F. H. Richardson's bluebook of projection (1935)

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CONTENTS xiii Page XXIII. Characteristics of Alternating Current . . . . 465 XXIV. The A.C. Transmission Line 470 XXV. Component Parts of a Sound System 481 XXVI. Power Supply for Sound Systems . . 490 XXVII. Sources of Sound Current 511 XXVIII. Theory and Wiring of Amplifiers 536 XXIX. Speakers 584 XXX. Drives 599 XXXI. Operation of Sound Equipment 626 XXXII. Maintenance of Sound Equipment 645 Definitions, Mathematical Terms, Standard Release Print, Etc. (j ■ H91 1 0 . s? f?i rt : ^ t&O'LU