Heavy-duty electric tuning fork. An electromagnet drives the fork to a sustained frequency of 80Hz. The tuning fork assembly and binding posts are mounted on a stable cast-metal base.

To show relationships between frequency length tension and mass or learn about Meldes standing wave experiments with this heavy duty electric tuning fork. An electromagnet drives the fork to a sustained frequency of approx 80Hz.

One prong of the tuning fork has a captive knurled thumbscrew for performing Meldes experiment. Amplitude of the tuning fork vibrations is varied by means of a threaded adjustment screw. Universal binding posts are finished to provide electrical power from an external source of 2 to 6 volts DC.