Tube Amp Diagnostics + Repair I – Fundamentals

The diagnostics and repair of a tube amp is perhaps equal parts science and art – there are very few places to learn it and few masters of the craft willing to divulge their hard won secrets.  This seminar offers the rare opportunity to learn the fundamentals of the art and craft of tube amp diagnostics and repair with a master amp technician. This class represents more than just the keys to a vocational opportunity – here’s a chance to learn from one of the best in the business.  Registrations are limited. Questions? Please call us 773-489-4830


Students will gain a broad understanding of tube amp circuitry and troubleshooting and learn closely guarded trade secrets. Lecture and demonstrations are supplemented with course materials. The demonstrations will range from emergency repairs to amp full restoration.  Options available for the scope of repairs are disclosed.  Suggested tools and materials for an emergency repair kit will be outlined.

Topics include:

  • Safety rules and how to safely discharge an amp
  • Preliminary testing
  • Digital voltmeter test functions
  • Breaking down the circuit into basic sections and the Scientific Method
  • Block diagram of the basic sections of an amplifier
  • The order of power supply function
  • The order of “signal flow” from wall outlet to tubes, and from guitar signal to speaker
  • Repair vs. restoration / emergency repair preparedness


Course fee: $695*   Tuition includes lecture/demonstrations with Q and A and the student will receive an Amp Diagnostics handbook with course information and reference materials. A catered lunch and refreshments are served and is included.

*An early registration discount may apply.


Kye Kennedy  

Kye brings decades of experience as an amp and stage technician working for an impressive roster of clientele in Nashville, the mid-south and around the globe. Kye  teaches Amp Diagnostics exclusively at the Chicago School of Guitar Making. His extraordinary amp diagnostics curriculum is well thought out and lucid.

Yair  Erez

Yair is a principle amp technician for Specimen Guitar Shop.  He builds custom tube amplifiers for Specimen Custom shop.  Yair studied tube amp diagnostics and repair under Kye Kennedy.


Register for any of our classes online, by phone or in person. Please note: Registrations are final and nonrefundable. 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.



Call us if you prefer to register over the phone with your credit card. We will send you a confirmation via email, or by snail mail if you prefer.


Select the class dates you wish to attend in Available Dates column. (See the upper right of the this page.)

Click ENROLL NOW. Enter the required information. Pay by clicking the Paypal button. (NOTE: It is NOT necessary to have a Paypal account to use their service.)

Choose your payment method. Complete the payment transaction. Your receipt and a confirmation will be emailed to you.


Come by the shop during business hours to enroll using cash, credit card, or a personal check.


Click Here for a list of nearby places to stay during seminars, along with transportation information.


The Chicago School of Guitar Making

ADDRESS   1240 N. Homan Ave. Chicago IL 60651

HOURS   Monday – Friday: 12 – 7 pm, and Saturday: 12 – 5


PHONE  773-489-4830



Choose Date
Expired July 28
Friday 10am - 5pm
$685.00 (USD)
-$50.00 (USD) Early Registration Discount
Expired September 30
Saturday 10am - 5pm
$695.00 (USD)
-$25.00 (USD) Early registration discount
November 11
Saturday 10am - 5pm
$695.00 (USD)
-$25.00 (USD) Early registration discount


All classes are held at Specimen located at 1240 N. Homan Ave. in Chicago, Illinois. Click here for a map

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