What is a posistor? A posistor is a combination of a PTC (positive temperature coefficient) resistor and another resistor-element to heat it up and keep it hot. Sometimes, these will go by the name posister or thermistor. The heater is a disk shaped resistor across the power line and the themister is a disk shaped device in series with the degauss coil. They are in clamped together to be in close contact thermally. You can pry off the lid and see for yourself. The most common failure mode is for the part to short across the line. Its function is to control degauss, so the only thing you lose when you remove one of these is the degauss function on power-on. When you turn the TV or monitor on, the PTC resistor is cold and low resistance. When heated, it becomes very high resistance and turns off the degauss coil but gradually - the current ramps down to zero rather than being abruptly cut off.. Computer Component Source stocks a wide variety, I believe but it may be cheaper to go direct to the manufacturer if they will sell you one.
Are you sure you discharged the tube correctly in this video? I thought the charge is stored in the tube. You pulled the anode cap off and then tried to discharge the flyback transformer. The tube could still be holding a dangerous voltage. Additionally, there is no need to discharge into your electrical mains, it's safer to find a grounding spot on the metal chassis.
Nice video! I have the same monitor and the flyback transformer just stopped working. I need to order a replacement one and was wondering if you're still have the part and can provide the part number. Thanks!
Thanks for the video, I wanted to see what its generally like once the case is off to access the front bezel. My monitor is curved with a flat piece of glass in front of it to give it a fake flat screen look. It appears this flat glass has an imperfection in it, I noticed when playing 2d games it gave a vertical strip of a fun house mirror effect as objects went past it in the game.
The thing you couldnt identify (3-leaded black cube) was listed as a thermistor believe it or not... I had one very similar in the monitor I tore down and while I couldnt find datasheets, I did find plenty of images on google, one of which lead to a description as a thermistor (one of those part supplier sites in china or the like).
I'm not a scrapper, I just did that with Phillips 2k year model, it was pain, yours look easier, while i do it i found that tail lamp thing was broken, i want to extract the front glass to use it but i stopped when i found a warning sticker talk about vacuum tube and X-radiation! I don't know what to do! Any suggestions?
You can open it. Don't be afraid of the x-rays. It is only a problem if it is turn on. As long as it is off and you discharge the flyback transformer. You are safe.
Thanks! I looked up what you said the component was, and I found it very interesting. Not really sure what I can use it for, but thanks for the feedback!
@@SciTyeTech It looks like a reed relay (tend to be long and square like that sometimes). It might be solid state, but I tend to doubt it given its form.
Underrated channel due to algorithm, it deserves millions of subs❤
Thank you! I think the algorithm could change if more viewers were to share my videos. That could probably help.
What is a posistor?
A posistor is a combination of a PTC (positive temperature coefficient) resistor and another resistor-element to heat it up and keep it hot. Sometimes, these will go by the name posister or thermistor. The heater is a disk shaped resistor across the power line and the themister is a disk shaped device in series with the degauss coil. They are in clamped together to be in close contact thermally. You can pry off the lid and see for yourself.
The most common failure mode is for the part to short across the line.
Its function is to control degauss, so the only thing you lose when you remove one of these is the degauss function on power-on. When you turn the TV or monitor on, the PTC resistor is cold and low resistance. When heated, it becomes very high resistance and turns off the degauss coil but gradually - the current ramps down to zero rather than being abruptly cut off..
Computer Component Source stocks a wide variety, I believe but it may be cheaper to go direct to the manufacturer if they will sell you one.
That's very interesting! Thanks for the feed back! That's a very interesting component.
6:39 The Best Channel Thanks for Showing All Recycled Components, I now know where to get high voltage capacitors
Thanks and you're welcome!
6:38 omg what a BEAUTIFUL image of all the electronic components of the monitor
4:43 the perfect transition doesn't ex-
I have a monitor like that one. Not gonna destroy it though, it works great and it fits well with my 90s computers.
That's cool!
Are you sure you discharged the tube correctly in this video? I thought the charge is stored in the tube. You pulled the anode cap off and then tried to discharge the flyback transformer. The tube could still be holding a dangerous voltage. Additionally, there is no need to discharge into your electrical mains, it's safer to find a grounding spot on the metal chassis.
Man how give a F just smash it with bricks .
This is very cool, that is very useful. Yes, very cool.
Why don't you explain something instead of just calling everything cool and useful.
you wouldn't want to touch the flyback after just unplugging it
Yes, that's right. That's why I discharge it first.
Can salvage a CRT but can’t salvage this voiceover.
it's like weird ASMR
I felt molested
when this guy start touching the flyback and other component with his bare hand...i start screaming XD
That's called wasting a good monitor.
Maybe so, but it satisfied my curiosity and I salvage useful parts.
Intro could look better doing a zoom pulse with the kick drum also try syncing it to
Always wanted to see this 😃
Nice video! I have the same monitor and the flyback transformer just stopped working. I need to order a replacement one and was wondering if you're still have the part and can provide the part number. Thanks!
Thanks! Sorry, unfortunately I don't have it. I was experimenting with it and I burned it out.
I was born 1963 and seen the transition from black and white to color
That's cool!
What was your reaction
Despite the fact that color TV has existed since the early 50s.
nice work...
now, when will you put it together again...
lol! I, don't think so.
@@SciTyeTech you make me cry... :(
@@michalaugustniak433Yeah, it's a waste of a nice CRT monitor.
Thanks for the video, I wanted to see what its generally like once the case is off to access the front bezel. My monitor is curved with a flat piece of glass in front of it to give it a fake flat screen look. It appears this flat glass has an imperfection in it, I noticed when playing 2d games it gave a vertical strip of a fun house mirror effect as objects went past it in the game.
The thing you couldnt identify (3-leaded black cube) was listed as a thermistor believe it or not... I had one very similar in the monitor I tore down and while I couldnt find datasheets, I did find plenty of images on google, one of which lead to a description as a thermistor (one of those part supplier sites in china or the like).
Thanks! That was very helpful.
@@SciTyeTech Yea it is really odd... I havent looked more deeply into it (just harvested it before I came across your video)
I really want a crt monitor case I really do
Do you always have to discharge an old montitor? I have heard that it loses its charge after a week or so. Is there any truth to this?
Well yes and no, but I rather be safe than sorry. I did this in this video mostly for demonstrating safety.
@@SciTyeTech okay thanks.
@@level1skeleton317 Sure, you're welcome! Have a nice day!
if that anode cup was faulty, touching it like that could have shocked you
Thanks! That's good to know!
Bro talking like he recording this video at 2am
Is someone sleeping beside you?
lol! No.
6:17 not trach there alot of magnet wire very usefull
Yes, it can be very useful.
@@SciTyeTech can you make how to do high voltage fly back driver
Perfect teardown
how did you discharge high voltage transformer
I discharged it through the ground from the wall outlet.
8:54 PTC or posistor is essential for degausing the CRT
Thanks! That's interesting!
@@SciTyeTech thanks for the video! I have a monitor CRT with problem
I'm not a scrapper, I just did that with Phillips 2k year model, it was pain, yours look easier, while i do it i found that tail lamp thing was broken, i want to extract the front glass to use it but i stopped when i found a warning sticker talk about vacuum tube and X-radiation!
I don't know what to do! Any suggestions?
You can open it. Don't be afraid of the x-rays. It is only a problem if it is turn on. As long as it is off and you discharge the flyback transformer. You are safe.
@@SciTyeTech
That's great, thanks man! 👍
The SINCERA component you are not sure about is a degausing resistor.
Thanks! I looked up what you said the component was, and I found it very interesting. Not really sure what I can use it for, but thanks for the feedback!
@@SciTyeTech I know what it is but also don't know where to use it
Sounds like I am watching a golf game
lol!
@@SciTyeTech Youre so mellow! Golf announcer might be your calling LOL
9:00 CRT demagnetizer nice video i have same TDA for deflection
where is the yoke and crt socket from the monitor tube
0:58 why would you show yourself doing some that could be potentially fatal?!? Thats the most ridiculous Ive ever seen in an electronics video.
Cool😎
Thanks!! It is really interesting of what is inside of a crt pc monitor.
Sci Tye Tech YW😊
Reed relays typically dont click BTW
That makes sense.
@@SciTyeTech It looks like a reed relay (tend to be long and square like that sometimes). It might be solid state, but I tend to doubt it given its form.
The little black box is a posistor
you are going to trow awai so much copper
My crt has only 2 screws and it still won’t open after I got rid of those and tried trying the sides
Could be on the bottom underneath the base.
Nice voice brother
Thanks!
You speak so quietly..
😍
muito legal!!
Ptc
The picture in the video is the one thing keeping me awake. Love the video though!! Don’t like golf. 🥱😂 keep it up
Thanks!