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Electrical Definitions |
Ultradyne Reception : A system of radio reception similar to the Superheterodyne system,in which the intermediate frequency is obtained from auxiliary oscillations superimposed upon the anode circuit of the first valve. |
UPS: A device used to supply uninterrupted power supply in case of power failure.It comes in various VA ratings and stand by times. |
Uvicon : A television camera tube that has a conventional vidicon scanning section preceded by an ultraviolet-sensitive photocathode,an electron-accelerating section and a special target. |