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• Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …   Wikipedia

• Oscilloscope — This article is about current oscilloscopes, providing general information. For history of oscilloscopes, see Oscilloscope history. For detailed information about various types of oscilloscopes, see Oscilloscope types. Illustration showing the… …   Wikipedia

• Vectorscope — A vectorscope is a special type of oscilloscope used in both audio and video applications. Whereas an oscilloscope or waveform monitor normally displays a plot of signal vs. time, a vectorscope displays an X Y plot of two signals, revealing… …   Wikipedia

• Reticle — Crosshairs redirects here. For the fictional characters in Transformers, see Crosshairs (Transformers). A comparison of different reticles used in telescopic sights. The lower right represents a reticle found in the scope of a Russian SVD sniper… …   Wikipedia

• Geographic coordinate system — Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 3.12MB) …   Wikipedia

• Eyepiece — For the device for looking through a camera, see viewfinder. A collection of different types of eyepieces. An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is… …   Wikipedia

• Otokar Akrep — Akrep ZPT Type APC Place of origin  Turkey Service h …   Wikipedia

• Gyro gunsight — A gyro gunsight is a type of gunsight in which target lead (the amount of aim off in front of a moving target) and bullet drop are allowed for automatically, the sight incorporating a gyroscopic mechanism that computes the necessary deflections… …   Wikipedia

• Oscilloscope history — This article discusses the history and gradual development of the Oscilloscope. Contents 1 Hand drawn oscillograms 2 Automatic paper drawn oscillograph 3 Photographic oscillograph 4 …   Wikipedia

• Latitude — This article is about the geographical reference system. For other uses, see Latitude (disambiguation). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are actually halves of great… …   Wikipedia

• Mercator projection — of the world between 82°S and 82°N. Mercator world …   Wikipedia