Siren Wheel

Siren Wheel A toothed wheel with a driven handle fitted on a metallic base engaged with a plastic strip. Rotation of the wheel gives a loud rattle sound. The frequency of sound generated by this instrument can be easily calculated by just multiplying No. of teeth on the wheel wi…

Siren Wheel

A toothed wheel with a driven handle fitted on a metallic base engaged with a plastic strip. Rotation of the wheel gives a loud rattle sound. The frequency of sound generated by this instrument can be easily calculated by just multiplying No. of teeth on the wheel with the No.