Sliding weights on each prong of the tuning fork can be adjusted to deliver tones at C-128, D-144, E-160, F-170.7, G-192, A-213.3, and B-240 frequencies.
The high-quality tuning fork set covers the octave from middle to high C. It consists of one each of 261.6C, 293.7D, 329.6E, 349.2F, 392G, 440A, 493.9B and 523.2. Set of eight, with an activator.
The pair of tuning forks in this kit is designed to demonstrate the resonance of sound and other acoustic phenomena. The kit includes two identical tuning forks, a rubber striker, a piece of clay to varying the frequency, and a plastic dish for sound wave observation. Ages 7+.
Tuning Fork Activator is used as a surface to gently strike the tuning fork to activate vibrations. Rubber activator is tapered so the bottom is wider for stability. Made of solid rubber.
Supertek’s Tuning Fork and Striker set features a high-quality aluminum tuning fork of 512Hz and a 7" striker. The Striker has a wooden handle and rubber ball at the top. Packaged together in a plastic bag. Grades 3+
Apparatus to show the waves of a tuning fork, the change of waves with the frequency of the tuning fork. Also demonstrates the characteristics of waves and sound visually. It consists of three different types of tuning forks, a marker, and a paper role. Mounted on the wooden stand. With instructions. Size: 20.87" L x 6.3" W x 22.8" H…
Set of two resonance boxes with extra heavy aluminium forks having double the duration of audible vibration than the ordinary forks. One fork is weighted and can be adjusted over range of about 30 Hz. forks are of different lengths 19.4 cm and 17.5 cm approx.
To demonstrate resonance, sympathetic vibrations, and beat phenomenon. The two precision-made bars are mounted on a single solid resonance cavity. The cavity has two chambers with one bar tuned to 440Hz. The other to 441Hz. Includes: hammer and instructions. Size: 13.78" L x 7" W x 4.13" H Grades 6+