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H6 - Federal Item Name Directory
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00164
LOUDSPEAKER-MICROPHONE
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FIIG: A11600
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Entry Date: Apr-01-1974
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Concept:
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Status: A
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Applicability: C
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Type: 0
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Definition: An item consisting of a loudspeaker and a microphone housed in a common case. It may or may not include electronic circuitry to control its operation. Transmit-receive switching may be controlled by automatic, manual or remote operation. For a loudspeaker used as a microphone, see LOUDSPEAKER, (as modified).
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Basic INC: 70166
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Basic Name: LOUDSPEAKER
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Description: 1. An item designed to convert audio frequency electrical energy into acoustic energy which it projects over a distance. It may include one or more drivers, horns, attenuators, or transformers. It may be cased or include mounting.
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Corresponding NIINs: 219
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