CONTENTS : - OFFICIALS AND COMMITTEE PERSONNEL - FOREWORD - PROGRAM OF THE FIFTH NATIONAL ELECTRONIC CONFERENCE - SOME OBSERVATIONS ON THE STATE OF THE REPUBLIC - CLOSED CYCLE RECORDING OSCILLOGRAPHS - D-C AMPLIFIER TECHNIQUES IN OSCILLOGRAPHY - LOW FREQUENCY NOISE IN TRANSISTORS - EXPERIMENTAL EXAMINATION OF RECTIFIER THEORY AS APPLIED TO THE SELENIUM RECTIFIER - THE PHOTOFORMER IN ANACOM CALCULATIONS - LINEAR ELECTRONIC ANALOG COMPUTER DESIGN - BONE DENSITY COMPUTING MACHINE - A PULSE LENGTH SORTER AND COUNTER - THICKNESS GAGE FOR MOVING MATERIAL - MULTIPLE CHANNEL CATHODE RAY INSTRUMENTATION OF NON- ELECTRICAL QUANTITIES - A COMPUTER FOR SOLVING SECULAR EQUATIONS - COORDINATE TUBES FOR USE WITH ELECTROSTATIC STORAGE TUBES - ELECTRONIC ANALOGUE FOR HEATING SYSTEM ANALYSIS - A UNIVERSAL-APPLICATION CATHODE-RAY SWEEP TRANSFORMER WITH CERAMIC IRON CORE - A NEW IMAGE ORTHICON - TWO NEW TELEVISION TUNERS - END LOADED AND EXPANDING HELICES AS BROAD BAND CIRCULARLY POLARIZED RADIATORS - IMPEDANCE AND RADIATION CHARACTERISTICS OF SLOTTED CYLINDER ANTENNAS - A COMBINATION SLOT ANTENNA AND RESONANT TANK CIRCUIT - THE CHANNEL GUIDE ANTENNA - THEORETICAL LIMIT TO TIME DIFFERENCE MEASUREMENTS - ELECTRONIC CONTOUR MAPPING - AUTOMATIC CALIBRATION OF OSCILLATOR SCALES - MAGNETIC AMPLIFIER STUDIES ON THE ANALOG COMPUTER - THE PROBLEM OF THE MAGNETIC AMPLIFIER and SOME APPROACHES TO ITS SOLUTION - AUDIO FREQUENCY TRANSFORMER WITH RANGE EXTENDED BELOW ONE CYCLE PER SECOND - A NEW MAGNETIC RECORD DUPLICATING PROCESS - DUPLICATION OF MAGNETIC TAPE RECORDINGS BY CONTACT PRINTING - SOME ASPECTS OF RESEARCH MANAGEMENT - RESEARCH MANAGEMENT FOR THE RESEARCH FOUNDATION - RESEARCH MANAGEMENT IN THE AMERICAN UNIVERSITY - SOME ASPECTS OF THE ORGANIZATION AND FUNCTION OF INDUSTRIAL RESEARCH - AN AUTOMATIC BUILT-IN ANTENNA FOR TELEVISION RECEIVERS - THE ELECTRONICALLY DRIVEN RIPPLE-TANK AS AN AID TO PHASE-FRONT VISUALIZATION - THE ELECTROMAGNETIC FIELD IN THE VICINITY OF A LINEAR CONDUCTOR - CORRECTION OF SPHERICAL ABERRATION BY A PHASED LINE SOURCE - STATISTICAL THEORY OF COMMUNICATION - STATISTICAL PREDICTION OF NOISE - TRAFFIC HANDLING CAPACITY OF PAIRED-PULSE CODING FOR 100 CHANNEL DISTANCE MEASURING EQUIPMENT (DME) - THE HIGH FREQUENCY RESPONSE OF CYLINDRICAL DIODES - RADIAL BEAM VELOCITY MODULATED MICROWAVE TUBE - THE 6BN6 GATED BEAM TUBE: Part 1. The Laboratory Prototype And Its Circuit Applications - THE 6BN6 GATED BEAM TUBE: Part 2. The Commercial Realization Of The 6BN6 - ELECTROMAGNETIC WAVES IN CIRCULAR WAVE GUIDES CONTAINING TWO COAXIAL MEDIA - SMALL SURFACE MICROWAVE DIFFRACTION - THE MAGNETIC CROSS VALVE and its APPLICATION TO SUBFREQUENCY POWER GENERATION - COUPLING BETWEEN TWO DEGENERATE MODES THROUGH SLOTS CUT IN THE WALL OF CAVITY - APPLICATION OF SUPERSONIC ENERGY TO HIGH SPEED ELECTRONIC RECORDING - SUPERSONIC CONTROL of a LANTERN SLIDE PROJECTOR - A NEW RECTIFIER TUBE FOR EXTREMELY HIGH POWER AND VOLTAGE LEVELS - PROGRESS REPORT ON DEVELOPMENT OF THE TRAVELLING WAVE TUBE AS A POWER AMPLIFIER - EFFICIENCY OF REFLEX OSCILLATORS - DESIGN FEATURES AND SOME APPLICATIONS OF A NEW PHOTOCELL - A VERSATILE CRYSTAL CONTROLLED SOURCE OF ANGLE MODULATION - TRANSIENT RESPONSE OF FILTERS* - CONTINUOUSLY ADJUSTABLE LOW AND HIGH-PASS FILTERS FOR AUDIO FREQUENCIES - A VARIABLE SPEED TURNTABLE AND ITS USE IN THE CALIBRATION OF DISK REPRODUCING PICKUPS - METHODS AND INSTRUMENTS FOR THE VISUAL ANALYSIS OF COMPLEX AUDIO WAVEFORMS - DEVICES FOR SPEECH ANALYSIS AND COMPRESSION - CATALOGUE OF EXHIBITORS - CONTENTS PREVIOUS ISSUES