Resonance Tube

Item # 97-7460

Regular price $245.00
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Buy 6 and pay $220.00 each!

The Resonance Tube apparatus is an affordable and easy-to-set-up way to study open- and closed-pipe resonance. Using the closed-end plunger, you can add cork or polystyrene dust to visualize resonant wave forms generated in the tube, known as a Kundt's tube.

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Additional Details

Ideal for all resonance investigations in air columns!

The Resonance Tube features a high-powered sound wave generator unit, which is plugged into one end. This generator operates with a standard laboratory signal generator, driving it to detect various resonance modes through increased loudness of the note as the frequency is adjusted. Users can study an open pipe or utilize a variable-length closed pipe by inserting the provided piston assembly. Kundt’s tube investigations become feasible by employing a higher amplitude on the generator. Fine cork or polystyrene dust distributed throughout the tube gathers at the nodes during resonance, simplifying the measurement of wavelengths. Preferably, a closed tube is used to obtain a good response and reduce sound levels in the laboratory while still producing a measurable effect.
The apparatus comes complete with two supports for the tube, sound wave generator, resonance tube, closing bung, and full instructions.

Requires a signal generator.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to

Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.


What’s Included

  • 1 x Resonance Tube 
  • 1 x Plunger 
  • 1 x Sounder unit 
  • 2 x Supports

Features & Specs

  • Dimensions: 1100 × 50mm dia. 
  • Weight: 400g