Wittner No. 922 Tuning Fork (Square) with Case (A=440Hz)

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1. KEY FEATURES: - Nickel-plated finish, made in Germany - Comes in original case.

2. PRODUCT DESCRIPTION: To use it, pinch the handle of the tuning fork and tap the tip lightly to make it vibrate. While it is vibrating, you can hear the sound by bringing the tip of the handle close to a hard object such as the side of a piano or near your ear. Example: The sound emitted by the A tuning fork is the A sound, so it is the A sound of the A string open string used in many stringed instruments. Note that the A note on the tuning fork is two octaves higher than the open note (A note) on the 5th string on a guitar, so you need to match it with the harmonics on the 5th string and 5th fret. Although it takes some getting used to, tuning with a tuning fork is a good way to train your ears, and in recent years it has become very popular as a healing item. A = 440 was established at an international conference held in London in 1939, and subsequently became an international standard in 1953 and has not been changed until now (2019). (Usually written as "A=440 Hz" or "A440") However, there are many orchestras and brass bands that tune at a pitch of A=442 or higher, and A=442 is especially standardized in classical music. TV, radio, 117, and other time signals also sound 440Hz three times, followed by 880Hz (one octave higher than 440Hz).

3. PRODUCT DIMENSIONS & WEIGHT: - Weight: 0.041 kg - Dimensions: 15.0 x 3.8 x 0.4 cm

4. SPECIFICATIONS: - Brand: WITTNER - Manufacturer: Wittner