We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
Book Reviews
Electron Tubes
Volume 1—1935-1941; Volume 11—1942-1948
Published (1949) by RCA Review, Princeton, N. J. Volume I — 475 pages + x pages. 238 illustrations. Ql/t X 9 inches. Price, $2.50; $2.70 outside of the United States. Volume II — 454 pages + x pages. 241 illustrations. 6:/4 X 9 inches. Price, $2.50; $2.70 outside of the United States.
These two volumes contain 40 reprints of papers and 52 summaries of papers on the subject of vacuum-tube theory and practice. They were all written by RCA authors and have been collected in these volumes from the many scientific and technical journals in which they originally appeared between the years 1935 and 1948. The papers and summaries in each volume have been divided into four groups: general, transmitting, receiving, and special. Each volume also contains a bibliography of additional papers and articles by RCA authors on vacuum tubes and related topics which have appeared in journals and trade papers. The bibliography in Volume I has some 400 items published between 1919 and 1941 while that in Volume II has 170 published between 1942 and 1948.
Although the papers in these volumes have all been available for some time to those with access to a fairly complete library of scientific periodicals, motion picture engineers in general who are interested in the theory and application of electron tubes will be grateful to the Radio Corporation of America for bringing together from many widely scattered sources these contributions from RCA workers. Motion picture sound engineers will find many of these papers of pa •ticular interest and value if they are not already familiar with them.
L. F. BROWN
Consulting Engineer
1236 Green Acre Ave.
Hollywood 46, Calif.
The Sound Track Book of the Theatre
Published (1949) by The Sound Track, 1001 W. Washington Blvd., Chicago 7, Illinois. Also available from Motiograph, Inc., 4431 W. Lake St., Chicago 24, Illinois, and from Motiograph dealers. 440 pages -f 5-page index. 315 illustrations and diagrams, 6X9 inches. Price: $10.00.
The finest symposium of the theater to be published in years. This book covers the entire field of the theater and consists of reprints of the most important articles appearing in the magazine, The Sound Track.
Part One — PROJECTION AND SOUND — covers minutely every part of the projector from intermittents and shutters to belts and bearings. Naturally the chapters lean heavily on Motiograph design and equipment but it is written with a wide enough scope so that the information is applicable to any type of projection equipment. 422