Author: Louis Costrell

Publisher: Forgotten Books

Published: 2017-11-18

Total Pages: 24

ISBN-13: 9780331347807

Excerpt from Development and Current Status of the Standard Nuclear Instrument Module (Nim) System In 1948 Bardeen and Brattain of the Bell Telephone Laboratories first announced the point contact transistor5 and this was followed a few years later by the development of the junction transistor. Though tran sistors are extremely small compared to vacuum tubes and consume far less power, transistorized instruments that emerged in the 1950's were none the - less constructed in a manner quite similar to that of their vacuum tube predecessors. Thus the instruments utilized l9 - inch front panels and contained their own dc power supplies operated from the ac line. It rapidly became apparent that such construction was quite uneconomical and inefficient, that a number of transistorized instruments in modular form could be accommodated in the space occupied by a single l9-inch panel, and that a single dc power supply could provide the necessary power to such a multiplicity of instruments. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.