| 21. | 1980-Bi-directional filter system for amplifying signals in separate frequency bands
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| 22. | In the 1920s, amplifying vacuum tubes revolutionized both radio receivers and transmitters.
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| 23. | It involves amplifying small bits of genetic code so it can be easily analyzed.
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| 24. | He blames media reports for amplifying the misery.
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| 25. | For example, it sells hearing aids, phone amplifying systems and other devices.
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| 26. | "We're taking a natural feature and amplifying it ."
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| 27. | City Opera insists it is not amplifying anything.
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| 28. | To first order, an amplifying device has a fixed gain-bandwidth product.
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| 29. | Every possible volume in between can be made by amplifying and blending the samples.
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| 30. | Regenerative amplifiers operate by amplifying single pulses from an oscillator ( see above ).
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