In this Instructable I’d like to share with you how to make a simple ribbon speaker with tinfoil as the ribbon diaphragm.
I started this project to see if a ribbon driver design like this could be a viable candidate for some ribbon headphones that i’m planning on building.
They can also be used for a high frequency driver instead of a regular tweeter.
The results that I received greatly exceeded my expectations.
Join me on my journey of creating these…
What is a ribbon speaker?
“These speakers are based on the same principle as cone speakers, i.e. the interaction of the magnetic field of a magnet with that of a wire through which the signal coming from the amp passes. However, the wire is not coiled around a cylinder extending from the diaphragm. The diaphragm itself is the signal conductor, taking the form of a rectangle held by two of its sides. The electronic circuit is drawn on top, trying to spread it as evenly as possible so that the magnetic force is uniform. The fact that the voice coil and the diaphragm are combined in a single piece makes the moving section lighter, thus avoiding, at least in theory, the displacement of the diaphragm. The conductor is spread across the entire surface, exercising a more homogeneous motive power than a voice coil which has to drive a cone at one end.” - audiofanzine.com”