Questions tagged [crt-monitor]
Cathode Ray Tube monitors: principles of operation and use with computing devices. DO NOT REPAIR CRTs; SEE TAG WIKI FOR DETAILS.
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Repairing an Old CRT Monitor (IBM 5153)
I acquired a used IBM 5153 monitor. The model number is 5153002. It was manufactured in Taiwan and supports AC100-250V.
When I first powered it on, the monitor turned on, but nothing appeared on the ...
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US equivalent of the Microvitec Cub monitor
In the 8-bit computing era, UK schools acquired BBC Micros in a project sponsored by the BBC. The monitor typically used with these was the Microvitec Cub.
In the US, there was also a push to put ...
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ZenithZ89 System Font
What is the font (ttf name ideally) used in the ZenithZ89 System Font?
(This is a retro question - if one were to emulate it using currently available fonts, which would be used?)
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Sony PVM (PVM-14M1J, NTSC-J) Displaying the Wrong Colors
Edits
I have accidentally used the word composite over component, but after testing it with an RGB cable and an S-video cable, the results are the same.
I've been told to mention that my PVM is NTSC-...
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Apple II color monitor displays everything in green
I have an AppleColor composite monitor (A2M6020) that only shows green-scale. The color toggle switch on the front doesn’t change anything. I have plugged the monitor into multiple devices with the ...
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Monitor connector for C64 and ST the same?
I have a monitor (colour) that works on my Atari ST. The connector looks similar to that of my Commodore 64, but it doesn’t seem to fit. Now I don’t know if I just have to use a bit more force, or ...
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How does the Apple IIgs color compare to the Apple Macintosh color?
There has been an interesting discussion of how to convert Classic Macintosh Color to sRGB, which begs a second question. How does color on the IIgs compare to that of Classic Macintosh? I'm asking ...
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How to use thinkpad x230 with PCjr 4863 monitor?
I understand it is probably more trouble than it is worth, but I am keen on using my 4863 IBM monitor as a second display for my x230. So far I've looked into converting its VGA signal to a CGA output,...
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What's the name of this Apple monitor
Browsing through retrocomputing resources, I recently stumbled upon this picture:
I'm familiar with quite a few Apple II monitors, but it's the first time I saw this one. There's an Apple logo, so it ...
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Samsung SyncMaster 3 cannot show resolutions up from 800x600 despite manual saying otherwise
I am in the proud possession of a Samsung SyncMaster 3 monitor. In the reports and in the manual it says it can run 1024x768, but I cannot for the life of me make the resolution higher than 800x600.
...
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HDMI to SCART - Using Mega Drive (Genesis) Mini with CRT
I have a Mega Drive (Genesis) Mini that features an HDMI output that I would like to use on a CRT TV I have with a SCART input.
Ideally I would like to convert the HDMI to RGB SCART for the best ...
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Did any computer systems connect "terminals" using "broadcast"-style RF to multiplex video, and some other means of multiplexing keyboards?
Rendering a screen full of text as a video signal required a substantial amount of circuitry, especially in the era before LSI semiconductors. A device to generate display signals for a moderate ...
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Sending video to Telerate 9" Green Monitor [closed]
I found an old Telerate green monitor at a thrift store and figured I could run my computer output through an HDMI -> AV converter with no problem, or a Raspberry Pi composite output signal. Turns ...
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Does anybody have information on this tube?
I need to know if this is a color or monochrome tube. It’s in an applecolor A2M6020
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A2M6020 AppleColor monitor not showing color
When I got my Apple IIc computer, it came with an A2M6020 AppleColor 13" NTSC composite monitor. However, I have not been able to get color working on it.
I don’t know if it just has a monochrome ...
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Which font with slashed zero is being used in this screengrab?
Do you know which font is being used in the video here: https://www.youtube.com/watch?v=xnudvJbAgI0? A screengrab of the video that shows a lot of text:
We can see that the zeros are slashed, so it ...
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Atari SM144 Horizontal lines after turning off then on
I recently bought an Atari SM144 monochrome monitor so I could play with an old Atari ST. It works to a certain degree, it turns on all good and I can play for a while, but after some time it gives ...
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Monochrome CRT, words are wavy and sometimes move forward and backward, what could be the issue?
Monochrome CRT characters are not stable and rather shaking or waviness in them, sometime feel like moving forward and backward. Issue is in the high voltage power supply but what could it be, do high ...
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Why did my CRT TV back in the day have such noisy RF picture on the NES when a same-age one does not today? [closed]
Back when the NES was current, I got one for my birthday. I connected it using the RF thingie to my cheap noname 14" CRT TV bought a couple of years earlier, in the late 1980s or 1990 or so.
The ...
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How can I find the specifications and manual for a JVC AV-S280ENT CRT TV? [closed]
I've just "struck gold" (in my world...) by finding an old CRT TV placed in the garbage room of my apartment complex. Didn't think that was ever gonna happen again. Anyway, as logic dictates,...
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Why were animated screensavers used instead of a black screen on CRT monitors?
Before the advent of modern monitors, CRT technology was used, which was vulnerable to screen burn-ins. Screensavers avoided these problems by producing animations instead of persistent images.
Were ...
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Were there any square monitors other than PLATO?
The PLATO multiuser interactive computer system used – and indeed invented for this purpose – a plasma display, whose key selling point in the late sixties was that it did not need refresh, therefore ...
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How to adjust RGB in an old CRT monitor (Samsung SyncMaster 753s) where the on-screen controls do no have the provision?
I just love CRTs. The have used LEDs and LCDs monitors but non of them have the high quality picture which a CRT monitor produce. In CRTs the color reproduction is very nice and also the brightness ...
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Why was the Microvitec Cub monitor made of metal?
In British schools in the early eighties, the iconic microcomputer was the BBC Micro, typically connected to the equally iconic Microvitec Cub color monitor, as described in this video.
Why this ...
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Atari ST colour rendering
In the late 80's, I had an interesting incident with an Atari ST that I've never really understood.
I was using some graphics software that I recall was very similar to the way Microsoft's Paint still ...
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Digital to analog in an old 35mm film recorder [closed]
I'm looking at an old film recorder from 1985, the Polaroid Freeze Frame, the back of the machine pictured here:
From here: https://www.radiomuseum.org/r/polaroidco_freezeframe_video_recorder.html
I ...
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Why might my CRT fry any HOT I put in it? [closed]
This CRT is a Hyundai HN-4850, sold under the brand name KTX. A while ago, I fed it a video signal at a greater frequency than it was designed to handle, and after a spell of cutting out, jerking ...
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Does the Atari 1040 STE work with the Atari SM124 monitor?
I have an Atari 1040STE. I'd like to use it with the Atari SM124 B/W monitor but I'm not sure it will work. It's my understanding that the Atari SM124 works fine with earlier Atari ST models, but when ...
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Why did some video games apparently use "interlaced" video modes?
I was under the impression that "interlaced" video modes was only a thing for remote television content because it saved bandwidth to only send 50% of the data to the homes, so you could fit ...
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Is there such a thing as a modern-manufactured, flat, fake CRT TV? [closed]
CRT TVs were great, and an absolute must for all classic video games. However, it cannot be denied that it's impossible to buy a new CRT TV today, at least in any kind of normal store, and you rarely ...
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Performance characteristics of the DEC Type 30 graphical display
The DEC Type 30 was an early vector graphics display, that was used for an astonishingly wide range of applications for the 1960s. It used a 16-inch circular CRT with high persistence phosphor ...
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CRT Mitsubishi Diamond Pro 1000 black screen: flashes BIOS logo during boot, but otherwise black
I received this off eBay yesterday and the seller had showed images of it working. The CRT shows many signs of life, I hear static when it turns on, a sound when I switch resolutions, the degaussing ...
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Were vertical monitor arcade games programmed differently from those with horizontal monitors?
Many classic arcade games like Pac Man (Namco 1980), Assault (Namco 1988), Mercs (Capcom 1990), etc, use a monitor oriented vertically. I assume that they used the same physical hardware, with the ...
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Ideal resolution for color computer on PAL/SECAM
Suppose you were, in the early eighties, designing a color computer to run on an PAL TV with a free hand to choose the specifications within the limits of the technology of the time. What would be the ...
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Why didn't early color TV sets accept RGB input?
Early PCs generated RF signal, and later Composite video or S-video, to use a TV set as monitor. Why didn't color TVs of those days expose a analog RGB interface for direct connection from VCR/PC or ...
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Early vector computer displays: off-the-shelf oscilliscope, or custom built?
Some early computers had vector displays, which allowed the computer to draw graphics by steering a cathode-ray beam. Some examples include the Whirlwind, TX-0, TX-2, and PDP-1.
It would be easy for ...
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Choosing a monochrome color at the monitor?
A monochrome monitor displays only one foreground color and one background color. Usually the monitor was manufactured to produce only one color, which was cheaper (both CRT and electronics) than a ...
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What is the correct name for the old green/amber-on-black monitors, and what are the best vintage models to look for used?
I'd like to buy an old green-on-black or amber-on-black computer monitor, but I'm not sure what to search for. Are they called "monochrome" monitors, or something else?
What I want is one ...
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Can the 80-column display really be improved on a C128 and 1902A monitor?
The March 1988 issue of RUN contains the following tip from a reader on page 20:
Attention: C-128/1902A Owners!
If you use a Commodore 1902A video monitor with your C-128, here's a way to get a ...
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Why does my CRT whine?
My Amstrad CTM644 CRT 'monitor' (really a TV grade tube with RGB inputs), makes a high pitched whine when powered on, audible to my children and cats, though no longer to my own ears. My research ...
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Physical resolution and control of old VGA (color) CRT monitors
I've just realized I have a gap in my understanding of the VGA CRT monitors of the 80386 era (1980s-1990s).
What was the phosphor resolution? It turns out I did not have proper understanding of the ...
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Sony PVM Connections / Composite Signale
I am trying to learn more about different video formats. I have a SONY PVM9044QM and want to understand the different connection options.
So I understand, that Y/C equals S-Video input.
But what does ...
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Frozen horizontal width coil in old CRT monitor
I have an old Apple IIe CRT monitor which could use a small horizontal width adjustment. Unfortunately, as I try to rotate the hex key in the coil with a CRT adjustment tool, it doesn't want to move. ...
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What's the name and model of this computer monitor?
It's look like very old thing to me:
It's in Black and White display. As you can see, it has a socket on the top of it .
What's the name and model of this computer monitor?
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How picky are CRTs about power cleanliness?
How picky are CRTs about the 'cleanliness' of the mains power?
Cleanliness referring to electrical noise from thing like ac motors in fridges, powerline ethernet, etc. Cleanliness is also referring ...
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What's the name of this CRT monitor?
What's the name of this output retro gaming monitor device?
The following is a still from the Netflix production of 'Bandersnatch', a 2018 interactive movie, set in Britain, mostly in the year 1984.
...
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What are principles of vector CRT display? Simplest way to drive CRTs? [closed]
I am into playing with TTL to build 1970s style minicomputers. Aside from talking to them via some serial (or parallel) I/O port to a terminal, I am wondering about display output. This here is about ...
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What monitor could render APL2 characters in 1985?
BACKGROUND:
In 1985, I took an evening class in APL at the local IBM as part of a high school Explorer Post (which was really cool, these guys giving up their time to teach us programming). Other ...
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4MHz Z80 timing and PAL video generation
Im trying to get some nice colored lines on some old Z80 system synced to the PAL screen, but having some sort of a problem. First I just need to know if my facts are right.
I know that on Commodore ...
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What was the timeline for monitors becoming immune to physical damage from invalid sync values?
When I first got into using Linux around the turn of the millennium, XFree86 was still in use, with the associated use of the xf86config command to manually set everything up, and the warning that ...
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