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  2. Microwave oven - Wikipedia

    en.wikipedia.org/wiki/Microwave_oven

    Consumer household microwave ovens usually come with a cooking power of between 600 and 1200 watts. Microwave cooking power, also referred to as output wattage, is lower than its input wattage, which is the manufacturer's listed power rating.

  3. National (brand) - Wikipedia

    en.wikipedia.org/wiki/National_(brand)

    National was formerly the premier brand on most Matsushita products, including audio and video and was combined in 1988 as National Panasonic after the worldwide success of the Panasonic name. After 1980 in Europe , and 1988 in Australia and New Zealand , Matsushita ceased the usage of the "National" brand, and sold audiovisual products ...

  4. Microwave - Wikipedia

    en.wikipedia.org/wiki/Microwave

    Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves but longer than infrared waves. Its wavelength ranges from about one meter to one millimeter, corresponding to frequencies between 300 MHz and 300 GHz, broadly construed.

  5. Panasonic - Wikipedia

    en.wikipedia.org/wiki/Panasonic

    Panasonic Holdings Corporation [b] is a Japanese multinational electronics company, headquartered in Kadoma, Osaka Prefecture, Japan.It was founded in 1918 as Matsushita Electric Housewares Manufacturing Works [c] in Fukushima, Osaka City by Kōnosuke Matsushita.

  6. Microwave transmission - Wikipedia

    en.wikipedia.org/wiki/Microwave_transmission

    Microwave signals are normally limited to the line of sight, so long-distance transmission using these signals requires a series of repeaters forming a microwave relay network. It is possible to use microwave signals in over-the-horizon communications using tropospheric scatter , but such systems are expensive and generally used only in ...

  7. Cavity magnetron - Wikipedia

    en.wikipedia.org/wiki/Cavity_magnetron

    The modern magnetron is a fairly efficient device. In a microwave oven, for instance, a 1.1-kilowatt input will generally create about 700 watts of microwave power, an efficiency of around 65%. (The high-voltage and the properties of the cathode determine the power of a magnetron.)