Hi Ardian, It seemed to me, that if the fan turns clockwise, it would be pushing air toward the outside of the case and the angle of the blades suggest that as well. Thanks for your input.
@theJmanStriketh9 жыл бұрын
+Darryl Landry Small fans like this (e.g. PC case fans) traditionally blow away from the "top" of the fan and toward the frame supports. At 8:10 you can see the top of the fan and no supports, so it probably pulls air into the case.
@Darryl6039 жыл бұрын
The design just seems bass ackwards to me! Thanks for your feedback
@TheGodbaba959 жыл бұрын
Hi dave I was thinking you can do a video series like power supply design, but design an oscilloscope this time i am pretty sure it would be the most complicated and fun thing in the world. keep the good work up!
@fabimre9 жыл бұрын
Dave, about the controls layout: I like it as it is, better than the Rigol, because of Ergonomics; I've got thick vingers!
@joshadler72099 жыл бұрын
+Imre Fabian I don't think the thick finger argument is that compelling. My fingers are thick, I have the Rigol, and I never thought "gee, these buttons are too close". What I do like is the separate buttons for each channel, as the Rigol layout, while functional, is annoying when trying to change the vertical on multiple channels. Not to mention pushing the variable button to select. I hate that.
@izimsi9 жыл бұрын
Maybe those processor boards might be shared between various scopes.
@doctorazizli7 жыл бұрын
hi Dave. I'm going to buy an oscilloscope (400-500$ budget) and stopped my selection on: 1. GDS1102B - because of 100mhz 2. Rigol 1054Z (4 ch?) 3. Analog one (still can't decide which one, Hitachi or Tektronix or which else. Can you please advise and help to decide? P.S: I'm in Baku, Azerbaijan and working with power supplies (for example Alpha series by TDK Lambda), AOM drivers by Panasonic, laptop motherboards and other stuff.
@TrainMasterMan9 жыл бұрын
Totally off topic here, but help would be appreciated- Im building a circuit with an LM3914 and the first segment is dimly lit- when I add other segments the first one its still lit in each segment >:( Other than that a circuit works fine. My solution is to put a resistor (4.7k) to positive. It will only add 15mW to the chips dissapation. Will this be okay??? I dont mean to be starting anything on youtube and i know this is a fourm queston I just wanted (perhaps) a fast responce- and what other than youtube!
@Manawyrm9 жыл бұрын
Uhm, I think Jamicon are actually quite high-quality caps. I've been using them for years because our local electronics shop sells them and I never had a problem with them :)
@gillianseed44199 жыл бұрын
+Tobias Mädel (Manawyrm) yeah, i never heard of any problems with them. maybe dave just had a brain fart or something they arent tier 1 japanese, but they arent "one hung low" brand either.
@Graham_Langley9 жыл бұрын
+Tobias Mädel (Manawyrm) They're made by a Taiwanese company that's been around since the early '70s, and I can't remember having to replace any of their caps.
@fieldsofomagh9 жыл бұрын
Which to choose for a low end scope ? The next assessment video might make the decision a bit easier.
@ElectronicMarine9 жыл бұрын
+Tom OConnor htere is nodecision, rigol is so much better, then with the software crack you realy have a nice machine... only for the serial decoding capabilities and rigol wins...
@BogdanSerban6 жыл бұрын
This is almost double in price compared to the Rigol. How is it cheaper?
@yajivv3 жыл бұрын
You spent some time discussing capacitor brands, can you throw some light on how to identify good brands for passive components? E.g. Design calls for 10pf cap. Digikey lists a dozen+brands... How to figure out which are quality?
@johncoops68973 жыл бұрын
By reputation of the brand (Rubycon, Chemicon, Elna, etc), and then by reading the "Group chart" that they all publish. The Group Chart is the visual matrix that shows which series of their caps has lower impedance, longer life, lower cost, higher temperature, etc etc and how they compare to each other. You also need to have an understanding of which type of capacitor is best for each application. Ceramic, Mylar, poly, electrolytic, etc each have their advantages and disadvantages. There is no perfect device, each is a compromise, and engineering is the careful analysis and selection of which compromises will be acceptable. The #1 factor for component parts in almost all real-world production environments is always COST, irrespective of the selling price of the final finished device.
@ironman72619 жыл бұрын
was going to get the rigol 1054z but i will have to take a look at this one hope to see a video on you useing it and your impressions compared to rigol. my b&k 15mhz scope circa 1977 finally died :(
@ElectronicMarine9 жыл бұрын
+iron man don't boder, just take the rigol...it's so much better...
@zrobotics9 жыл бұрын
+iron man Second on the rigol, that is a very known quantity (i.e. hackable) whereas who knows how long you'll have to wait to get your free 50MHz on the GW
@SuperDragon2469 жыл бұрын
hey dave, or anyone who has an opinion, im looking for an entry level scope. Would you recommend a 50mhz with 4 channels or a 100mhz with 2 channels? If it makes a difference I would be using it for audio as well as microcontroller circuits.
@simonparkinson10539 жыл бұрын
Nippon Chemicon caps in the PSU... but secured with that horrible glue that goes conductive after heat/time. I'm surprised they still even make the stuff!
@MSI2k9 жыл бұрын
Dave: Jump to conclusion then correct himself. Rinse, repeat.
@johncoops68973 жыл бұрын
Not always. Sometimes he jumps to conclusion, and doesn't correct himself.
@NatureAndTech9 жыл бұрын
Should have bought the GW-Instek. I hate the layout of the Rigol, the multi-function knob, and that you can not hide the menus.
@FrankSandqvist9 жыл бұрын
That warm white plastic on the GW looks awful. Looks like the bromide has seeped out!
@Starchface9 жыл бұрын
+Frank Sandqvist That's an old bromide if I'm not mistaken.
@AdrianHiggins839 жыл бұрын
good for a first scope for home hobby use?
@EEVblog9 жыл бұрын
+Adrian Higgins Certainly!
@MarkDennehy9 жыл бұрын
+EEVblog Ah, but better than the Rigol 1054Z?
@woopsserg8 жыл бұрын
+Mark Dennehy Better but you cannot hack it (yet).
@forresterickson62253 жыл бұрын
The op amp on CH2 do an inversion perhaps?
@WesQ45219 жыл бұрын
Those NCC caps in the PSU are bit funny color to be genuine NCC. I've seen lots of fake NCC caps in the past and those have the same crusty look on them. Can't be sure though...
@MrGopiii9 жыл бұрын
cool vid as always dave =)
@pepe66665 жыл бұрын
man i was so keen on this & even looking forward to modding the fan but that noise artifact kinda makes me a bit eeeh :/
@alfredwilliam27579 жыл бұрын
Hi dave i have , im not a professional in electronics, but i found that most "affordable" oscilloscopes ranges between "50 and 200Mhz", though i found on the internet that most usefull radio frequencies ranges from "300 Mhz to 3 Ghz" (Television broadcasts, LAN, bluetooth, GPS, amateur radios, Mobile phones), or even from "3 to 30 Ghz" like (satellite television broadcasting, LAN, amateur radio), and oscilloscope that has a frequency up to these ranges costs a fortune, does this means that "ordinary people" can't analyze these frequencies or am i missing something.
@Ard-War9 жыл бұрын
+Alfred William "Ordinary project" are almost all about toggling microcontroller pins at
@alfredwilliam27579 жыл бұрын
thank's, but for someone studying radio and tv transmission stuff, wouldn't need a more powerfull oscilloscope, i mean, radios and tv's are not really some advanced stuff, how did they to study their waves in the old days.
@BenjaminEsposti9 жыл бұрын
Yes there is a fuse in the power supply.
@stuartthegrant9 жыл бұрын
At last a decent scope that I can afford. I will treat myself after Christmas so thanks for the Teardown Dave.
@theoldwizard9989 жыл бұрын
Competition is a GOOD thing ! Processor and FGA one one chip is definitely the way to go ! Rigol is going to have to change their strategy !! I would love to see someone come out with a 4 channel, 12 bit scope.
@ferrabras4 жыл бұрын
Different boards to avoid digital noise into the analog?!
@OneBiOzZ9 жыл бұрын
Is this the teardown the size of the bench you were talking about? ;P kidding ... another great teardown! ... im not very happy with the construction and will be sticking with the rigol!
@MrZANE429 жыл бұрын
Seems that the apps are downlaodable from their website. They have an DVM "app.", filteringing "app."and a logger "app.". Seems to be an interesting starting-point of some hacking ;-)
@power-max9 жыл бұрын
Just imagine scopes as thin as TVs are nowadays! New xyz scope, whisbang specs, thin as air!!!!
@Coolkeys20099 жыл бұрын
Jamicon have been around for years. I thought they were an OK brand for capacitors, they are a Taiwanese company.
@alynicholls32306 жыл бұрын
they are exellent caps, certainly not cheap rubbish.
@johnnymotorboat88246 жыл бұрын
Jamicon are half-assed good. Very similar to lelon