CRT Monitor?

How-to-take-didgital-pictures-with-a-crt-monitor is lieing tutorial i think and how to discharge monitor vacuum did everyone tried personally!!!

Question by h0meIandsecurity 


CRT projects

Does anyone know of a good (and cheap) project I can do with a CRT (not a monitor, just the tube)?

Question by nikv95   |  last reply


Fixing A CRT TV

I am planning on buying some classic consoles soon, (NES,SNES,SEGA Genesis,N64, etc) and I want to be able to play them on the kind of screen they were made for, a CRT. I have one that a friend gave me, but due to being moved a lot, and probably not gently, the picture has fallen out of alignment. Specifically it cuts off a large portion of the screen on the left, (leaving a thick space of black on the right) and is at a slight angle. It is not all that big of a shift, but it is a real pain in games with items in that section, because ammo counts, health bars, treasure chests, and even chunks of text can be hidden in that space. Could anyone tell me how to fix this issue? And how hard it is to do?

Topic by Damnation   |  last reply


replace a 21 " CRT in a TV with the small CRT PC monitor ?

 i have a 21" TV lying around and an old CRT monitor. basically i want to use the CRT monitor as the TV in my bed room. the old 21" TV is not  working but the CRT monitor is. is there any way I can use the monitor as a tv without the computer? since the monitor cannot be directly connected to the cable i need a way to use it... pls help. 

Question by para p   |  last reply


How do you separate the CRT glass safely?

Would like to separate the two pieces of glass that make up screen. Does anyone know how to do this? Can you remove epoxy that is holding them together.

Question by    |  last reply


CRT TV scrap parts? Answered

I found four CRT TVs in the garbage around my house; I've already torn out the flyback transformers, the motors from the tape decks, and the speakers. I was wondering if there were any more parts I should be interested in scrapping before I take them down to my local recycling center. So, are there?

Question by Brekenridge   |  last reply


help with squiggly picture on viewfinder crt

I have a panasonic omnimove camcorder viewfinder that I took apart and plugged in and got it running. It is running on about 5.5 V DC, seems to work, but its very squiggly, like the horizontal or vertical hold is off. when I plug in video from my VCR I can see the image, but it is really squiggly. does anybody know how to adjust this? could i have aything to do with the voltage? Thanks!

Topic by mushroombob   |  last reply


My 19 inch CRT gone all wonky?

I turned my monitor on this morning to be greeted to some weird shit. Apparently everything towards the bottom is squished and the top is stretched out. It's not really bad but you can definatly notice it and I'd like the know why it was fine last night and not this morning. I degaussed it and nothing, any ideas? Or has this thing finally bit the dust?

Topic by Punkguyta   |  last reply


My monitor screwed?

I've got a 19 inch flat screen crt monitor hooked up to my mac. And when I play my music really loud, the image almost shakes like it would if I had the stereo hooked up to the power bar with it like it used to be. The stereo is on it's own breaker right now, but is it doing that from the actual vibration of the picture tube or is it dieing on me?

Topic by Punkguyta   |  last reply


How to power up a crt? Answered

I have a crt from a monitor and I want to power it how do i do that? I have its flyback connected to a zvs driver, and a computer power supply

Question by theVader75   |  last reply


Half Inch CRT Monitror

I was tearing apart an old VHS camera and decided to rip the LCD out of the viewfinder. Much to my suprise I find a CRT monitor not a LCD! This screen is about 1/2 inch. It has a 5 pin connector that leads to the motherboard and a chip on the bottom that says A118121. Obviously two of the conections would be V+ and ground, but what about the other three? I would like to turn this into a composite or VGA compatible screen (maybe even a crazy tiny oscilloscope) but I need some help. Any suggestions or leads would be greatly appreciated.

Topic by gimmelotsarobots   |  last reply


Is it unbelievably dangerous to run a crt tv without its casing? Answered

I'm working on an art piece and i just reckon it'd look a whole lot better and 'fit' better overall, but i'm wondering if somebody accidentally brushing up against it or touching it could turn out badly.

Question by potatosaur   |  last reply


i need help removing a flyback transformer from an old CRT tv

Is there any guides on how to do it?

Question by madrobot3600   |  last reply


where can I get cheap CRT/LCD viewfinders for night vision headgear?

apart from hacking an old camcorder. preferably PAL but NTSC is ok

Question by Barramundi   |  last reply


I have an tiny monochrme CRT Monitor thing from a really old camcorder, can it be used for some interesting projects?

Its a 5 cm long CRT monitor, im guessing a native resolution of 640x480, its got four connecting wires at the very end, its a pretty cool looking piece, i read somewhere this guy ran xp through it, so i was wondering if it could be used for something like that, a hud of some sort probably. any clues?

Question by blckthng   |  last reply


camcorder viewfinder pinout

I have recently come across a panasonic wv-vf01 crt viewfinder. i dont know the model camera it  was from, but i  Would like to drive it. i have already found video, i just need the voltage and pinouts. it has a 6 pin connector. and i plan on hooking the crt to my raspberry pi and show the time on it

Topic by devicemodder   |  last reply


how to fix the broken pins of fly-back transformer?

I have broken the primary & secondary coil pins of a fly-back transformer and i need to repair it. can anyone help?

Question by ferraririder123   |  last reply


Is a CRT electron gun any use?

Is it worth it to take the electron gun out of a CRT when salvaging parts? I've seen people remove the electron gun when they take apart the CRT but I don't know what they'd use it for. What can you do with a CRT electron gun? What chemicals does the gun contain? (I know the screen has toxic phosphor and stuff but I'm talking about the gun itself). Also, is it safe to vent a CRT tube? I have found that you should vent the CRT tube before working on it, by smashing the end from a distance, so that it won't implode if you happen to break it when working on it. But is it safe to puncture open the tube? There are toxic phosphors inside and I worry that venting it could cause toxic chemicals to go airborne.

Question by poiihy   |  last reply



How to fix CRT monitor that has been powered with reverse voltage?

I have a small Homeland Security system monitor (model number 01875) that I accidentally powered with backwards polarity. Now it doesn't turn on. How can I fix it?

Question by Ethanal   |  last reply


How can I cut in half a CRT's glass case without shrapnel or mercury poisoning?

 What I want to do is remove the phosphor screen of a CRT and see what happens if I hit it with intense UV light. I know I've got to look out for high voltage, and that if I don't let pressure into the vacuum very slowly with a small hole the glass will shatter and spray shrapnel everywhere.  I'm also concerned about mercury/lead and any dangerous chemicals I'll be exposing myself to.  Can someone explain the dangers and what I can do to avoid them?

Question by kramerr 


Which would be easier to use?

Which would be easier to use in a circuit:the CRT of a TV set to hold a massive amount of electrical charge-or-a capacitor with a similar amount of holding capacity (capacitance, if I'm correct)?If it's the CRT from a TV, how would one go about using it as a capacitor?

Question by robotguy4   |  last reply


Monitor Screen darkens after spark sound is heard behind?

Ive been happily using my computer for...3year or so. But Ive heard a high pitched(say near 5000hz) spark sounding noise(like when you rub your had in front of a tv as soon as you turn it on) from the back of the monitor and that same instance the screen slightly darkened. It a Sony CRT Monitor i don't know what is going on but its like the third time it happens Edit:Its happening more intense now whats going on?

Question by ReCreate   |  last reply


Does anyone know how to fix a flyback transformer core?? Answered

Hi. I recently took apart an old CRT and removed the flyback to experiment with the high voltage output. Unfortunately, the core cracked when I was working with it. A sizable chunk even came off, but I reattached it by carefully fitting it in the slot and gluing it in place. Now the output voltage is much less spectacular from which I have seen other people do with the same transformer! It works, but I think the damaged core is where the problem is coming form. Does anyone know how to repair it better then what I managed to do? Thanks!

Question by transistorguy   |  last reply


how do i wire my pcb and monitor?

I have a jamma wired cabinet with power supply at 5 volts.i have a 25" monitor with an icade 60 in 1 pcb.i need to know how to connect everything.neither the monitor or pcb is hooked up.i have little knowledge in this field but im willing to learn please help!!!!

Question by phill2   |  last reply


Opening a Compaq presario 1725 CRT? Answered

So I was looking around one day and found and old Compaq presaio CRT. I brought it home to take it apart for the flyback transformer inside.I found two screws on the side and unscrewed them. The monitor wouldnt open and I thought there may be more screws and took off the labels (to check for hidden screws) and couldn't find any .Prying the case open didn't work either. Has anyone Opened/fixed one and knows how to open it? Are there plastic tabs that lock the monitor together?

Question by joeismydad   |  last reply


video source on a Hacked Camcorder CRT

Hi all i have hacked up an old camcorder to get the CRT off it and i am trying to make a scope for my buddy in the reserves, i cant seem to get the video source to work.. ive seen people play gamecube and all kinds on them and i tried using a cut up wire from a dvd player output to it but no luck.. please help  ive managed to find out that the pink and red wire are my positive and negative so i can light the screen

Topic by phunky_phantom   |  last reply


Can I use this CRT as a monitor? Answered

I saw this hack on the MAKE blog yesterday, and it reminded me of a project I wanted to try a few years ago: a computer monitor like the one in the  movie Brazil (pictured below). This device appears to be a small CRT screen behind a large Fresnel lens. The lens is easy enough to find in the form of a reading-magnifier, but it was the screen that puzzled me. I couldn't figure out what I could use that I could hook up to a computer. I thought about hacking digital picture frames, but they wouldn't have the cool curved look of an exposed CRT. When the post on MAKE came out, I thought that maybe the screen he used from a Coleman Lantern/TV (which are pretty easy to find on eBay) would work, but I'm not sure. So my questions are these: 1.Could I use this as a computer monitor using similar methods as in the blog post or a different way? 2.Would it be a problem that the TV is black and white? 3.If it's possible, is it likely that an electronics amateur like me could do it? I have experience in circuit bending and blinking LEDs with Arduinos, but little else. This is the deciding factor for me if it is truly possible, I don't want to take on something well out of my skill range. I realize that even if I did succeed, it wouldn't be very useful, but I'm still interested. Is it possible? Thanks, Noah

Question by noahh   |  last reply


help with a connection? Answered

Does any one know how to connect a web cam to a crt monitor without a computer  or a VGA camera to a crt monitor

Question by techxpert   |  last reply


How to FIx bad CRT Monitor flyback? Answered

My old CRT monitor worked fine last night but suddenly it's turned off slowly .i mean like when light dim. After that happened power button is on but nothing shows on screen and i heard really clicking sound. while VGA cable is unplugged power button led is blinking and no signal dialog box not showing.. i think this happened when bad flyback is there any way to fix this flyback. i have a doubt with monitor power supply. Don't tell me buy a new one :-) And i know high voltages inside it.. Plz tell me good answer. thanks..

Question by ishan udyoga   |  last reply


Any advice on testing/powering a CRT from a TV?

I recently salvaged a three color Cathode Ray Tube unit from a big screen TV  (unknown damage) and I've  never worked with them before. I don't know if there is a best way to test them out or what if any special gadgets I might need to do so. My goal is to re-purpose the unit as lighting for my Halloween display. I'm just interested if they can produce light and if I can control the brightness of the light.

Question by JaneSays   |  last reply


How to connect many CRT monitors to a single PC for single/multidisplay ?

I have a lot of CRT monitors and wish to connect them together either to display a single picture(all the same), or one big picture(compound). I found on ebay a device that from one singe input from pc can extend to 8 monitors to display the same picture. Any help or ideas? I will use them for display / art installation, not to work from them so display does not need to be sharp etc. Thanks people.

Question by Toninu5   |  last reply


Homemade MINI Particle Accelerator? Answered

Hello!  I'm working on a homemade mini particle accelerator from stuff in like hardware stores and thrift stores. I was wondering if someone could give me a definition of a particle accelerator and their hazzards? Also the only thing that I would need to buy off eBay is a some sort of detector for electrons. Heres a list of supplies: concrete, CRT Monitor, wood, lots of thin copper wire (for the electromagnets), a electron detector, and a power supply. It would be a circular accelerator too. Any ideas or info is welcome! PM me or just comment below!

Question by joespicnictables   |  last reply


how can I hack a cga computer monitor to work for rca?

Hello, I was wondering if anyone can make a instuctable for me so I can wire some rca plugs for my science project i'm working on.

Question by cburgess7x   |  last reply


What can someone do with a CRT flyback transformer?

I recently just finished desoldering components from a CRT TV's circuit boards and I got the flyback transformer. What can I do with this flyback transformer? Can I make an ozone generator out of it? I've seen how to make an ozone generator using a neon sign transformer but those are expensive. Maybe I can use a flyback transformer to make the high voltages instead?

Question by poiihy   |  last reply


What can a deflection coil be used for once removed from a CRT?

I took the coil off a CRT and I was wondering if it could be used for anything else.

Question by Taurnil   |  last reply


Where can I get a good flyback transformer without taking apart a CRT? Answered

I am looking for a way to get a flyback transformer without taking apart a crt television or such because of the dangers of the charge stored by the CRT itself. This is my first time using a flyback transformer so I would like it to be somewhat simple.

Question by UbuntuNinja   |  last reply


How can I select part of PCB? Answered

I have 2 PCB that I want to select the essential from them. The PCBs are from a CRT monitor and the other CRT TV so I tested out the TV main PCB and the FBT gave strong arcs but I want to select just the driver.  Or how to find the schematic of the tv or monitor

Question by theVader75   |  last reply



How to connect CRT screen Tv Tuner card to a laptop if possible?

I Have Intex IT-160 model. this is a VGA screen tv tuner card. I want to connect this tv tuner card to my Dell Inspiron 1564 laptop. Can i do connnect this CRT screen tv tuner card to my laptop. If yes , please help me with step by step procedure to be followed. thank you...

Question by manojyelne   |  last reply


I want to purchase a lcd monitor. What can I do with my crt monitor it is in working condition

I have a samtel crt monitor it is in working condition. I want to buy a lcd monitor. What can  I do with the old monitor

Question by SAJAMEEL   |  last reply


My CTX PR960F CRT monitor is too bright and colors are washed out. How can I repair it?

Its a CTX PR960F 19 FD Trinitron (0.24 mm). I know its old, but its a very nice monitor and still in daily use. Someone told me once on a forum that "... a bright and washed out display as you describe it means resistor "so and so" has a very high value...." and then he dissapeared without explaining where it is or how to replace it. This was like.. 3 years ago. Any help, greatly appreciated!

Question by blakeredfield   |  last reply


Turn your monitor into a lamp. (no modding)

Here I have made a PPT presentation for making lamps, moodlights or whatever out of your monitors. I got the idea by seeing that holding a magnifying glass in front of my monitor gave a clean but tiny image on my wall, but the rest was bright and blurry like a moodlight. The file is given below. Save it, open it and use it.

Topic by Derin   |  last reply


Some new stuff i got

So recently my dad wanted to throw away a old tv we had that had a bad cord (yeah we could of easily replaced the cord but be have enough tv's..) and i remember seeing plasmana's plasma speaker a while back and that it used a flyback transformer, so i ripped the tv apart taking the pcb with everything on it, speaker, and the coil thingy on the tube, since it was the first time i took one apart i had cliped the magnet wire winding so thats almost no good so i just got rid of that, and then i took apart 3 other monitors i have gotten over the years, one had a set of speakers inside it, and that was interesting to use. and a while back my friend gave me a old 5cd/radio stereo, i would of just kept it using it for the 5 disc changer mostly but the door was broken, and didnt move well at all, so i scraped it and used the speakers. Oh and theres a PSU in there i ripped apart a while ago, i have another but its stored away currently. Anywho heres just a view of what i got, any ideas on what i should make out of all this?

Topic by knexsuperbuilderfreak   |  last reply


convert any CRT TV or monitor into a vector (XY) monitor?

NOTE: I since found a couple links that might shed some light on the question... From HackIt: New uses for old CRT monitors http://hackaday.com/2008/02/25/hackit-new-uses-for-old-crt-monitors/ It would be very hard to do, but it is possible a CRT could be converted to a vector monitor. Perfect for playing Asteroids, perhaps under MAME. You would have to replace all the control circuits, probably with an FPGA and three ADCs (x/y/intensity). Posted at 8:58 am on Feb 25th, 2008 by MoJo Television and PC monitor experiments http://www.educypedia.be/electronics/televisionexperiments.htm old cga/vga monitor to oscilloscope ? http://www.edaboard.com/ftopic57853.html The inquiry: Maybe I am over-simplifying but I was reading one of those examples of hacking into a CRT's horizontal & vertical yoke controls to sync to music:     http://geektechnique.org/projectlab/707/how-to-make-mac-se30-audio-visualizers and had the idea that it should be possible to create a DIY XY monitor (vector display like on an oscilloscope, Vectrex, Asteroids, etc.) for an Arduino or other uC, MAME or Vectrex emulator, from any TV or CRT, once you have hacked into the electron gun's yokes. My understanding being: Raster display: the horizontal yoke (an electromagnet) sweeps the electron gun from left to right turning on the beam wherever there's a "pixel" at that line (which lights up the phosphor at that point making it visible), then it starts over at the next line (vertical yoke moves down) and draws the next line, and so on, Vector display: instead of rendering a moving image frame-by-frame using top to bottom/left to right scanning, shapes are drawn directly to the screen by positioning the horizontal & vertical yokes at the starting point, the beam turns on, and the yokes repoint to the end point, thus "drawing" the line inbetween the 2 points (I would assume this is for straight lines, not sure if circles or arcs are possible?) then the beam turns off, and the yokes get re-positioned to the next line's starting point. I'm not sure what turns the beam on & off or what kind of timing might be involved, obviously that needs to be controlled somehow. Or for color, where instead of a single white (or green, amber, etc) phosphor exists per pixel, there are multiple (red, green, blue) per pixel, and the beam hits each one at varying strengths (or for a varying length of time?) to 'mix" the primaries to the desired color? I'm not sure how that gets handled in a color vector monitor, but I would assume it's something similar to raster? So if we can hack into a CRT's X/Y yokes and move them around with an audio signal, can we control the yokes more deliberately from a microcontroller to plot specific shapes or text, hence a vector display? For those audio/TV hacks, what is the audio signal doing to the yokes that causes them to move? Whatever it is - voltage, resistance, etc - this is what our device would have to control. Possible proof of concept version: make a device to control the yokes' position etch-a-sketch style with a couple of potentiometers, and turn on the beam with a switch or button. If you see a dot of light moving across the screen then it works. I am thinking the controller might need to be "calibrated" for the individual CRT? (Maybe build some kind of calibration mode into the device.) You might dedicate a microcontroller to driving the display - it could receive text or vector shape coordinates via serial, store the shapes to draw in its own memory, and persist or refresh the image independently, freeing up processing power for whatever device it's displaying for. Another idea would be maybe add some kind of way to read light pen's coordinates, thus making the CRT an input device that can be read from the microcontroller or PC (the Vectrex had a light pen right?)  [This would be a cool mod for the Arduino composite TVout as well.] So is this idea possible without a ridiculous amount of work & parts?  I may be dead wrong about how this stuff works (I'm sure that if this was possible, someone would have done it by now?) but figured it can't hurt** to put the idea out there. I have visions of 4-player vector Arduino pong, Asteroids, Tempest, PDP-1 Spacewar!, vector NES Duck Hunt, a vector etch-a-sketch or lightpen drawing or animation program, or vector Atari Video Music. Possibly an open source color vector games system. Or just a vector display system for any Arduino or microcontroller project, made from any TV. **WARNING: maybe it CAN hurt... Evidently hacking into any CRT can be deadly, you have to discharge the CRT and capacitors properly or you can get killed. So please be careful. This definitely is NOT for kids to try at home.

Question by apple-o   |  last reply



how can i make (yes make) a flyback transformer at home?

Using garbage and no stuff like 805868 transistors or whatever you call that. it shiould be not form a tv crt

Question by    |  last reply


i need help picking out a TV?

i want to buy a 29-37 (preferably 32) inch TV that has Internet Apps; (maybe 3D); at LEAST an 80,000:1 contrast ratio, (maybe 120 Hz or more, but I'm not very picky as long as there is no flicker on the image); and 1080p full HD. i found many models rounding at about $900 (without 3D, of course), little pricey huh?   my QUESTIONS: 1) picture-wise, what is the difference between "back-lit LED", and "edge lit LED" and is there any other technology i have not heard of yet (NOT including back projection of a projector)? 2) which would be the best choice LED, LCD, or Plasma, (of if cheap, small and light enough,      back projection DLP)?         (i don't really care about efficacy, but i do want one with a good lifespan; really bright colors     (like led or plasma) and good contrast, and has deep "black" blacks; hopefully 1080p, but     ill settle for 720p, less than 8 ms response time; has a great viewing angle; and last and     certainly not last, one that is under the $1600.00 price tag!) 3) whats the difference in the picture quality with edge-lit-LED and back lite-LED? (i know the led      placement in each corresponds with the type of led tv it is.) ____________________________________________________________________________ right now, i have a 19 inch CRT 4:3 aspect ratio (i am guessing 480p res) the TV itself is a "CurtisMathes-Tronics" brand (i never heard of it) (model # "CM 19022S"). its OK. it works, but its getting too small for me, and after i bumped into some money last summer ($700) at the peek and i am thinking saving for a "state of the art" HDTV! next year, with my summer job, i should have $1500 to spend.

Question by -max-   |  last reply


i cant get a video signal on my hacked camcorder CRT?

Im trying to make a night vision scope and i cannot get the video on my screen i can get it lit but thats about it 

Question by phunky_phantom   |  last reply


Has anybody attempted this project before?

I got a 1952 RCA console TV I have Gutted the old CRT and chasis. I am going to replace the CRT [ TV TUBE] with a computor monitor and a cable box. I'll drill a front door peep hole viewer in front of the cable box IR sensor for remote control. I make a new custom trim plate for the new " picture tube" and I would like to use the old 8" speaker. Monitors have a more square shape than LCD TV's which is closer to the round tubes of the fiftys. Using a cable box would allow me to place the Peep site where I want it with relation to the cabinet.

Question by    |  last reply