how to convert a CRT TV into an oscilloscope

Нахера русское название если читка на другом языке? Дебелизм

Very interesting idea, but finding small crt tv's like the one shown are getting hard to find.

This project is very good!

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.😉

yeah of course touch the crt let it kill you with electrical shock

Wrong idea, because oscilloscopes work with electrostatic deflection! TV picture tubes are far too short for this, apart from the fact that the deflection plates are missing. They can only work with magnetic deflection.
And what for? There should be enough discarded analog oscilloscopes on the market.

I have 2 questions
How can I change the frequency of bem to see different range of hz
And can I stop the waves by change the frequency to see the waves easily?

Самая плохая идея, в кинескопе управление катушками которые имеют огромную индуктивность, к тому же там очень не линейно все, следовательно это подойдет только для демонстрации и не более

And yet another CRT to Scope video that totally misses the point of modding the Grid signal, ending up in having the RF Snow Video Signal still fed to the Grid, instead of a controlled Screen voltage to control brightness... Not asking for an Edge detection and Trigger, but the bare minimum for pete's sake!

Чтобы превратить телевизор в осциллограф , потребуется :
1. Осциллограф
2. ...

Really wanted to see how you get a dark trace on a light screen.

speeking and so on lake robot or

Ce que tu as fait là, je l'ai fabriqué il y a 30 ans pour un night-club.

привет Вам из России! Большое спасибо!

Tapi gambar terus bergerak

Fun fact, this damages the unit over time and causes screen burn because you're focusing all the energy into one spot. This is also a good way to get yourself killed if you have no idea what you're doing

I done this 40 years ago.

Good..❤

32 inches oscilloscope is handy

It is a blue monochrome CRT ?

Do you know how to fix tv with blue screen ?

What about discharging the tube?

Tried this once on an old TV. Turned out, in Europe the high frequency high voltage transformer is connected to the horizontal deflection coil. When you cut this connection, there is no high voltage produced, no cathode ray hits the screen, everything is dead. 🙁

이거 나도 오래전에 해봤어요.

Good luck sir 🎉

Terjemahkan ke bahasa Indonesia

В семидесятых искал причину телевизора и его же использовал в качестве осцилографа

Τί τάσι δινουμε στα πηνεἶα ἐκτροπῆς;
Μποροῦμε να τα τροφοδοτήσουμε ἀπὸ ἐνισχυτές ἥχου (ὅπως LM386);

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

7 WATTS OF current ?
You should know by now that WATTS is not a measurement of current
Current is measured in AMPS
WATTS is POWER
Make sure you pay attention to detail
and be accurate and specific in your statements

Yesterday i found an roodkill crt and i made this whit it(:

А как определить частоту и амплитуду по такому осциллографу?

HORZANTAL .VERTIKAL

Всё понятно... Сразу стало...?

so, you can only see the shape of signals but not measure their frequencies, amplitude etc

Computer voices SuCk.

Nice proyec . 👍. I have one with an old phosphor computer screen. 😃👍.

Yo lo hice hace años, cuidado con la alta tensión en la pantalla

great information

🌟 Qual a qualidade e características de 1 osciloscopio desse?

Two words... Oscilloscope Music

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...

Oscilloscope tubes move the beam electrostaticaly. TV tubes don't have deflection plates and the beam is moved with external deflection coils. The TV deflection coils don't have enough bandwidth to make a descent oscilloscope. You will spend a lot of money building a piece of junk.

hay !rất hữu ích

Perca de tempo.

Make sure to only do this with a cheap portable B/W Tv, not a good CRT

Ответ прост - никак.

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

awesome for science demonstrations.. greetings