Physics | Sound and WavesPAIR OF TUNING FORK
PH 11020
PAIR OF TUNING FORK

The forks have threaded shanks and will screw in the box tops. Frequency of each is A (426). One fork is fitted with a sliding mass to alter its frequency. On sounding both forks, a clear 'beat' is produced. Supplied with one hammer. Size of box 180 x 88 x 53 mm approx.