how to convert a CRT TV into an oscilloscope

"Transform Your Old CRT TV into an Oscilloscope with These Simple Steps"
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In this video, we will show you how to easily convert your old CRT TV into an oscilloscope with just a few simple steps. An oscilloscope is a device used to display and measure electrical waveform. And by repurposing your old TV, you can save money and recycle your electronics!

In this tutorial, we will guide you through the step-by-step process of converting your CRT TV into an oscilloscope. We'll start by explaining the necessary components and tools, then we'll demonstrate how to connect the circuit and calibrate the device for optimal performance.

you'll need some basic tools like a soldering iron, pliers, and wire cutters. But don't worry, even if you're new to electronics, this tutorial is designed to be beginner-friendly.

Once you have all the necessary components and tools, follow our step-by-step guide to transform your old CRT TV into an oscilloscope. By the end of this video, you'll have a fully functioning oscilloscope that you can use for a variety of applications.

So, if you're looking for a fun and practical DIY project, this video is for you! Transform your old CRT TV into an oscilloscope today and explore the world of electrical waveforms. Give a second life to your old electronics and get yourself an oscilloscope!

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[louiesBloggingPH]

it makes me cry music background while learning😢😭😭😭

[mattharvey]

could have used this about 30 yrs oscilloscope are

[daefvoice]

Akhirnya kutemukan video penjelasan yang sangat kuinginkan, membuat osilocope dari pesawat tv crt 😊, terimakasih videonya. ❤

[rock-steadi-cam]

I always figured the magnetic deflection yoke would not be frequency-agile enough to make a real 'scope, but you could certainly make a "squiggle generator"!

[ВасилийТёркин-гм]

I wonder if it’s possible to assemble a device on some Cortex M4 that will control the ADC, create a frame buffer in its RAM, then output this frame through the built-in DAC to an RF modulator and thus generate a ready-made signal to feed it to the antenna input of the TV? I think this is a much more interesting and versatile idea than destroying a working CRT TV. After all, in this way it will be possible to immediately draw a grid on the screen and display the values ​​of vertical sensitivity and sweep time in text form. Plus some additional information such as signal amplitude values, frequency, etc.😉

[SlayrOne]

While your video is nicely made, when explaining to people how to put their hands on CRT circuits, please never forget to warn them about the dangers of really high voltages present on these circuits! You obviously know where not to put your fingers, like for example the solder points near the flyback transformer, high voltage capacitors, or the neck board where some high anodes voltages (at least a few hundred volts) are present... Also a warning about the voltage present under the anode cap (probably over 10kV) would be welcome. Someone who might not be aware of the high voltages present would get a nasty surprise if getting too close to dangerous points of the circuit or trying to take things apart without proprely discharging (even if well designed circuits have resistors to self discharge).
Also... keeping a bright static focussed dot on the screen like that will pretty quickly burn the phosphor in that spot, something like a few seconds would be enough to have some damage. Never ever keep a bright spot (or even a bright small line or something) in a static position on a CRT tube, at least lower the brightness. It will irreversibly burn in! I managed to burn a few spots on a good tube once, working on CRT clock circuits, and I was careful...

[klepalilental]

Спасибо что вы показываете такой позновательный и обучающий видео для юных умов

[kimbal]

Turn off the Oscilloscope time-base and insert a sawtooth ramp generator and with that make a large screen Curve Tracer for vacuum tube and transistor testing/matching.
Tv sets are ideal for this function, because of their large screen.
Curve tracers for tubes are worth a fortune nowadays - if you can find one.

[anthonynew]

I built one in the 1970s, using an old 17" TV. Needed a few power transistors to drive the coils, though. Interesting video - pity about the commentary errors.

[JustinMarucci-ibon]

I love oscilloscopes, I love this video I love you. I almost cried. Thank you

[TheEddieification]

I'd like to see the Amp connected, it would be interesting.

[pauldery]

Super cool! When I think of all th TV's I've stripped down, just for parts, now I'm all out. I'll have to get one just to try it.

[GarryGri]

I now this was the 'how to make an oscilloscope on a TV' thing but with a little more work you can make it display an XY vector as well.

And before someone asks, no moving the coil whilst the tube is powered won't kill you.
I wouldn't advise touching the anode though!

[phillipdeville]

That is a good piece of equipment to pull that from. This exact circuit for Monochrome CRT is in countless products, flyback transformer and those two very interesting ICs. The equipment I pulled mine from was a radio hybrid with speakers, so the board was very wide and would have been inconvenient to mount. I was making a VCO from ICL8038 if anyone has heard of it and wanted to use it as a signal display just for kicks -- the board is too inconvenient :(

[juanfwidlar]

awesome for science demonstrations.. greetings

[habtamusium]

glad to see this interesting lesson . thanks much.

[JustinRoth-gf]

A video of making usable memory with two or more CRTs would be really cool.

[bobdole]

Nice been thinking about doing this to have a compact battery powered crt scope with me

[ruvalcabagonzalezgerardo]

Super cool!
Maybe we can obtain Lissajous waveforms if we connect two channels of the FG to horizontal and vertical deplexion coils 😧

[combycat]

Hey, I just want to say thank you for making this video. I love cathode ray tubes but I had no use for one, aside from the parts, and I also wanted to make a crt oscillascope so yeah, thanks!

ALSO!! BEFORE YOU DO THIS, DISCHARGE THE SCREEN AFTER RUNNING IT EVEN FOR A BIT BECUASE THE SCREEN CAN HOLD LIKE 20, 000 VOLTS/20kv!! AND IF YOU DON’T DISCHARGE IT YOU CAN BE SHOCKED PRETTY BADLY

Edit: can you make a part 2? Also I don’t have most of the parts I need :(
I have barely any soldering skills, no power supply, no signal generator, nothing😢