File:The design and construction of a radio telephone station (1921) (14755759022).jpg

Identifier: designconstructi00pear (find matches)
Title: The design and construction of a radio telephone station
Year: 1921 (1920s)
Authors: Pearce, W. W Rosendal, D. L
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Contributing Library: Paul V. Galvin Library, Illinois Institute of Technology
Digitizing Sponsor: CARLI: Consortium of Academic and Research Libraries in Illinois

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Digitized by tine Internet Arcliive in 2009 witli funding from CARLI: Consortium of Academic and Researcli Libraries in Illinois www.archive.org/details/designconstructiOOpear THE DESIGN AND CONSTRUCTION OFA RADIO TELEPHONE STATION JO A THESIS PRESENTED BY W. W. PEARCE AND D. L. ROSENDAL TO THE PRESIDENT AND FACULTY OF ARMOUR INSTITUTE OF TECHNOLOGY FOR THE DEGREE OF BACHELOR OF SCIENCE INELECTRICAL ENGINEERING JUNE 2, 1921 APPROVED: ILLINOIS INSTITUTE OF TECHNOLOGY P.cre„o,„rE.ec.KealE„.nee.., NOLOGYPAUL V. GALVIN LIBRARY36 WEST 33R.D SIRECHICAGO, IL 60616 36 WEST 33R,D STREET ° ^ -^ ,.-i.rfi: ; Dean of Cultural Studies TABLE OF CONTENTS !• Introduction 2, History 3, Methods in Use 4# Theory of Vacuum Tube 5« Transmitter 6, Receiver 7, Results ^9824 OBJECT The object of this thesis is to design,construct, and operate a radio telephone stationat Armour Institute of Technology, Chicago, 111.
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1. INTRODUCTION Although a great number of experimentshave already been performed with the regularwireless telegraph set which was installed inthe year 1920, the wireless classes have beenunable to carry on any vvirelese telerhone ex-periments, due in part to lack of api^aratus,and also in part, to lack of time necessary forthe calculaticns and construction work incidentto the installation of a wireless telephone set. In constructing the set, the apparatusbelonging to the physics department was uaed inaddition to several pieces constructed or pur-chased when neces-ary. The station is locatedin a room of the Physics Laboratory on the sec-ond floor of Chapin Hall. The antennae are sup-ported above Chapin Hall and the Mission Build-ing by wooden masts and one of the to7;ers on theArmour Flats. Calibration curves, diagrams,photographs, circuit constants, etc., have beenmac.e for the set. Thus should the apparatus betaken apart at any time, it can readily be setlip again without recalculatdesignconstructi00pear

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