How does an analog oscilloscope work
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- เผยแพร่เมื่อ 18 ก.ย. 2024
- In this video I explain how does a classic analog oscilloscope work (a scope with an electrostatic deflection CRT). You can support me on Patreon: / diodegonewild
More about this scope:
danyk.cz/c1-118...
You can support me on Patreon:
/ diodegonewild
Wow, I learned more from this guy, his cat, and old soviet hardware, than most scope videos on youtube. Thank you!
lmao same, he may have a heavy accent, but i have learned soo much from him
I was a bit scared that Samara is gonna crawl out of the CRT television and grab my cat! :D
DiodeGoneWild make a video about fake chinese usb drive (usb killer)
I think that fake drives and USB killers are two completely different things :).
Yeah i know but can you make a usb killer video?
Oskar Polanski that would be cool
I didn't see a well!
You did a smashing job of discribing the scope :-D, even though i know how it works i still enjoyed watching :-).
Thats a smashing oscilliscope, dual trace via chop or A/B switching.
The front panal is nicely layed out, easy for even a non russian user.
Ok it was the loverly cat i was watching LOL :-D.
I have a cossor scope, a telequipment d32? and a radio shack display scope.
The telequipment portable battery/mains one is bad joint city, ive spent a lot of time on it.
In the next video I plan to get to the dual trace modes :). I like how simple to use this scope is and yet so handy. The cat was very heplful this time.
It would be awesome to watch if you can build a crude analog scope from scratch.
You can use an old CRT TV as a basic scope. Connect the deflection coils to a good audio amplifier and you can see the signal.
The Russians have built some really nice scopes back in the 70's and 80s... interestingly I had the chance to use this very same model back in the early 80's.
By the way here's a crude scope built around an old TV "HACKED!: CRT TV becomes a crude Oscilloscope"
th-cam.com/video/aScAZReGQc0/w-d-xo.html
I actually learned more about scopes from the first 5 minutes than many other scope videos on the internet
Good, clear explanation. Scopes were a mystery to me, but now I'm not afraid of them anymore.
Your cat is so cute!! please do more videos with -him- Her!
It's her, not him :).
:o
2:16 I live in Sydney, Australia and yesterday I was buying some Russian Standard vodka. The store had a special deal - only $10 extra for 6 x 330ml Czech fire extinguisher named "Praga". So I bought this equipment and I will test it ASAP.
Nice little scope!
Thank you so much for that great explanation on how these operate, hopefully some day I can luck out & find me one for real cheap. Again thanks for your time as always, Tom.
Thank you for the video! Got it! And the last part helped even more visualizing what's happening!
This is very, very, very good video. Please keep them coming!!
Amazing video man!!!. Im waiting for the next episode of this videos... Regards from Argentina!!!
Thank you for another very informative video and I look forward to the next oscilloscope video. Take care!
Your contents are amazing sir, I am proudly representing myself as your new subscriber.
:D
Thanks :)
Your welcome, I'm hoping to see more of your videos that includes a teardown of a chinese electronic equipment again. And lit them to fire!
And probably kill the fire with your -bottle of Žatec- fire extinguisher. :P
Please make a video about how to read the NOS CRT tube datasheet specs, what the different voltages mean and how to implement these datasheet spec on a simple supply just for a single dot to appear on the center and how focus and intensity works. i have the common 5lo38i and it looks difficult to adjust the negative and positive voltages so that the focus and intensity works properly. also please describe how the blanking operates.
hello, here's my diy scope with 5LO38I.
danyk.cz/osc_en.html
The cathode voltage is a few tens of volts higher than the grid1 voltage (the grid1 is slightly negative in respect to the cathode). The more negative the grid1 is, the lower the brightness. A potentiometer is used to set the brightness. It's possible to connect grid1 to 0V and use the potentiometer to regulate the cathode voltage. Then there's a focusing electrode with a positive few hundred volts in respect to the cathode. Use another potentiometer to set the focus. Then there's the main anode, which in case of 5LO38I is 1000V nominal. The datasheet allows 500 - 1100V. The voltage of the deflection plates should be close to the voltage of the main anode. This is why the cathode and grid1 is often connected to a high negative voltage, instead of connecting the anode to a high positive voltage. This way, the deflection plate driving citcuitry is not at a high potential. Here's a schematic of an old tube oscilloscope:
danyk.cz/bm370_en.html
To have an idea how it all may look. The 7QR20 CRT cathode is connected to about -340V and the anode to about +230V. This is more convenient than having +570V at the anode and the plates, but the voltage between the cathode and anode is the same. The plates deflect the beam - the beam is attracted to the more positive plate. The blanking of the beam is done by raising the voltage of the cathode or by lowering the voltage of the grid1.
thank you for the very usefull help danyk! Your diy oscilloscope was the main reason i bought the 5lo38i myself and now im on seek for an oscilloscope schematic for general basic use. I cant implement your design because its difficult to find cheap tubes in greece. However i have studied your schematic and have tested the power section to the grids succesfully. I saw the beam on my 5lo38i on the center without using any deflection except that as already told you focus was not working properly. I wanted to ask you on your schematic you mention a component ''dt UZAP 100-120V''. what exactly is this. google translate didn't help at all.
Wow....my mind was really curious about the slowmo footage....... You satisfied me... Thanks sir🖤
Awesome explanations and nice piece of equipment! a tutorial would be great.
The oscilloscope looks cool please show us the inside of it!👍
The scope works really well and I really like it. I'm not sure I'm gonna poke in it :). It's not like the Ebay items you can order another when you break one. :D
..... but maybe if I manage to get a simmilar one that's not working, I can try to repair it and show you the internals ;)
Opening a scope won't break it. Just open the case and try not to break any cables. I have two oscilloscopes. C1-107(5MHz single) from 1992(so technically it's not USSR, it has no CCCP mark on it) and Schlumberger 5228(triple 250MHz). C1-107 still has germanium transistors in it( I saw one in deflection circuitry). It has integrated multimeter which is done entirely using discrete IC's. Character generator,ADC etc is all made using TTL + analog circuitry. Russian design is messy as always. Oscilloscope part works but the multimeter is semi-broken. Finding the schematic for the oscilloscope should make it easier for you, C1-118 is a popular model so it will be easily available (I found few on Polish forums). As last advice, remember that USSR scopes have slightly different BNC connectors than the west, modern probes will fit very tighly. Changing the BNC is a popular mod for USSR scopes.
I was fokyousing on the green dot the whole time, very informative. Just heritaged one from 1991 with 2 generators and 2 power supplies. Had to translate all labels to English as no documentation whatsoever or even one photo on the net.
I was expecting a tear down...these are extremely complex inside.
But I like the analog signal display over digital and they are so intuitive to use.
I also like the multiple tactile buttons/switches in analog scopes compared to touch buttons & menus in digital.
Thank you for all the information, i learned so much!
Excellent explanation, thank you!
I’m absolutely sure that the mains cable is not factory original. Other than that, it’s a really nice equipment.
I didn't even know the important difference between coils and plates. I just assumed it was something about budget or the complexity of the image. I also liked that you used multiple perspectives for the drawing of the CRT. Thanks a lot! :-)
P.S. The warning about putting out electrical fires maybe did pre-empt the joke. But it's important. And you delivered it deadpan. :-D
looks like your cat is very serious about electronics! Love your videos.
I need to start saving for an scope.
You don't have to buy a new expensive scope. You can buy an older one for a good price.
DiodeGoneWild I'm poor and disabled I have to save up for even an older scope. I spend a lot of time on eBay searching for the scope I can afford.
Mike oliver those electronic scopes (DSO138, DSO Shell and the like) aren't bad for very little money. They usually come as kits, so there's a bit of soldering involved. Obviously not as good as a "proper" scope, though.
I'm in the same boat as you are Mike, but I have heard of going to Ham Radio sales & or swap meets & you can get things for like $5.00 and such for different items, which of coarse need a lot of TLC but I've seen some real nice equipment purchased cheap & they still worked. Just need to replace all the Caps, unless done recently with no questions asked about those, but all in all they are still great deals. Now if we can just find where they have these meetings we can hopefully score some nice testing equipment. Good luck Mike.
Thomas Fanning if I ever find it necessary of those magic swap meets I will let you know.
It was a great explanation!
Such a great explanation!
I just bought the same scope today! It´s awesome!!
Nice to see you have a proper oscilloscope now - although its a bit old but still working well :-) A few years ago i bought my first oscilloscope which was an old Hameg 2 Channel 60 MHz on ebay. We used similar scopes when i studied in university nearly 25 years ago. The modern DSOs have some advantages but i still like the old analog oscilloscopes - good for lissajoux figures as well :-)
I like analog scopes more than the digital ones. For me, it's the only real scope. A trained eye can identify a lot of things on the CRT, which you dont see on LCD. The brightness tells you how much time the beam spent there, you can see tiny changes, it's not pixelized and in discrete steps. And maybe the CRT warms up faster than the digital ones boot :). And an analog scope never tells you that you can't use features you didn't pay for :D. Let alone the possible timers counting down the time to failure. And turning a knob is much faster than clicking through loads of stupid menus.
My Hameg scope needs about 10 min. to warm up for the trigger to work properly ;-) I see your point and i like the analog scopes for that as well. But a good DSO is no comparision to the analogue divices when it comes to logic boards, microprocessors and things like that when you need a bit of math on the signals. There is a good review on eevblog concerning about the discrete steps on the DSOs compared to the analog ones. It turns out, that they cover the noise much more detailed which the analog scope doesnt measure accurate and fast enough.
So, What you are saying is that I should put out an electrical fire with Lager?
If you store the lager for so long that all of the water dries out, maybe then you can use it as a powder extinguisher or CO2 extinguisher :D.
Hypothetically it can be done ad hoc by opening the container and evaporating its contents atop the fire. The evaporation also consumes energy which is likely to have a fire reducing effect.
Better to drink the beer then piss on the fire! :)
Very well explained!
analoge scopes are very good to learn how to use a scope, everything is out there, no hidden menus, very easy to use and learn. DSO is ofcourse better if you want a logic analyzer aswell and other functions. but for basic operations an analogue scope is still very good.
Muy buena la expliación
Please make videos about how old CRT TV works and different between black and white and colour CRT TV's
I actually plan to open one of my CRT TV's ;).
find a sony crt they work unlike any other crt.
Waiting Eagerly Sir Please
can u show us whats inside a fan? loved the content by the way
So informative
Excellent
How does it match horizontal frequency with that of the input?
very cool, anyway to DIY a digital oscilliscope using sotware like "processing" (graphics api) to draw the data off usb or even audio port?
there are projects out there. the problem with audio jack is that its ac coupling only (kills the dc part) so you cant meassure some stuff.
this video was so interesting dude
Very interesting.
does a 50mhz scope mean I can measure the signal on a 27mhz/40mhz antenna output of a 2*aa batt powered remote controller for RC car?
One with cheese?
make a video on igbt vs mosfet and how to select them for a particular application and read data sheets of these.
I repaired this stuff in USSR. By the way, - not bad quality.
good video well done
oo, i love that oscilloscope 😊i've seen some very similar about 20 or so years ago in an electronics catalogue here in the uk, but cant remember what brand they were..
It's a Tektronix clone, you probably saw the real one
I love the cat in some parts of the video
Analog oscilloscopes are becoming antiques. Right after buying a digital scope, I saw one analog scope at pretty low price and immediately bought that. But most of the time I still use the digital one because the analog one is toooo bulky.
My first oscilloscope. =)
Great video and a cute cat :)
Nice!
2:17 - LoL!! Good one!
10000 views, nice number :)
And of course nice old-style scope :)
nice vidéo
2:31 focus or fouckius??! 😂
Nice like Hameg stuff. How many cost it there?
Made in 1988 as old as i am
I NEED ONE OF THOSE !
I think it's possible to buy various analog scopes on the internet....
DiodeGoneWild BUT I WANT THIS ONE !!!!
You still have till March 16 to try and win a scope from Keysight. So do a google search for 'Keysight Wave' and good luck.
banjax66 lol 😂
The web address to try to win a Keysight scope is www.wavekeysight.com
now i want one...
sure, go get one.
I have one of these, but it's only 1 channel. I don't know Russian, so I had to learn using it just by randomly playing with the knobs and buttons.
There's also a C1-112 version with 1 channel and a built in multimeter. Or small C1-94 in a vertical box. I know russian, I read russian datasheets in original.
Is the cable on it original? Didnt russian oscilloscopes have a 2 core cable with a 6 Amp ungrounded round plug?Back then Russians didnt have grounded sockets and even now ungrounded ones are more common.
Does it have XY mode for some scope music action?
Unfortunately there's no X input. There's also no Z input, so it's also not possible to display analog video on it. But for waveform measurements it's quite handy. It's quite small for an analog scope and yet it has two channels.
Security issue for mains measurements with 3 wire mains cable, supposing probe ground is wired to PE?
Yes, the probe GND is connected with PE. I'm not sure why the scope is built like this....
Pretty much always like this...
Battery powered items are safe to test with a scope. All mains powered items under test, should be powered via a mains isolation transformer.
You could also use isolation probes on the scope but these are VERY expensive. So much cheaper to use a mains isolation transformer.
Can you tell me where are you from ? :)
I'm from the Czech Republic.
DiodeGoneWild wow very nice :) we are almost neighbours. Greetings from Romania :)
like your videos......
Can you sometime show your tube-based oscilloscope?
Sometime I may show my DIY tube oscilloscope and maybe also some factory made tube oscilloscope ;).
Čau, neporadí mi někdo, jaká je polarita toho konektoru, kam se připojuje sonda, nebo je jedno jak do toho strčim dráty, chci si zobrazit signál na osciloskopu co jsem dostal a nemám k němu sondy, díky.
Střed je +
díky (y)
please make a video of teardown a LED TV
You should open the lid so we can see those nice old russian components :)
There's a chance I can get another, very simmilar, but single-channel and not working. Then I would show the internals and possibly make a video about its repair....
But no reason to go poking anything, just open so we can have a look. I should make a video about some of my old scopes, but nothing russian in my collection.
Сделано в СССР!!!! Урааааа!!! And still works!!!!
Made in Lithuania. And yes, still works
I love Your Cat
🐱
Next video: "How does a cat work?"
And can we see the internals of that feline?
What no!!! D:
What is the maximum frequency this scope can show? How many MHz?
C1-118 is a 10MHz scope. There's also a C1-118A version up to 20MHz.
Deine Video sind echt Klasse schade das keinen deutschen Untertitel hast wäre geil wenn auch einbauen tuhst LG Bastler
Vaaa cat🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈🐈
I Love cat's 🐈🐈
I Like it 🍇🍇🍇
Me Too
Your gato is very nice
also could you maybe help look at this tv i have? what model maybe? imgur.com/gallery/Da6OW it worked fine until it blew a fuse and unknown part.
lovely cat, he/she is a sweetie 😍
7:02 whiscas commercial?!
Create new channel called CatGoneCute and there post videos about your cat. And like for that right BNC connector :D.
There's far too many cat videos already :). I managed to fix the right BNC, so I could connect a probe to it (if I manage to find some).
DiodeGoneWild check here: www.ebay.de/itm/P4100-P6100-100MHz-Test-Porbe-High-Voltage-for-Oscilloscope-2KV-Alligator-Clip-/401498772448?var=&hash=item9c4584c343
MY oscilloscop С1-55
Wow this is Straid Wave
i would donate on pateron bt i am 13 and my mother is not willing to do so
when will u disassemble ur cro
maybe I'll get one more (non-working) and I will try to repair it in a video...
DiodeGoneWild and ur cat
Udělej taky nějaký video česky pls :-D
Zateckie dobre? Ja dzisiaj wypije Zatecky svetly lezak. ;)
Now buy a cheap USSR spectrum analyzer and demo it.
Joseph Nicholas I kind of doubt that this exists in particular in combination with "cheap".
Ahoj ,to je pěkný osciloskop já mám Teslu BM-566A .Je to hrozná krabice a váhá taky okolo 20 kg takže nic přenosného :-( ale je to daň za kovovou konstrukci
Ty Tesly BM-5xx jsou legenda, taky sem o nějakym uvažoval, ale jsou to šílený kolosy. Tyhle sovětský C1-xxx jsou mnohem menší a na většinu věcí stačej... Ale jasně, BM-566A má o dost větší šířku pásma :).
Jinak tvoje videa super jen pokračuj :-)
Lamborghini
Hhhhheeeelllloooooo my brother :)
👍👍👍👏👏👏
YOUR CAT IS CUTE
2:32 What?! What are saying?? You saying “Fuck use” instead of “Focus”😆😛😜
Opamp,electron gun...
Dali je hladno u Češkoj?
Where are you from to have access to a soviet oscilloscope?
He's from the Czech Republic.
Tony Walton huh thanks
I'm from the Czech Republic. A lot of soviet things used to be imported to my country back then...
DiodeGoneWild I see that explains everything well in greece some of your products get imported here they're cheap to us but I have to say you Czech people make good cereals for breakfast
John Arabidis soooo Soylent Cereal is Czech people?
Are you czech?
Yes :)
Сделано в СССР
please play osciloscope music :)
Transformator 220V WTF?
nic. kurwa nic xD
Oskar Polanski yeah like Jerobeam Fenderson’s music
EDIT: search Jerobeam Fenderson on youtube
you Hungarian ? :) you must beeee, am i wroooong , no im noooot
Yea, you're 'cos he's czech...
@@lukaszavada you meeeeen, you yes aaaare :)