Elements of acoustical engineering (1940) Elements of acoustical engineering elementsofacoust00olso Year: 1940 144 DIRECT RADIATOR LOUD SPEAKERS of curvature of the wave front with the distributor being considerably less than that of the plain cone shows that the distributor broadens the radia- tion pattern. The vertical section, Fig. , shows that the distributor SECTIONAL VIEW A VERTICAL SECTION Fig. High frequency sound distributors for direct radiator loud speakers. A. The contour of equal phase for a plain cone. B. The horizontal cross-sectional view of a cone with a vane di
Elements of acoustical engineering (1940) Elements of acoustical engineering elementsofacoust00olso Year: 1940 144 DIRECT RADIATOR LOUD SPEAKERS of curvature of the wave front with the distributor being considerably less than that of the plain cone shows that the distributor broadens the radia- tion pattern. The vertical section, Fig. , shows that the distributor SECTIONAL VIEW A VERTICAL SECTION Fig. High frequency sound distributors for direct radiator loud speakers. A. The contour of equal phase for a plain cone. B. The horizontal cross-sectional view of a cone with a vane distributor and the contour of equal phase. C. The vertical cross-sectional view of a cone with a vane distributor. will not broaden the pattern in this direction. In general, in radio or phonograph reproduction the required vertical plane of spread is quite small. If a broader pattern is required in this plane crossed vanes may be used.
Size: 2321px × 862px
Photo credit: © Bookworm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
