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• Oscilloscope
  ...hode-ray tube for use in an oscilloscope. Numbers in the picture indicate: 1. Deflection voltage electrode; 2. Electron gun; 3. Electron beam; 4. Focusi |isbn= 978-0-85296-999-1
  56 KB (8,370 words) - 14:52, 10 December 2011
• IEEE-488
  ...Interface for Programmable Instrumentation'', '''IEEE-488''' (now IEEE-488.1). It formalized the mechanical, electrical, and basic protocol parameters o ...88.2 built on -488.1 without superseding it; equipment can conform to -488.1 without following -488.2.
  18 KB (2,497 words) - 14:52, 10 December 2011
• Atomic clock
  | image = FOCS-1.jpg | caption = FOCS 1, a continuous cold caesium fountain atomic clock in Switzerland, started op
  32 KB (4,699 words) - 14:52, 10 December 2011

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