BOOK CODE 3005
World War II galvanized the United States into a level of action in
almost every walk of life within weeks of December 7, 1941. Everyone
realized almost immediately that science and the educational establishment would play a vital role in the execution of the conflict. Thus
the great scientific centers of the nation were quickly recruited to
study and solve problems for the military. Primary among these were
communications-including such things as radar, among many others.
One of the most distinguished of these study centers was the
Massachusetts Institute of Technology in Cambridge, where The
Radiation Laboratory was established. It operated throughout the war
under the supervision of the National Defense Research Committee.
This effort brought together the best minds of the times for the problems at hand. The Radiation Lab worked closely with research counterparts in Great Britain, as well as men and women in laboratories
throughout the free world. Thousands participated.
After the War the participants at M.I.T. suggested to the government's
Office of Scientific Research and Development that a series of 28 volumes be issued summarizing the vast amount of facts discovered by
the wartime effort. This 18th volume of the series appeared in 1946.
This volume, Vacuum Tube Amplifiers, edited by George E. Valley, Jr. and
Henry Wallman, was written by ten authors including Wallman. The editors were assisted by Ms. Helen Wenetsky. The work at The Radiation
Lab primarily explored very high frequency amplification. The editors
point out, however, that they intended a useful, general review of tube
technology, not just an exploration of radar. They divided the material
into two parts, "...the first part to include the basic principles of circuit
design, the second...the assembly of basic circuits into functional instru-
ments, such as receivers, and data display systems."
Among tube enthusiasts the book has
taken on the aura of a classic, almost as
desired as the great Langford-Smith volume. It is here reprinted complete and
"The above is reprinted, with permission, from Audio Amateur: Vacuum Tube Amplifiers: MIT Technical Series #18 ,2000. © Copyright 2000 by Audio
Amateur Corporation. P.O. Box 876, Peterborough, NH 03458, USA. All rights reserved."
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UK / EUROPE / REST of WORLD - £31.00