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Maximum Real-time Sampling Rate: 1Msps
Accuracy: 12Bit
Sampling Buffer Depth: 1024 bytes
Analog Bandwidth: 0-200KHz
Vertical Sensitivity: 10mV / Div - 5V / Div (1-2-5 progressive manner)
Input Impedance: 1MΩ
Maximum Input Voltage: 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)
Coupling Modes: DC / AC / GND
The Horizontal Time Base Range: 10μs / Div - 50s / Div (1-2-5 progressive manner)
Supply Voltage: DC 9V
PCB Size: 117 X 76mm / 4.6 X 3in
Screen Size: 52 X 40mm / 2 X 1.57in
Tips:
Package Included:
1 X DSO 138 digital oscilloscope board
1 X Probe
3 X User Manual(English)
Andrew Duplay
2025-08-27 18:14:11
I have had my DS0138 Digital Oscilloscope for a while, but did not use it as much as would have liked to, because I was always afraid of accidentally shorting out the exposed PC board. Finally I figured someone made a case for it, which brought me to this. The finished product is spectaular! Clear acrylic that still shows the inner workings and allows access to all of the necessary connections.In my opinion here are the up and down sides of this DIY case kit:PROS:- Beautifully precision cut acrylic pieces.- When assembled, VERY solid and attractive.- External access to every necessary connection, including both power connections, the input connector, test point, and programming jack.- Extra button/switch extenders (to compensate for the one you will inevitably drop :)- Reasonably priced.CONS:- Because it IS precision cut, a patient steady hand is required. Don't drink a gallon of coffee before attempting to assemble this kit- If you have poor eyesight, lots of light is recommended. Clear acrylic is hard to see in low light!- Removing the paper from the acylic sucks, but it always does.- You may need a pointed tool, such as a toothpick or small screwdriver to line the push buttons up for the final assembly of the top piece. I used a sharp-pointed pair of soldering tweezers.- Care should be taken when removing the protective paper from the acryic. I did break one piece near one of the thinner cuts. Fortunately is was an internal "shim" piece and was not vital to the structual soundness.- The assembly instructions are not included. Rather, ther are availble here on the Amazon listing, shows 4 small acorn nuts for the top, to give it a smoother, more finished look. The kit only included regular hex nuts. They still work fine, but are not as aestheticly pleasing.- There is a whole set of TINY bolts and nut included, that I found no use for, nor did the assembly instructions say anything about them. They appear to not be needed, as my scope is solid as a rock.- DO NOT over tighten the nuts that hold the top piece on. This will cause the top piece to warp just enough that one of more of the control buttons will not depress correctly. Remember: precision cut!It took me about 75 minutes to put this together, mainly because I have bad eyes and low patience threshold. Once it is complete, though, it is beautiful. For the price, it is a good bargain! God speed, fellow DIYers...
William
2025-06-25 12:09:52
I'm pretty sure this is labeled as a DIY project, however it came in as a fully assembled unit. With that being said, it powers on and seems to be working as expected.I read another review prior to ordering that encountered the same issue of the project already being assembled. I don't have any plans to return it seeing as I ordered the project to both build and use. And aslong as it works, I will be using it.It is an affordable project, but the value takes a hit. There's value in the convenience of the project being put together for you, but also less value if you were purchasing the kit to be able to learn more than just how to use it. I.e, Being able to assemble it yourself.
Iron Pariah
2025-06-05 14:56:28
This is an excellent project. It would be challenging for a beginner, but taking their time, double checking everything, and getting it all right it's extremely rewarding to finish a project in a working thing (and the test loop ensures you have a square wave to check). It doesn't have fancy modern oscilloscope features, but mostly, if I'm going to use a scope, it's to see IF there's a wave, or its general shape, so this is a perfectly sufficient tool for me. A 450 dollar scope would be wasted on me. You can use it to test the function generator Amazon recommends the scope with (that would probably be a better FIRST project for a beginner, but this is a good second). I'm going to try it with the 9v battery to 2pin molex connectors to try running it off a battery.The documentation is good for assembly, but not *great* for trouble shooting, BUT the project is VERY well documented online, it seems to be a very popular board/chip/project. Can't recommend highly enough!
Jon
2025-05-09 18:21:18
OK, so I had low hopes and just wanted a fun project that might end up being useful. It didn't. Whenever I attach a power supply it goes crazy pulling weird voltages. Tried replacing caps, inductor, diodes, you name it.Can't get it to pull a consistent voltage and when it does, I get half voltage at all test points, if I'm lucky.
Kee Kang.
2025-05-04 18:51:10
The item matches the description perfectly. It is built to be heavy-duty, ensuring durability and strength, making it ideal for demanding tasks. Additionally, the price is quite reasonable considering the quality and performance it offers. I wholeheartedly recommend this product to anyone in search of a reliable and sturdy option.
The handyman
2025-04-29 11:56:16
The device worked the first try, came with all the required parts.As somebody else pointed out in the comments, this is not a good kit for amateurs because the instructions are borderline terrible.If you have experience soldering electronics and navigating ambiguous instructions then you will be fine.
Jon
2025-03-20 10:44:46
As someone just getting into this hobby, I was a bit hesitant as a few other kits I ordered arrived with minimal instructions and/or descriptions. I was extremely pleased to find an easy to read diagram and troubleshooting tips included.The quality of the parts seem to be great- no issues on my end. All components were separated and labeled accurately.I’d highly suggest this for someone just getting into the hobby with a few projects already under their belt.
Brian Garcia
2024-12-30 17:01:08
I've searched online for a troubleshooting guide but can only find one for a mini version of this board.I screwed up and soldered two transistors in the wrong spots. I wish there were troubleshooting steps available for novice users. Thanks to the Electrical Engineering discord server for helping me learn how to identify my own mistake.I'll be uploading the chassis stl to thingiverse under "DSO 138 DIY Oscilloscope chassis"
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