54. Basic ElectronicsTransistor and vacuum tube principles and basic circuits. Industrial applications stressed. For the technical or trade student not majoring in electronics. Two lecture-recitations and one laboratory period a week. Prerequisite and/or concurrent: Electronics 28. S (3). Staff 61. Communications Circuits LaboratoryTesting, adjustment, and operation of radio frequency circuits. Correlated with Electronics. Three laboratories. W (3). Staff 62. Communications Circuits Theory of operation, adjustment, and maintenance of medium and high frequency transmitters, radio-frequency circuits, antennas, modulation, and power supplies. Prerequisite: Electronics 52. Five lectures. W (5). Staff 65. Industrial Electronics LaboratoryTesting and operation of basic circuits. Two or three laboratories. W (2 or 3). Staff 66. Industrial ElectronicsIndustrial applications of electronic circuits; fundamental concepts of induction and dielectric heating, magnetic amplifiers, special oscillator circuits, and power rectification. Prerequisite: Electronics 52. Three or five lectures. W (3 or 5). Staff 71. Basic Electronics LaboratoryOperation and testing circuits studied in Electronics 72; schematic and blueprint reading, circuit analysis, and use of basic test equipment. Three or five laboratories. A (3 or 5). Staff 72. Basic Electronic CircuitsContinuation of Electronics 36. Prerequisite: Electronics 36. Five lectures. A (5). Staff 75. Electronic Circuit Maintenance Maintenance of basic electronic circuits and equipment. Test instruments, radio, television, tape recorders, amplifiers will be used to develop the student's skills. Three or five laboratories. W (3 or 5). Staff 76. Electronic Circuit OperationBasic circuitry found in many electronic equipments will be taught. Particular stress will be placed on test equipment, radio, television, tape recorder, and amplifier circuits. Prerequisite: Electronics 52 or equivalent. W (5). Staff 298 77. Color Television Maintenance Operation, maintenance and adjustment of color television receivers; servicing and maintenance of all types of electronic equipment is encouraged. Two or three laboratories. S (2 or 3). Staff 78. Color Television CircuitsColor television theory and maintenance receivers. Prerequisite: Electronics 76. Three or five lectures. S (3 or 5). Staff 101. Instruments and Measurements Laboratory Operation of equipment studied in Electronics 102. Two laboratories. A (2). Staff 102. Instruments and MeasurementsBasic circuitry and operation of electronic instrumentation devices. Three lectures. A (3). Staff 103. High Frequency Measurements Laboratory High and ultra high frequency signals generated for tests and measurements by the instruments and circuits studied in Electronics 106. Two laboratories. W (2). Staff 106. High Frequency Measurements Theory and operation of instruments for measuring high and ultra high frequency signals. Three lectures. W (3). Staff 111. Telemetric Laboratory Experimental Loops established for the student to become acquainted with telemetric operation. Two laboratories. S (2). Staff 112. Telemetric Principles Methods and principles used in various types of sj'stems to transfer measurements by wire and wireless. Three lectures. S (3). Staff 113. Servomechanisms LaboratoryOperation and adjustment of closed loop control systems. Two laboratories. W (2). Staff 114. ServomechanismsIntroductory theory and analysis of linear closed-loop control systems including electronic, electro-magnetic, and mechanical. Three lectures. W (3). Staff 117. Magnetic Amplifier LaboratoryOperation and adjustment of magnetic amplifier and control devices and circuits. Two laboratories. S (2). Staff 299