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Tube Amp Repairs


Specimen Products also specializes in tube amplifier repair. With our vast supply of new and vintage parts, we can meet the most esoteric of requests.

We work with professional players, touring bands, local clubs as well as the player who is just starting out. To date, we have repaired thousands of guitars, tube amps, and other stringed instruments. We also sell many of the most common tubes and amp parts or, in some cases, can special order items for our customers.

Ian Schneller, owner of Specimen and principle amp repair tech, has been manufacturing his own line of custom tube amps and tweed tube amps for more than 20 years. He has extensive knowledge of tube amps, with a particular affinity for early Fenders, Ampegs, and Magnatones. Ian also teaches the Tube Amp Building Workshop at the Chicago School of Guitar Making.

Tube amplifier repair services include:

  • Clean and Check Over
  • Amp Overhauls
  • Tube Installation
  • Biasing
  • Modifications
  • Reverb Repair

Some of the brands we service:

  • Fender
  • Gibson
  • Marshall
  • Ampeg
  • Magnatone
  • Orange
  • Vox
  • Top Hat
  • Dr. Z
  • Victoria

Visit our Repair Journal to see images and learn more about some of the interesting repair work that has come through the shop.


Get a Quote

Specimen is a full-service repair shop. We specialize in the repair of all stringed instruments and tube amps.

If you would like a quote for repair work, please complete the form below.

You are also welcome to call us and discuss the repair and any questions you may have at 773.489.4830.


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Repair Description