Continuous Wave Gas Laser

Continuous Wave Gas Laser: The first Continuous Wave Gas Laser, in 1961, was a gas laser using a mixture of helium and neon gases. These are still used, and a…

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Series Resistance Microammeter

Series Resistance Microammeter: High d.c. voltages are usually measured by connecting a very high resistance (few hundreds of megaohms) in Series Resistance Microammeter as shown in Fig. 7.1. Only the…

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7 Segment Display using Gaseous Discharge

7 Segment Display using Gaseous Discharge: Segmented gas discharge display work on the principle of gas discharge glow, similar to the case of Nixie tubes. They are mostly available in…

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