Category: Crt spec list

Crt spec list

It will therefore only lock to video signals, line doubled and line quadrupled signals.

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It will not lock to i or p signals at the standard 60Hz. Actual raster corner to corner measurements will vary based on the installation. LC is noted for tubes that are liquid-coupled as opposed to air-coupled. LC'ed tubes offer greater contrast and less halo'ing. Chassis Controls : Analog chassis projectors use manual "pots" for convergence, image sizing, shift, etc. With the newer digital convergence feature, convergence is done from the control panel or infrared remote control. This gives you the ability to stand at the screen and more accurately set up the focus and alignment of the CRT's.

Digital convergence units also may have memories for different inputs and aspect ratios. These can then be changed with the push of a button on the remote. It describes the potential of the projector, but little of the actual brightness you will get on screen.

The brightness depends on many factors. The most important being the screen size and material as well as ambient light conditions. For example for a projector to line double standard NTSC signals i at HDTV at i requires a horizontal rate of Max resolution : This is the maximum resolution that the projector can accept and sync to as an input signal.


Important: While the projector may be able accept the signal, it may not be able to fully resolve the information on screen without overlapping of scan lines resulting in a softening of the picture. That is, the manufacturer resolution specifications do not necessarily reflect real world resolving capability. Any values in are available with an optional input board. Did you find this information useful? Please consider making a donation to help defray the cost of managing and hosting future articles, tips, and documents.

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crt spec list

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crt spec list

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Non-necessary Non-necessary. Online Quote.The cathode-ray tube CRT is a vacuum tube that contains one or more electron guns and a phosphorescent screen and is used to display images. The images may represent electrical waveforms oscilloscopepictures televisioncomputer monitorradar targets, or other phenomena.

CRTs have also been used as memory devicesin which case the visible light emitted from the fluorescent material if any is not intended to have significant meaning to a visual observer though the visible pattern on the tube face may cryptically represent the stored data.

In television sets and computer monitors, the entire front area of the tube is scanned repetitively and systematically in a fixed pattern called a raster. In color devices, an image is produced by controlling the intensity of each of the three electron beamsone for each additive primary color red, green, and blue with a video signal as a reference. A CRT is constructed from a glass envelope which is large, deep i.

The interior of a CRT is evacuated to approximately 0. The fact that it is evacuated makes handling an intact CRT potentially dangerous due to the risk of breaking the tube and causing a violent implosion that can hurl shards of glass at great velocity.

As a matter of safety, the face is typically made of thick lead glass so as to be highly shatter-resistant and to block most X-ray emissions, particularly if the CRT is used in a consumer product. However, as the technology has developed, these displays now provide images of higher quality than CRT, with lower manufacturing costs and power consumption, as well as significantly less weight and bulk.

InArthur Schuster demonstrated cathode rays could be deflected by electric fieldsand William Crookes showed they could be deflected by magnetic fields.

crt spec list

InJ. Thomson succeeded in measuring the mass of cathode rays, showing that they consisted of negatively charged particles smaller than atoms, the first " subatomic particles ", which were later named electrons.

The first cathode-ray tube to use a hot cathode was developed by John B. Johnson who gave his name to the term Johnson noise and Harry Weiner Weinhart of Western Electricand became a commercial product in InKenjiro Takayanagi demonstrated a CRT television that received images with a line resolution.

It was named in by inventor Vladimir K. Zworykin[12] who was influenced by Takayanagi's earlier work. The first commercially made electronic television sets with cathode-ray tubes were manufactured by Telefunken in Germany in Flat panel displays dropped in price and started significantly displacing cathode-ray tubes in the s, with LCD screens exceeding CRTs in In oscilloscope CRTs, electrostatic deflection is used, rather than the magnetic deflection commonly used with television and other large CRTs.

The beam is deflected horizontally by applying an electric field between a pair of plates to its left and right, and vertically by applying an electric field to plates above and below. Televisions use magnetic rather than electrostatic deflection because the deflection plates obstruct the beam when the deflection angle is as large as is required for tubes that are relatively short for their size.

Various phosphors are available depending upon the needs of the measurement or display application. The brightness, color, and persistence of the illumination depends upon the type of phosphor used on the CRT screen.

Phosphors are available with persistences ranging from less than one microsecond to several seconds. For events which are fast and repetitive, or high frequency, a short-persistence phosphor is generally preferable. When displaying fast one-shot events, the electron beam must deflect very quickly, with few electrons impinging on the screen, leading to a faint or invisible image on the display. Oscilloscope CRTs designed for very fast signals can give a brighter display by passing the electron beam through a micro-channel plate just before it reaches the screen.

Through the phenomenon of secondary emissionthis plate multiplies the number of electrons reaching the phosphor screen, giving a significant improvement in writing rate brightness and improved sensitivity and spot size as well. Most oscilloscopes have a graticule as part of the visual display, to facilitate measurements. The graticule may be permanently marked inside the face of the CRT, or it may be a transparent external plate made of glass or acrylic plastic.

An internal graticule eliminates parallax errorbut cannot be changed to accommodate different types of measurements. These are found in analog phosphor storage oscilloscopes. These are distinct from digital storage oscilloscopes which rely on solid state digital memory to store the image.This is an incomplete list of front projection CRT video projectors. A number of projector manufacturers produced projectors that were sold under the brand of different makers, sometimes with minor electrical or cosmetic modification.

The following list reflects these re-badged projectors. From Wikipedia, the free encyclopedia. This list is incomplete ; you can help by expanding it.

First service notes in the service manual are dated early If we assume that the gain of the curved Kodak aluminium screen is around This gives us a number of 49 lumens. Broadcast Newsroom.

The increase is probably due to adoption of newer higher gain Kodak "Ektalite" screens. July Archived from the original on Archived from the original on February 13, Archived from the original on February 4, Retrieved 14 October Curt Palme. SIM 2 website. Projector central. Projector Central. Projector specifications Australia. Projector Specifications Australia.

Categories : Projectors. Hidden categories: Incomplete lists from August Namespaces Article Talk.

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crt spec list

Approximately were produced and sold in the Boston area [3].Where have all the CRT televisions gone? But you'd be wrong. While the big TV manufacturers have stopped making their own CRT-based sets, some are still selling them. And, as we'll see, their components are also being given new lives, thanks to stringent recycling arrangements here and in the rest of the EU.

The invention of the cathode ray tube in is what originally made television possible. Scottish inventor John Logie Baird is credited with the first demonstration of this TV technology in In the UK, many of us still own one. This writer has a colossal Toshiba DB, still working after 10 years, and a hardy inch portable plugged into a Freeview box in the kitchen. And these are getting cheaper all the time. You could give it away for freetrade it in against the purchase of a new TV if you can find a suitable offer or try to sell it for peanuts on eBay.

Of course, most old TVs get dumped. Under a watchful WEEE, two things can happen. Centre," a spokesperson for South Gloucestershire council told us, "it will either be sent for reuse or, if it is not in near-to-working order, for recycling.

Over at the Recycling Lives website you can type in your postcode to see where your nearest recycling centre is and what types of waste they process. The two pieces are then recycled in different ways to sort the glass from the chemicals. All the other components are recycled along with the plastics and metal casings.

Free Tube Substitution Guide Manuals & Free Tube Data Sheet Manuals

Circuit boards, for example, contain precious metals and any steel recovered can be re-used. Recycled plastics can eventually be used in a wide variety of new products such as polyethylene bin liners, carrier bags, compact disc cases, garden furniture, water butts and even fibre filling for sleeping bags. Worldwide, the writing is on the wall for CRT. Production is certainly dipping. According to the most recent hard data from DisplaySearch, CRT shipments totalled 23 million units in Q3down 15 per cent from 's numbers.

But when you compare this to the 26 million LCDs and almost 4 million plasmas that were shipped in the same time period, you can see that CRT technology is still hanging in there. The key to CRT's staying power at least for now is price.

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Now read 15 great uses for your old PC. Sign up for the free weekly TechRadar newsletter Get tech news delivered straight to your inbox. Register for the free TechRadar newsletter and stay on top of the week's biggest stories and product releases. Fare thee well cathode ray tube This is where old CRTs go to die See more Television news.It has many circuit diagrams, using these tubes and all the information, about these original vacuum tubes.

Very handy for ordering tubes that are over priced or hard to get today. The substitutes work the same. This manual provides substitutions for the first radio receiving tubes till This works for all radios made on or before Radio receiving tubes and swap tips for the new 7 pin and 9 pin miniature tube types. How to replace many Octal tube types with the new then miniature ones. Hence problem with that tube or its soldered to tube pins circuit components.

This manual tells what radio receiving tube will substitute for another and work as a replacement. If no replacement is shown for a particular tube number, there is no replacement and you must use original tube number to replace a defective tube. You can use a European tube in a USA radio for example.

This RCA BELOW manual gives full tube data on all the modern receiving tubes and others back to about mid 's,but good for future tube design work. Easily select individual manual pages and print out. These guide manuals are provided by nucow.JavaScript seems to be disabled in your browser.

For the best experience on our site, be sure to turn on Javascript in your browser. See how it has impacted our line-up. The result: same badass tool.

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Entirely new look. This knife arrives with stepped up D2 blade steel, a handle in black stonewash finish, a frame lock for safety, and friction grooves on the drop-point blade for a secure grip. Be careful where you point it. Schwarz in Boise, Idaho The knife version of a 4x4. No matter if your camp kitchen is on a flat rock miles from anywhere or a picnic bench in the park, this knife is perfectly suited for slicing the campfire-charred sirloin.

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This compact fixed blade neck knife with tough handles has been given a throwback cleaver blade that always sparks campfire conversation. In the camp kitchen or around the house it feels equally at home.

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It hardly occupies more space than a fountain pen but comes out swinging with a fast flipper opening and a sleek, spear-point blade. Learn More. Toll Free: Local: Fax: Email: webcontact crkt.

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