Design Considerations of Portable Transistorized Public Address Systems
An approach is outlined to the design of high performance transistorized public address systems, taking econimic factors into account. A step-by-step procedure is given toward the design of a 25-watt system which results in an over-all efficiency better than 75%. The design of a 5-watt system for use in a hand-held megaphone is also outlined. A method for control of acoustic feedback is described.
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