Siren disc - Seebeck
PIRA: Unknown
A disc is made with several concentric circles of uniformly spaced holes and is mounted on the axis of a shaft driven by a motor. Pressurized air is directed into the holes. Different musical notes are realized on different circles. The motor speed may also be varied to change the frequency.
Equipment | Storage |
---|---|
Siren disc mounted on a DC motor | 021-17C |
DC power supply | 021-16B |
flexible plastic tube with a metal nozzle. | 021-7C |