CATALOG 1952-1953 EL. 468.-Electrical Machinery IV. 3 hours, and 5 hours laboratory. 5 credits. The second half of the course EL. 467-468. Offered 2. EL. 471.-Electrical Machinery II. 3 hours, and 3 hours laboratory. 4 credits. Prerequisite: EL. 363. Offered 1, 2. For communication majors. Fundamentals of alternating current machinery. Ex- perimental tests on alternating current machinery. EL. 472.-Electrical Engineering Problems (Electronics). 3 hours, and 3 hours computation period. 4 credits. Prerequisite: EL. 465. Offered 1, 2. Selected problems and projects in radio engineering and electronics with emphasis on the complete solution, including design, manufacture, and test. EL. 473.-Industrial Electronics. 3 hours, and 3 hours laboratory. 4 credits. Prerequisite: EL. 346, EL. 362, EL. 363. Offered 1, 3. Analysis of vacuum tube application with special emphasis on industrial devices such as high frequency heaters, rectifiers and inverters, timers, photoelectric controls, voltage regulators, and instruments. EL. 474.-Electrical Engineering Problems (Power). 3 hours, and 3 hours computation period. 4 credits. Offered 2. Selected problems and projects in the field of electric power engineering with emphasis on the complete solution, including selection, design, application, and opera- tion of electrical equipment and facilities. EL. 476.-Advanced Industrial Electronics. 2 hours, and 3 hours labora- tory. 3 credits. Prerequisite: EL. 473. Offered 2. Advanced study of industrial applications of electronic devices. EL. 493.-Electrical Design and Experimental Procedure. Variable credit. Prerequisite: Approval of Instructor. Offered 1, 3. Special projects are studied and reports prepared thereon. EL. 494.-Electrical Design and Experimental Procedure. Variable credit. The second half of the course EL. 493-494. Offered 2. GRADUATE COURSES Prerequisites: A college course in Physics, Differential and Integral Calculus, and a minimum of thirty-six credits, or the equivalent in courses in the general field of electrical engineering, together with special prerequisites stated for individual courses. EL. 531.-Advanced Electrical Measurements. 2 hours, and 4 hours lab- oratory. 3 credits. Offered 1. Theory and practice of electrical measurements at extremes of voltage, current, power and frequency. EL. 532.-Advanced Electrical Measurements. 2 hours, and 4 hours lab- oratory. 3 credits. The second half of the course EL. 531-532. Offered 2. EL. 535.-Electric Network Synthesis. 3 hours, 3 credits. Prerequisite or corequisite: MS. 555. Offered 2. Methods of circuit synthesis for prescribed steady-state or transient response. EL. 536.-Electric Network Synthesis. 3 hours, 3 credits. The second half of the course EL. 535-536. Offered 3. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.