ESAW Electrically Maintained Tuning Fork (SW-2130)On sturdy base, can be used in horizontal or vertical position. Prong size is 300 x 25 x 10 mm. Actuated by an electromagnet between the prongs, works with 6 V D.C. Amplitude of vibration can be varied by adjusting the position of the electromagnet.

ESAW Twin Tone Bar Set (SW-2139)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.

SW-1875 - ESAW Tuning Fork Wave Recorder Apparatus to show the waves of a tuning fork, change of waves with the frequency of tuning fork. Also demonstrates characteristics of waves and sound visually. It consists of three different types of tuning forks, a marker, and a paper roll. Mounted on a w...

ESAW String Vibration (SW-2148)A sturdy metal frame with a DC motor and an eccentric shaft for creating the vibrations. One end of thread is connected at the pointed strip and another via weight and pulley. Vibration can either be adjusted by varying the applied voltage or the weight

ESAW Powell's Wave Machine (SW-2157)For demonstrating the movement of progressive transverse waves. Comprises a number of circular discs mounted equidistant from each others on a horizontal shaft in gradually varying degrees of eccentricity, with each disc having a vertical rod of same length sup...

ESAW Wave Apparatus (SW-2166)For demonstrating both longitudinal as well as transverse motion simultaneously. Construction similar to Cat No. 1120060, but of the total rods supported on eccentric discs, about 2/3rd rods straight and 1/3rd rods bent in L-shape, with the L-shaped rods sliding into ...

ESAW Plastic Wave Apparatus (SW-2175)Completely made of plastic with basic design and functionality similar to Cat No. 1120080. The plastic highlighted tips provide easy observation of wave motion. The rotating handle is fitted with a circular scale marked in degrees to indicate the rotation.

ESAW Wave Form Long Helix (SW-2184)Steel wire close-wound helix of about 19mm diameter and closed length of about 3m extending to approx. 9m. With looped ends. Useful for demonstrating wave motion.

ESAW Wave Form Slinky Helix (SW-2193)For demonstrating wave motion. Helical coil of flat section, tempered steel wire.SW-2193            Coil diameter 7.5cm, closed length 10cmSW-2193            Coil diameter 5cm, closed length 7.5cm