The portable radio "Zenith Royal 500" has been produced since November 1955 by the "Zenith Radio" corporation, USA.
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A legendary radio receiver, at least for America.
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This was the first version of a radio receiver, and there were subsequently more than five of them.
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They differed in chassis numbers (7XT40, 7XT40Z, 7XT40Z1, etc.), design, case colors.
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Probably from the fourth option there was already a printed circuit board.
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The first version of the radio receiver, like the next two, did not have a printed circuit board and was assembled by surface mounting.
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The receiver case is made of nylon, which is virtually unbreakable than polystyrene.
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Royal - translated as Royal.
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Superheterodyne with 7 transistors.
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Range 535 ... 16000 kHz.
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IF 455 kHz.
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AGC.
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Maximum output power 150 mW.
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The range of reproducible sound frequencies is 250 ... 4500 Hz.
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Powered by 4 AA cells.
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The dimensions of the radio receiver are 145x85 x 38 mm.
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Weight 390 grams.
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