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understanding of the gross differences among equipment types, so that the new engineer can choose. The presentation is exactly at the proper level for the intended audience.
The content runs the complete range from television fundamentals to color television. Considerable space is devoted to the image orthicon tube and the camera in which it is used. Field pickups and the appropriate equipment are discussed in some detail. Studio equipment, lighting, projectors and film problems are well treated, as are the TV transmitter, antennas and feed lines. Even building planning is presented, with many helpful hints for the new broadcaster. The chapter on color television covers the field-sequential system which was the law of the land at the time of the manuscript, but which has since been replaced by the compatible system of NTSG. However, there are many applications of the field-sequential system which well justify the treatment.
All through the chapters runs the theme of achieving a professional level of operations. It is clearly demonstrated that care with small matters will automatically resolve system difficulties and result in an operation of which the newcomer to television can be proud.
This volume deserves wide distribution in the radio and television field as a thoroughly practical operating handbook. It proves that television, while an electronic miracle, is still a creature of ordinary man ; and that ordinary man can understand and control it. This book is wholeheartedly recommended to the membership of the Society for interesting reading and conscientious study. In preparing it, Mr. Chinn has rendered a valuable service to the television broadcast industry. — A. E. Hungerford, Jr., General Precision Laboratory Inc., Pleasantville, N.Y.
Thermionic Vacuum Tubes and Their Applications, 6th ed.
By W. H. Aldous and Edward Appleton. Published (1952) by John Wiley & Sons, Inc., 440 Fourth Ave., New York 16, N.Y. 151 pp. + 98 illus. 4 X 6| in. $2.00.
This little book treats conventional vacuum tubes, including magnetrons, klystrons and traveling wave tubes as to internal electron action and the applications
thereof as amplifiers, rectifiers, frequency changers, oscillators, reactance tubes and relaxation devices.
Numerous equations are given in explanation of the phenomena to the physicist and for purposes of design for the engineer. A terse approach has been taken and more factual information has been provided than would be surmised from the size of the volume.
The book is British : W. H. Aldous being on the Research Staff of the M. O. Valve Go. at the G.E.C. Research Laboratories, Wembley, England; and Sir Edward Appleton being Principal and Vice-Chancellor of Edinburgh University.
Over a hundred references are listed for further reading. — Harry R. Lubcke, Reg. Patent Agent, 2443 Greston Way, Hollywood 28, Calif.
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The Gaumont-Kalee Flutter Meter is designed to measure small frequency variations of a given carrier frequency. If the meter is provided with
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