Rubens’ Tube, 1m without Amplifier

Intended for teacher demonstrations only, the Philip Harris Rubens’ Tube is a 1 metre long Aluminium tube with a row of small holes drilled along the top and 20W loudspeaker mounted at one end. Full instructions included.

Length: 1m
Speaker: 20W, 8Ω
Users will need a gas source (Natural or LPG) and a power signal generator to run the speaker.
Size: 1060 x 180 x 150mm.
Reasons to Love
A highly visual demonstration of wave motion.
Learning Outcomes
Key Stage 4 Physics – Wave Motion: Transverse and longitudinal waves. Describe wave motion in terms of the wavelength and frequency of waves , explaining how these may be measured, that they are transverse, that it is the wave and not the flame itself that travels; explain the relationship between frequency and wavelength.
GCSE Required Practical: Waves
Top Tips
A Rubens Tube should only be operated by a teacher or technician.  It is not suitable for student use.
On delivery and before operation, the air holes along the tube should be checked for any obstruction (e.g. dust from transportation/storage).  Any blockages can be removed using a thin piece of wire.