In electronics school, we only had 20 MHz scopes for the most part. The lab had a single 100Mhz scope, but you had to get to class very early to get that seat.

@hazim38780

Жыл бұрын

My scope has unlocked 100MHz (ds1054z) 4 chanel and its enough for most of the time.

@patpatpat999

5 ай бұрын

The first scopes I worked with in HIgh School didn't even have fixed vertical settings. You hooked the probe to a calibrated voltage source, then adjusted a vernier till you got the scale you needed. The good ol' days (yea, right)

Great to see you also made a video about this device. 😀 I have a simple component tester and and use it a lot. The main disadvantage is that the cheap one i bought has no decent case and uses a separate 9 v battery. Some😢 days ago i was looking for a better one and decided to buy this nice device. It is more expensive as just a component tester however for the additional price it offers a lot of extra's (not mentoned in this video it also has an IRcode checker a temperature sensors etc.). Also it is around the same size as just a component tester so it will not use much space on my workbench. Hope it will arrive in a few days to test and use it myself.

That's a cool little scope. Especially since it has a component tester which is a really handy thing to have. I suppose that other commenters may have a point about aliasing, but that is just something that beginners need to learn about. It's all part of the black magic wizardry :-)

Thanks for the interesting YT. Years ago I purchased two different M-Testers (aka Mega328), mainly for testing transistors. I was interested enough in this device to download the manual. Which says those funny little connectors are called MCX connectors. I would use a short RG-174 adapter cable to reduce any stress placed on the DSO-3TC connectors. I may end up buying one of these just because it's a cute, small tester with lots of basic functions for a low cost. Or wait to see what additional stuff is added to future devices of this type. It sure beats the Eico & Heathkit non-triggered vacuum tube 5 inch scopes I started out with! Yeah, I'm another old retired electronics guy. I used to service medical electronics equipment and found your choice of an EKG waveform interesting as well.

I have the tc-2. basically the same thing. As a beginner, im learning stuff still, and it is great for me

9:15 from what I understand, you have to move the cursor to the right until it is on the right blue arrow to the right of the center line., then you can adjust the trigger by moving up/down.

I’m ordering one right now just based on the IR Decoder! Everyone I need one I end up breadboarding one which the of course gets disassembled a day before I need one again.

I have ZEEWEII DSO1511G , for literally 60 euros I got oscilloscope that gave new way to see how circuits work. Not lab grade device but works great for beginner.

And if you know enough about electronics at that point you can expand its capabilities by using multipliers and dividing devices electronic wise to get other ranges that it will read only because you downgraded or upgraded the range what is receiving and sending out like if it's sending out a certain signal you can run it in a higher range with a multiplier

Impressive you have one of the old IMSAI. Remember reading and saw the picture about it. Waited until Sinclair sendt Specturm 48 K on the marked.

Thank you. I got suckered and I'm waiting for delivery but at least as a beginner I know I'm good for starting out and that I should be okay using this.

I have the older model and i can’t mesure voltage ripple on a psu am i dowing it wrong or this scope can’t do it??

Hello, Can it be used in automotive diagnostics? Does it support CAN, LIN and FlexRay protocols? And if not so what is the affordable one do you recommend for automotive repair?

100% agree on the teaching side, my opinion audio range is the best range to teach in, because we can hear it. one of my first projects many moons ago (1970's) was signal tracer, now if I had a little scope like that to view the signal as well that would have been awesome.

@magnuswootton6181

5 ай бұрын

and its not that slow too, and u can also get ultrasound which is even faster if u want to step it up a notch! =)

Any problem with new fw (0.3). Difficult to read low value capacitor or induttance..

Regarding the trigger level, you actually had it selected when you were scrolling through the menus. After AC/DC, the next item highlighted when you pressed right, was the blue trigger level arrow.

I already have a component tester. and AWG. So I just ordered a Zotek ZT-702S which is $60 and includes an actual 10mHz (Real Time Sampling Rate: 48MSa/s) scope and a 10,000 count TRMS DMM.

Can I use the DSO input to check the AC230 Sinewave?

Hi, thx for the video. I have a problem to conect it to my Pc, when i plug the Usb it tries to find the port Com drivers, but nothing, it can't find any driver. I use Win7 64bit, maybe the old win7 can be the problem? Do you know where i can download the drivers manually? Grazie

Great video. Can this test capacitor ESR on board?

I think the connectors on the top must be SMB. And the component tester connector is ZIF (Zero Insertion Force) socket.

Great review thanks!

I got it, and i do not understand why when i measure a capacitor, it gives to me different value of Vloss. If i make 10 measurement on the same capacitor i get 8 different value of Vloss...... what is the reason? Thanks for the video

Got mine a couple of weeks ago. Very useful for checking basic stuff without having to get out my desktop Owon. I think it'll be great for learners on a small budget, or if you do audio and need something in your toolkit. Is it amazing - of course not. However for simple low freq stuff its enough.

I'm seriously considering getting one. I don't have the luxury of having a workshop, just a large IKEA desk and cupboard. Sometime it's a pain in the butt setting up my 100Mhz Oscope. Geeze ... when I was a kid I would have given my brother's right arm for one of these things.

One thing I'd worry about with something like this is the issue of aliasing. Beginners especially (but even veterans) can get mighty confused by aliasing. I would imagine these ultra-cheap, slow DSOs would be especially prone to it. Whereas you don't have this problem with vintage CROs. I think Dave Jones still recommends a good, cheap, used CRO for beginners. What do you think?

@tobi_n

Жыл бұрын

Even cheap DSOs give you more value/$ than an old CRO. And once you got caught by aliasing, you will have learned something you won't forget. Most proper tutorials/videos about oscilloscopes mention aliasing anyways. IMO, today a CRO is more a special tool. Because there are only some niche applications left, where it has a benefit compared to a cheap DSO.

@chongli297

Жыл бұрын

@@tobi_n objectively, you're right. And if the beginner is leaning towards digital electronics and microcontrollers then they will likely be better served by single shot capture and other storage-related features. But if someone wants to learn electronics rather than embedded programming (passive components, analogue signals, power supplies, radios, audio, amplifiers), there's a lot to be said about the simplicity of operation and "no hidden menus, every setting visible on the front" aspect to CROs.

@5mmTech

11 ай бұрын

Thanks for mentioning this. I'm just getting into this as a hobby and knowing these pitfalls is particularly helpful. I watched a video about it and now I'm aware of it. Hopefully I'll recognize it when I encounter it 😂.

I wish you would teach a class, I enjoy your videos very much!

What I’ve seen of the Owon HDS line makes them look like this kind of omni-tool but like, actually usable for more than learning at about $200ish.

@barrybogart5436

Жыл бұрын

Yes. I have the 75mHz one, but now they have one that does 300mHz! Not cheap though.

I’m a little on the fence about the FNIRSI TC-3. An entry level Owon DS-2100 series scope meter is only slightly more expensive and includes a Cat III/IV meter and optional arb generator. I carry a DS-2102S in my tool bag. What has me on the fence is the TC-3 is just so darn cute and it has that cool component tester.

@ssm445

Жыл бұрын

Ikr :) I guess you should not look at it as an oscilloscope, but as a component tester with the added benefit of a portable oscilloscope you can use for low frequency stuff like audio. At least that's what it is for me. Just a less DIY looking component tester. With an oscilliscope function for an additional ~20 bucks (compared to the "pure" cheap component testers). And it's cute.

@wtmayhew

Жыл бұрын

@@ssm445 Thanks for the reply. That’s pretty much how I see it too. You have a pretty nifty component tester with a lot of functions and you get a not so great oscilloscope free as part of the deal. Even this FNIRSI unit runs rings around a borrowed Heathkit scope I first used at a kid.

@jacek7178

8 ай бұрын

@@ssm445 The question is, how good is the component tester?

Oh man, it would be cool if it could use the component tester terminals and be curve tracer!

It would have been nice to show it in actual use, thanks for the vid!!

Is this work for mobile phone cpu signal finding?

@IMSAIGuy

6 ай бұрын

no

these little scope aren't just good for learning there brilliant at automotive work as well and many other jobs i can't even remember how many jobs needed a compact unit to fit into a tight spot to check a signal even if you have a 100mhz scope i recommend one of these mini ones.

@salceti

5 ай бұрын

Are you saying it can be used for automotive waveforms?

@salceti

5 ай бұрын

Are you saying it can be used for automotive diagnostics?

You've got a scope, you can learn! 👍

Nice bro 😊

To appreciate the device it would be nice to look at the design and manufacturing cost...how much would it take to make it yourself ? And how do you build in the sweep in a design !

@IMSAIGuy

Жыл бұрын

as with all products these days, it will be one big chip and lots and lots of firmware to write. here is inside: kzread.info/dash/bejne/hYOJ2NqkqrvXe7Q.html

Can it have a sig gen output while being in scope mode?

@IMSAIGuy

Жыл бұрын

I don't think so

@anvou2

Жыл бұрын

@@IMSAIGuy Yes it can! kzread.info/dash/bejne/l3aE1ruPZtfQctY.html

@anvou2

Жыл бұрын

Yes it can! kzread.info/dash/bejne/l3aE1ruPZtfQctY.html

Thanks!

Just go to DiodeGoneWild and see how he pronounces it :) Cool integrated instrument for field repairs unless you deal with high voltages. I'd be glad to have one or even two handy for out-of-lab situations like visiting someone to repair an amp. In the lab, however, I'll stick with my lovely big '80s Tektronix. There are even Chinese scope probes that have the new-fangled little socket instead of the traditional BNC. I guess they were made with these little portable scopes in mind.

Do you offer any personal electronics classes? If so where do I sign up?

@IMSAIGuy

6 ай бұрын

no

@johnnybravo4976

6 ай бұрын

Any book recommendations? @@IMSAIGuy

Please, what is the maximum current that the signal generator can withstand ?

@IMSAIGuy

Жыл бұрын

manual: device.report/m/46285d4d39f6cf57f892084deb8fad2fc3dc286e0be00e9ba8737a7b98b0a7b1_optim.pdf

@futurizonfr3368

Жыл бұрын

@@IMSAIGuy I have already looked at the instructions but there is nothing indicated for the signal generator, all that is indicated is for the oscilloscope.

@IMSAIGuy

Жыл бұрын

@@futurizonfr3368 you know as much as me now

@futurizonfr3368

Жыл бұрын

@@IMSAIGuy ok thank you

@futurizonfr3368

Жыл бұрын

@@IMSAIGuy, I did some tests and I discovered that there was a protection resistor of 300 Ohms and therefore you cannot output more than 10 mA with no load and 4 mA with an LED.

Can it measure high side driven mosfet?

@IMSAIGuy

Жыл бұрын

yes it can test P-channel

@andreavico6198

Жыл бұрын

@@IMSAIGuy I mean, in a bridge configuration the high side mosfet is always not easy to measure for example the gate signal. Is it any good or for example the input capacitance is so high that it will interfere with the circuit?

@IMSAIGuy

Жыл бұрын

@@andreavico6198 oh, I thought you meant the component tester. if you are talking about oscilloscope. the loading will be the same as any scope probe. if you need a high impedance probe kzread.info/dash/bejne/mGl72NmEgtXfd7w.html

What I want to test for is pure sine vs modified sine

@IMSAIGuy

6 ай бұрын

I just did that test a couple weeks ago. I used this one: kzread.info/dash/bejne/hGWIxLSGY9WsZM4.htmlsi=GU6W-upRqTKF2_Ru

This is a nice little oscilloscope until you try to measure the p-p noise and ripple superimposed over the parent signal. This is good for hobby projects and basic diagnostics for its price.

Nice toy for absolute beginner, but there are 40Mhz scopes for ~120€. Does much more than audio, for example traditional repair of electronics including switching power supply 😇

I like mine

FNIRSI really need to get a pronounceable name.

@chongli297

Жыл бұрын

I've always just said "Fuh-nursey" hahaha

@bryede

Жыл бұрын

Chinese manufacturers have given up and just pick random letters now.

@bryede

Жыл бұрын

Chinese manufacturers have given up and just pick random letters now.

Fen-reesee is how everyone I know pronounces it

@tobi_n

Жыл бұрын

F-near-see would be the pronunciation in German.

The connectors look like SMA or SMB. Not positive though. I’ve worked with $50k pieces of test equipment for decades, and this little guy at $50 USB is just fine for my needs as a retired guy that needs to do the odd bit of troubleshooting.

@IMSAIGuy

5 ай бұрын

MCX connector

Dso_tc3 so vói thiêt bi đo lcr mức độ chính xác khi đo tụ và cuộn cảm

This scope is not good by any means. The much wiser choice is ZOTEK/ZOYI ZT702S (a.k.a. ANENG AOS02) or (I don't believe I'm writing this) FNIRSI DPOX180H. For transistor tester - just buy it separately.

The one I got gives luny IDs on the component tester. FNIRSI says talk to the seller. BangGood says talk to the manufacturer.

According to ChatpGPT, it's pronounced "fuh-nir-see."

It looks like it would be pronounced fuh-near-see

Its not good quality. Look at the component tester in the vid. Damaged from the factory. Its $100 if you buy it twice after the first one stops working one month or one year later. All the cheapest chinese stuff looks amazing value but you have to buy it over and over again. I use double or triple price when comparing with a budget alternative from brand name company that may run for years with no problems.

this "tool" is a simple toy that gives very approximate indications. Obviously I don't expect performance from a professional machine, but if, for example, I set a sine frequency at 30K, I expect an effective frequency of 30K not 31.2K, this is unacceptable. Not to mention the ESR values which give : all wrong , they look like randomly generated numbers , just right to write something . I have tested this tool in every function and I must say that everything it does it does very badly, I repeat it is a bad toy, money thrown away.

@SithaSek

7 ай бұрын

You take things too serious man!!! 😅 It at least help me do repair job every day. 😊

虚标

for christ sake , test the bandwidth, because spec may be false

@IMSAIGuy

Жыл бұрын

I did test it (maybe forgot to video that). was ok at 1MHz the spec is 500kHz

@PeoterRhubarb

Жыл бұрын

@@IMSAIGuy

That "funny little connector" resembles a SMB