Amp Camp: Tube Amp Making + Repair 1


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This three day course offers a unique hands on immersive making and learning experience.  The class combines a tube amp electronics construction workshop with a tube amp repair seminar.

Student will enjoy bringing home their own hand wired tube amplifier with the knowledge and confidence to service it.

No prior shop or electronics experience is necessary.

Students will make either a Tweed Guitar Tube amp, or a Hi-Fi  Stereo Tube Amplifier in the Tube Amp Making Workshop. By constructing an tube amplifier, students will begin to develop the skills necessary to troubleshoot and repair amplifiers.

They will follow the Tube Amp Making course with the Tube Amp Repair 1 seminar.

  • Fee

    Fee includes tuition $1180, plus kit cost
    Tuition fee includes instruction and reference materials, the use of a dedicated workbench with specialized tools and project guidance.

    All the shop supplies necessary to complete the project are included.

  • Materials and Supplies

    Kit cost is according to kit choice, includes special tube upgrades, shipping and taxes, and is an additional charge.

  • Instructors

    Ian Schneller read bio

  • Refund Policy

    Registrations are non refundable. A tuition fee may only be applied to other CSGM classes with written notice of cancellation prior to class.

  • Location

    All workshops are held at Specimen located at 1240 N. Homan Ave. in Chicago, Illinois. view map

  • Registration

    Register online or call 773.489.4830 to enroll with a credit card.  You are also welcome to come by the shop and enroll using cash, credit card or a personal check.  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.

Guitar Tube Amp Making
Students will observe the stages of the building and wiring process and then carry out the work on their own amps under the supervision of the instructor. Students will obtain a foundational understanding of the way a vintage tube instrument amplifier functions, stage by stage, and learn the craft of point-to-point wiring and how to modify a circuit to shape its tone by changing component values.

Hi-Fi Stereo Tube Amplifier Making
This Stereo Hi-Fi circuit is wired point-to-point but differs from the circuits featured in instrument tube amp making in that it uses individual turrets wherever necessary. The amp circuit constructed in this workshop is derived from the classic single-ended designs that began in the 1930s.  The design is organic and elegant, but most of all timeless, bulletproof, and great sounding! You can plug just about anything into this amp’s input with good results. This circuit features:

  • 8 watts per channel
  • 1 GZ34 rectifier tube
  • 2 6SL7 preamp tubes
  • 2 EL34 power tubes (in this circuit these tubes are interchangeable with KT88s, 6550s, KT66s, KT90s, EL37s, 350Bs and other octal based output tubes with no modifications)

Tube Amp Diagnostics & Repair
Lecture, demonstrations and Q & A.

Options for the scope of repairs are disclosed and an emergency repair kit of tools is recommended.

Options discussions will range from immediate repairs to complete restoration to avoid further issues


Topics include:

  • Circuits
  • Block diagram
  • Power supply
  • Signal flow
  • Testing
  • Emergency repair
  • Repair vs. restoration
  • Tools and Safety