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Tube Amp Diagnostics & Repair I+II


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Tube Amp Repair I and II courses are two intensive seminars given in a series offering a complete overview of tube electronics circuits, diagnostic testing, modification, and repair techniques from the standpoint of a repair professional, through lectures, demonstrations and Q & A.

Students who have completed this course will be prepared for hands-on repair work on their own amplifiers in our Amp Repair Laboratory!

This course is a part of our Amplifier Repair Technician Program which is open to students with no electronics experience.

Guest Instructor Kye Kennedy brings decades of experience as an amp professional and stage technician, working for an impressive roster of clientele in Nashville, the mid-south and around the globe. His extraordinary amp diagnostics curriculum is well thought out and comprehensive. Here is your chance to learn from a master amp technician who is one of the best in the business.

  • Classroom

    Class size is limited to 8 students.

    Course is taught in by an experienced amplifier professional in our amplifier service shop.

  • Fee

    Includes instruction for two courses.

    Please note that all registrations are final and non-refundable.

    In the event that a student cannot attend a class, written notice must be given in advance to receive a credit to be used on another tuition. Valid credit may be transferred to another course date, or to another student, if so desired.

  • Workshop Safety

    While we make every effort to keep the CSGM workshop clean it can be dusty and at times noisy. We recommend hearing, respiratory, and eye protection be used when working in the shop. We have this safety equipment available for use or purchase when in class and it is the students responsibility to exercise diligent use of these safety measures.

Tube Amp Repair I – Fundamentals

Students will gain an understanding of tube amp electronics and troubleshooting fundamentals.

Lectures cover an overview of circuit design, components, tools and repair techniques.

Demonstrations and discussion will cover a wide scope of repairs.

Suggested tools and materials for an emergency repair kit will be outlined.


  • Circuitry
  • Block diagram
  • Power supply function
  • Signal flow
  • Tools and equipment
  • Preliminary testing
  • Digital voltmeter test functions
  • Repair vs. restoration
  • Emergency repair preparedness
  • Safety
Tube Amp Repair II – Advanced Diagnostics and Modifications

Students will learn how to modify tube amps for optimal sound and get the most out of advanced diagnostic tools and equipment.

Lectures cover tube theory, tube audio circuits, and repair and modification techniques.

Demonstrations cover advanced diagnostic tools, testing and repair techniques and circuit modifications to achieve specific sound characteristics.

Q & A – Student questions and discussion covering further study and technician careers


  • Advanced schematic diagrams
  • Deep signal flow
  • Advanced testing
  • Oscilloscope functions
  • Tone modifications
  • Decibel meter test functions
  • Repair vs. restoration
  • Pro audio interfacing