Concepts of Alternating Current 2

AET by the chapter

The essential guide to aircraft electronics associated with AET certification, for the student with little or no background in this field. This course has been produced as a way to present the material covered in the companion textbook and workbook and provide a complete learning experience at home, at work, or in a school setting.

The online lessons present only the essence of the material. This arrangement allows the student who has some knowledge, and only needs a refresher to quickly move through the online lessons. When a more detailed explanation is necessary, it can be found in the companion textbook. Additional examples and problems for solving are available in the workbook. Textbook and workbook are available at

Your Instructor


William Tramper is an NCATT-certified Aircraft Electronics Technician (AET), FAA certificated Airframe & Powerplant Mechanic, and Private Pilot. He served in the United States Air Force as an Avionics Guidance and Control Systems Specialist working on C-130 Hercules aircraft, then transitioned to civilian aviation where he has worked as an avionics installer and as a tech rep for a leading avionics manufacturer. William helped develop the first AET standard and certification under NCATT and has remained committed to the further development of avionics standards and endorsements, now serving as Vice-Chairperson of ASTM Committee F46 on Aerospace Personnel and Chairperson of ASTM Committee F46.02 on Avionics and Information Technologies Endorsements. William lives in Michigan with his wife and two children, and is currently the President of Azimuth Aerospace Solutions.

David Jones serves as the Senior Writer/Editor at Avotek Information Resources and is active in all aspects of the publishing business. He is a graduate of the Aviation Engineering Technology program at Western Michigan University, and holds FAA flight and mechanic certifications. He has over 40 years experience in aviation education as an instructor, administrator, curriculum developer and technical writer. David served on the ARAC Workgroup for Part 147 revision and has followed that with participation in additional FAA programs. He currently participates in the ACS workgroup which is focused on updating training and testing for nearly all FAA Certificates and ratings. Born in Michigan, and currently residing in Missouri, David has lived and worked all over the country during his career in aviation education.

Course Curriculum

  Concepts of Alternating Current 2
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Frequently Asked Questions

Is this all I need to prepare for the AET test?
In a word, No! This course has been designed to help the technician prepare for the AET test. It assumes that at some point, maybe recently, maybe a long time ago, you have studied basic electricity and electronics. The course serves as a companion to Avotek's Fundamentals of Aircraft Electronics text and workbook. These books provide a much deeper explanation, and many more examples and sample problems. We recommend that you use the online course as a companion to the books. These books are available here:
Do I have to study the lessons in order?
This course has been designed to be the perfect companion for the textbook and you will quickly discover that the Lessons and Lectures in the online product are in the same order as the Chapter and Section names in the book. This allows you to quickly find the subject in the textbook or workbook if you need more details, examples, or additional study questions.
How long do I have access to the course?
Your purchase will give you access to this material for one year. That should be more than adequate to allow you to study for your AET exam. Because this course is preparing you for a currently published exam it is to your advantage to move steadily through the material and take the test as soon as you are ready. However, the content will be revised as changes to the ASTM standards and the AET exam are published so you will never miss out on having the latest information.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, please contact us and let us try to resolve your issue.

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