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Tube Amp Diagnostics & Repair I + II ~ Combined!

Two intensive seminars offer a deep understanding of all the information necessary to delve into the world of tube amp diagnostics, repairs and modifications from the standpoint of the amp repair professional. Learn advanced techniques and trade secrets from a master amp technician. No prior workshop or electronics experience is necessary. More than the keys to a vocational opportunity – here’s a chance to learn from one of the best in the business. Questions? Please call us! 773-489-4830

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.

Day 1. Tube Amp Diagnostics & Repair I – Fundamentals

This seminar offers a broad understanding and the fundamentals of tube amp circuitry and troubleshooting.  Learn closely guarded trade secrets through lectures and demonstrations that range from emergency repairs to full restoration.  Options for the scope of repairs are disclosed.  Suggested tools and materials for an emergency repair kit are outlined.

Day 2. Tube Amp Diagnostics & Repair II – Mods & Advanced Techniques

This seminar offers deep understanding of tube amp troubleshooting, repair techniques and modifications. This course focuses on tube theory; to determine wattage, tube parameters, and will teach you how to get the most out of diagnostic equipment. Fine details of sound will be demonstrated, explained and discussed. Students will learn to use an oscilloscope in conjunction with a signal generator in addition to decibel meters and frequency counters to modify tone. Modifications, advanced implementation of effects systems and pro audio interfacing will round out the curriculum.


Diagnostics I

  • 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

Diagnostics II


  • Schematic diagrams
  • Signal flow analysis
  • Advanced testing with diagnostic tools
  • Tone modifications
  • Repair vs. restoration
  • Pro audio interfacing
  • Emergency preparedness


Tuition includes lectures, demonstrations, Q and A, catered lunch and refreshments each day.


Kye Kennedy 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. His extraordinary amp diagnostics curriculum is well thought out and lucid. Kye teaches Amp Diagnostics exclusively at the Chicago School of Guitar Making.

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 Sept 30 & Oct 1
Sat & Sun, 10 am - 5 pm
$1,289.00 (USD)
Expired Nov 11 & 12
Sat & Sun, 10 am - 5 pm
$1,289.00 (USD)
-$100.00 (USD) Combined Discount
Expired April 21 & 22
Sat & Sun, 10 am - 5 pm
$1,369.00 (USD)
-$100.00 (USD) Combined Discount
August 20 & 21
Mon & Tues 10 am - 5 pm
$1,369.00 (USD)
-$100.00 (USD) Combined 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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