Here is a unique addition to our Tuning Fork Family… an ADJUSTABLE Tuning Fork!! This lightweight, yet sturdy aluminum fork has adjustable masses that can be moved up and down to change the pitch. The effective length of either of the tongs on the fork can be changed using small weights with a clamp to obtain different resonant frequencies. Includes a 128/240 Hz tuning fork and two adjustable masses. Conveniently labeled notches allows notes from C to B” to be produced.

The individual notes are as follows:

• C 128
• D 144
• E 160
• F 170.7
• G 192
• A 213.3
• B 240 (the frequency of the fork when the weights are in the bottom position.

Measures 8 inches long, handle is 1 3/4″,1 1/2 inches wide – including knobs on adjustable weights – and 1 1/4 inches thick including weights.