Trinitron is Sony 's brand name for its line of aperture-grille -based CRTs used in television sets and computer monitors. Constant improvement in the basic technology and attention to overall quality allowed Sony to charge a premium for Trinitron devices into the s. Patent protection on the basic Trinitron design ran out inand it quickly faced a number of competitors at much lower prices. Sony responded by introducing their flat-screen FD Trinitron designs WEGAwhich maintained their premier position in the market into the early s.
Sony removed the last Trinitron televisions from their product catalogs inand ceased production in early Video monitors are the only remaining Trinitron products being produced by Sony, at a low production rate, although the basic technology can still be found in downmarket televisions from third parties. The name Trinitron was derived from trinitymeaning the union of three, and tron from elec tron tube, after the way that the Trinitron combined the three separate electron guns of other CRT designs into one.
Color television had been studied, [ when?
At the time, a number of systems were being proposed that used separate red, green and blue signals RGBbroadcast in succession. Most [ which? Another problem was that the mechanical filter made them flicker unless very high refresh rates were used. RCA worked along different lines entirely, using the luminance-chrominance system.
This system did not directly encode or transmit the RGB signals; instead it combined these colors into one overall brightness figure, the " luminance ". Luminance closely matched the black and white signal of existing broadcasts, allowing it to be displayed on existing televisions.
This was a major advantage over the mechanical systems being proposed by other groups. Color information was then separately encoded and folded into the signal as a high-frequency modification to produce a composite video signal — on a black and white television this extra information would be seen as a slight randomization of the image intensity, but the limited resolution of existing sets made this invisible in practice.
On color sets the signal would be extracted, decoded back into RGB, and displayed. Although RCA's system had enormous benefits, it had not been successfully developed because it was difficult to produce the display tubes. Black and white TVs used a continuous signal and the tube could be coated with an even deposit of phosphor. With the compatible color encoding scheme originally developed by Georges Valensi inthe color was changing continually along the line, which was far too fast for any sort of mechanical filter to follow.
Instead, the phosphor had to be broken down into a discrete pattern of colored spots. Focusing the right signal on each of these tiny spots was beyond the capability of electron guns of the era, and RCA's early experiments used three-tube projectors, or mirror-based systems known as " Triniscope ".
RCA eventually solved the problem of displaying the color images with their introduction of the shadow mask. The shadow mask consists of a thin sheet of steel with tiny holes photo etched into it, placed just behind the front surface of the picture tube. Three guns, arranged in a triangle, were all aimed at the holes.
Stray electrons at the edge of the beam were cut off by the mask, creating a sharply focused spot that was small enough to hit a single colored phosphor on the screen. Since each of the guns was aimed at the hole from a slightly different angle, the spots of phosphor on the tube could be separated slightly to prevent overlap.
The disadvantage of this approach was that for any given amount of gun power, the shadow mask filtered out the majority of the energy. Moreover, the system was highly dependent on the relative angles of the beams between the three guns, which required constant adjustment by the user to ensure the guns hit the correct colors. In spite of this early start, only a few years after regularly scheduled television broadcasting had begun, consumer uptake of color televisions was very slow to start.
The dim images, constant adjustments and high costs had kept them in a niche of their own. Low consumer acceptance led to a lack of color programming, further reducing the demand for the sets in a supply and demand problem.Continuation of Vintage Micro Television. This page has a bit of everything, here you will find miscellaneous information including photos of the first Sony televisions sold in the United States. It was the first television in the world to receive the award.
Also featured, the original General Electric Porta Color from among other things. Scroll down to read more. Original magazine purchased by me. See Page One. This set never made it to market.
Sony TRINITRON KV-27FS100 Service Manual
One more RCA prototype television shown A Videokarma member posted this in response to a question as to wheather it was possible to produce a miniature set as above in It was led by Tucker Madawick. I was aiming to do an article for my radio club, but my mother got sick, then I was taking care of her and my family, then I had a kid, then this, then that.
An article about a prototype Philco micro television appears in the December, issue of Mechanix Illustrated.
Mechanix Illustrated Magazine December, Original magazine purchased by me, the cover of the February, issue of Popular Mechanics magazine, features a working prototype, dual sided, six inch color television. This television was developed by the Intertel Corporation in Los Angeles. Look at Sony 4 UW television on page one. One year later, August,a working double sided television is shown at an electronics expo in Japan.
The ID plate appears to read Sharp. Watch the black and white videocourtesy Getty Images. The display may have been in color and could be seen on both sides of the display, front and back. In the video, notice the moving image reflections in the rear. This was the first time a working flat screen CRT was displayed to the public, a full 15 years prior to the famous Sony Watchman FD Due to production setbacks, his dream first came to fruition in with the introduction of the MTV 1.
The photo below appeared in Life magazine. This urban legend by General Electric has the distinction of incorporating the first inline 3 electron gun color CRT in the world and the first portable color television. The second claim is questionable, one could lug around this 28 pound set from room to room, it did have a handle and one could plug in to the nearest power outlet, however no self contained battery or battery pack, so I would call this television transportable, not portable.
Advantages of this CRT, increased brightness, no brightness increase until the adoption of the slot mask in later years. Unfortunately, the first generation models suffered from poor resolution due to the large holes in the shadow mask.
Sony Wega Trinitron KV-27FS13 Operating Instructions Manual
GE still used the conventional delta hole arrangement even though the CRT was now inline. The holes of the shadow mask were to big for the screen size of 10 inches. GE should have engineered a finer pitch shadow mask from the start of production. InI was shopping for my first color set, the uniqueness of this new CRT design and low price for the time, were attractive, but the images produced by this set fell short of my expectations.
Because of poor resolution, contrast, instability and faded colors, opting instead for the Sony Trinitron KV UA shown below. One look at the Trinitron gave immediate reactions, this was something special, commenting to my friends that viewing a Trinitron was like looking at moving picture postcard images. In addition the Sony had superior cosmetics, leather and metal cabinet with brushed chrome accents and glass cover to protect the CRT, while the Porta Color cabinet was plastic with average detailing.
The slot mask was adopted along with cosmetic, color and trim options. The story of that decision follows below. I found this set, November 27, in very good condition. I believe it to be the original model labeled MCW It was clear the company had to innovate, and thanks to some creative engineering, the Trinitron was born.
Typical color TVs use a shadow mask — a metal sheet with tiny holes cut out. The holes ensure that the electron guns hit only the red, green and blue dots of phosphor. The aperture grill blocks less of the electron beam than a shadow mask, which results in a much brighter image. Interested in retro CRTs? He explains in length how it was better and brighter even brighter than Trinitron but way too expensive to manufacture.
Did I miss something? I suppose it refers to new advances made during the years between the invention and when the tv set went into market. And the annoying high pitched whine from the transformer. When it came time to move out, I left, but that behemouth remained…. Nice screen, shame about those two quite obvious support wires. I Always labeled trinitron as a failed and inferior experiment by Sony because of the lines wires.
I used to spend at least 10 ours a day in front of a monitor, the Sony glass was so much better for DTP work, those wires were hardly visible, they did make great rulers though.
I had that dream. For a long time. Included: One brand new Dell Ultrascan P monitor. Now that little jewel is sitting in MY storage room instead, just as unused, too. Those CRTs are awesome for retrogaming, but soooo darn bulky. No idea how I did put up with that two decades back. Before Trinitron, color CRTs used a dot triad shadow mask. The electron guns were arranged in a triangle and fired at matching trios of holes in the mask, lighting up trios of Red, Green, and Blue phosphor dots.
Whomever first developed it essentially took the Trinitron grille and connected the vertical bars with a staggered array of horizontal bars. The cross connections eliminated the need for the Trinitron stabilizing wire across the middle of the grille. The phosphors were in vertical stripes like the Trinitron but Slot Mask still used three guns, arranged in a horizontal row. The result was a negligibly less bright image than Trinitron but coarser than Dot Triad. They fired through single holes in the mask and hit three dots that are the inverse of the arrangement of the three guns.
I remember watching TV at i no such thing as an affordable GPU that could deinterlace at that high resolution back then and how it looked so nice. I would also appreciate a modern, high-resolution CRT, but I feel that the likelihood of getting one is basically nil.First introduced in on Sony's inch and inch televisionsthis technology was also used in computer monitors bearing the Trinitron mark. Flat CRTs reduce the amount of glare on the screen by reflecting much less ambient light than spherical or vertically flat CRTs.
Flat screens also increase total image viewing angle. Super Fine Pitch refers to Sony's line of Trinitrons with high horizontal resolution and very fine aperture grille stripe pitch. Hi-Scan is Sony's trademark for all Trinitron displays capable of processing a i signal.
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Drug Status Rx. Availability Prescription only.Page of 64 Go. Table of Contents. Connecting Additional Equipment. Trinitron Color TV. Show quick links. Hide Hide permanently. Page 2 User Guide It is covered by U. Patent No. Other U. Page 5: Important Safeguards Important Safeguards For your protection, please read these instructions completely, and keep this manual for future reference.
Carefully observe and comply with all warnings, cautions and instructions placed on the set, or described in the operating instructions or service manual. WARNING To guard against injury, the following basic safety precautions should be observed in the installation, use, and servicing of the set. Page 6 Overloading Do not overload wall outlets, extension cords or convenience receptacles beyond their capacity, since this can result in fire or electric shock.
Always turn the set off when it is not to be used. When the set is left unattended and unused for long periods of time, unplug it from the wall outlet as a precaution against the possibility of an internal malfunction that Page 7 Accessories Do not place the set on an unstable cart, stand, tripod, bracket, table, or shelf. The set may fall, causing serious injury to a child or an adult, and serious damage to the set.
Page 8 Grounding or Polarization This set may be equipped with a polarized alternating current line plug a plug having one blade wider than other.
This plug will fit into the power outlet only one way. This is a safety feature.Five years had passed since the first Trinitron color television KVwas launched in Japan in October As Sony was preparing to establish a new plant overseas, wonderful news came.
Sony's Trinitron was selected for an Emmy Award. The Emmy Award is to the TV industry what the Academy Award is to the motion picture industry--the highest of all honors. The award is presented by the National Academy of Television Arts and Sciences to acknowledge television's best programs, actors, producers and TV stations as well as ground-breaking technology for broadcast hardware systems. The Trinitron was the world's first TV receiver to be awarded an Emmy.
At the award ceremony broadcast nationwide in the US, Ibuka received the golden Emmy with a feeling of great joy and nervousness at the realization of the award's importance. Since then, and for more than 20 years, Trinitron technology-represented by a single-gun, three-beam aperture grille and a cylindrical flat panel-continues to maintain a leading technological edge.
As a core Sony technology, Trinitron sustains the company's growth in AV industries worldwide. The Trinitron was first introduced with a 13 inch screen, and the product line has since expanded to include both larger and smaller models.
This reflects technological advances and the incorporation of such new design concepts as "Profeel" and "Profeel Pro," making Trinitron one of the most popular home-use televisions. Furthermore, thanks to its CRT technology, Trinitron's ultra high-resolution and bright screen gave birth to a new business that goes beyond the original applications for the home.
The next great leap for Trinitron was triggered by the rapid increase in the popularity of computers during the s.
Sony undertook CRT development with computer displays toward the end of the s. Sony began receiving inquiries for Trinitron CRTs from computer manufacturers. There were even cases where such customers took the liberty of removing Trinitron CRTs from the television sets to install them in their computer displays because computer displays require high-resolution and brightness, to display small characters and fonts.
Such needs naturally drew attention to the superior resolution of the Trinitron. Sony eventually decided to begin full-scale development efforts to design a computer display utilizing Trinitron's strengths. The aim was to develop a computer display CRT to enable clear presentation of characters and graphics even in the screen's corners.
Sony Trinitron Color Television, Model Kv-1926ra, Made in 1990
Computer displays require a resolution level ten times greater than conventional TV screens, since computer displays process a large volume of information at high speed. Sony's sales team aggressively promoted the GDM to manufacturers of workstations, rapidly establishing an excellent reputation for Trinitron computer displays. Reflecting the explosive growth of the workstation market from the latter half of the s, OEM sales of the GDM to computer manufacturers increased drastically. Trinitron displays became the choice for workstations.
The increased use of PCs within educational institutions eventually led to the development of the CPD series, a line of lower priced and smaller screen sized products.
Sales of this new line of computer displays and the existing GDM series began to take off by the end of the s. In the early s, Sony established its own sales and distribution channels and launched a Sony brand display business to compliment its steadily growing OEM business. Since then, the computer display business has been enjoying rapid expansion. The second half of this quantity was manufactured in only the last five years.
The emergence of large screen, high-resolution TVs and the continuing growth in computer display demand reinforced the excellent reputation of Trinitron. Demand for Trinitron CRTs spread beyond home-use to applications in the broadcast and computer industries.
This rapid increase in demand was met while Sony continued its policy of manufacturing close to its markets. In the United States, where demand for computer displays is extremely high, Sony set up a comprehensive production line in By the beginning ofSony had become the world's number one supplier of color televisions.
The popularity of PCs for home-use had by then increased drastically, resulting in further growth in the computer display market.