222 34-A.B. Industrial Drafting. (Tool and Die Design.) A course in design including the planning and designing of small units involving surface layout, bending, folding, blanking, drawing, piercing, threading, and boring tools or keyes. The related information includes steel hardening, clearances, and basic principles of pattern making and metal shrinkage. 2 quarter hours. Spring. Best 41. Industrial Drafting. Fundamentals of projection and the development of lines, surfaces, angles between planes, intersections 21, 22, and 23. Three quarter hours. Spring. Best 42. Industrial Drafting. (Industry.) A course to provide related information for design courses. Includes information on: properties, strength workability, and weight of available industrial products. Three quarter hours. Autumn. Best 91. Mechanical Drawing and Print Reading. The use of instruments, types of lettering, and graphic solutions, lines and symbols. The drawing of orthographic projections, sections, auxiliary views, revolutions and size, shape descriptions; isometric drawings and the translation of orthographic into pictorial drawings. Two quarter hours. Autumn, Winter, Spring. Best 92. Drafting. Introduction to mechanical drawing. Use of instruments, lettering, lines and symbols, graphic solutions, multiview projection, and dimensioning. Two quarter hours. Autumn, Winter, Spring. Best 93. Drafting. Continuation of Drawing 92 and includes: sections, auxiliary views, pictorial views, revolutions, intersections and developments. Two quarter hours. Autumn, Winter, Spring. Best 94. Drafting. Continuation of Drawing 93 and includes: threads, springs, fasteners, riveting, welding symbols, pipe symbols, electrical symbols and layout, cams, and gears. Two quarter hours. Autumn, Winter Spring. Best 95. Plans and Specifications. Completion of wall sections and floor plans. Blueprint reading. Prerequisite: Drafting 94. Two quarter hours. Autumn. , Best 96. Plans and Specifications. Completion of floor plans and elevations for building. Prerequisite: Drawing 95. Two quarter hours. Winter. Best 97. Plans and Specifications. Completion of building detail drawings. Stair details, structural, fireplace, entrance and other details of construction. AH symbols of construction and fixtures are studied and used. Prerequisite: Drawing 96. Two quarter hours. Best 223 98. Pattern Drawing. (Sheet Metal.)- A course designed to give experience in development and layout of sheet metal patterns using three methods of development; parallel line, radial line, and triangu- lations. Two quarter hours. Autumn, Winter. Best ELECTRONICS 71-A,B. Direct current principles and circuits. A beginning course dealing with direct current circuits as they pertain to electronics. A study of ohms law, series and parallel circuits, battery care and operation, direct current measurements. Theory and laboratory. Prerequisite or concurrent Mathematics 87A or equivalent. Four quarter hours each. 72-A,B. Alternating current principles. A course dealing with the fundamental concepts of alternating current, and its application to circuits containing resistance, capacitance, inductance in various network combinations. Theory and laboratory. Prerequi- laboratory. Prerequisite: Electronics 72 or equivalent. Four quarter quarter hours each. 73-A.B. Vacuum tube theory and applications. A course dealing with construction, operation, and classification of vacuum tubes and basic electronic circuits in which they are used. Theory and laboratory. Prerequisite: Electroncis 72 or equivalent. Four quarter hours each. 74-A,B. Transistor theory and applications. Atomic structure as it applies to transistor theory, semi conductor principles, and basic transistor circuit applications will be covered. Theory and laboratory. Prerequiste: Electronics 72 or equivalent. Four quarter ter hours each. 76. Industrial Electronics. An introduction to some of the many industrial applications of electronic circuits. Fundamental concepts of induction and dielectric heating, magnetic amplifiers, special oscillator and trigger circuits, and power rectification will be introduced. Theory and laboratory. Prerequisites: Electronics Mathematics and Electronics 73 or equivalent. Four quarter hours. 77. Special Electronic Projects. A course designed to give the student an opportunity to accomplish special projects, approved by the instructor and within the capabilities of the student, involving electronic circuits or equipment such as Hi-Fidelity-Phono System for the home, repairing radio and T.V. sets. Theory and shop practice. No prerequisites. Summer only. Three quarter hours. 78. Special Electronic Projects. A continuation of Electronics 77. Theory and laboratory. Summer only. Three quarter hours. 79. Special Electronic Projects. A continuation of Electronics 78. Theory and laboratory. Summer only. Three quarter hours. 81. Radio and Television Servicing; Radio Servicing Principles. Alignment procedures, elementary trouble shooting techniques, and operation of related test equipment are practiced. Theory and shop practice. Prerequisite: Electronics 73. Three quarter hours. 82. Radio and Television Servicing; Introducton to Television. A beginning course in television giving an overview of the complete television system. Each section of the TV receiver is discussed as to its function and place in the complete receiver. Theory and shop practice. Prerequisite: Electronics 73. Three quarter hours.