Quick Answer: The Tuning Forks With Hammer are a pair of nickel plated A (440 Hz) forks on individual wooden boxes for demonstrating beat frequencies, with one fork carrying an adjustable mass.
Last updated: October 2026
Key Features
Two nickel plated forks, nominal A (440 Hz)
Each fork mounted on its own wooden box
One fork has an adjustable mass for shifting its frequency
Comes with mallet and bases
Forks are often not exactly 440 Hz, usually 436 to 444 Hz
Technical Specifications
Specification
Value
Forks
Two, nickel plated
Nominal frequency
440 Hz (A)
Usual actual frequency
436-444 Hz
Mounting
Individual wooden boxes
About This Product
Sounding both forks together produces a clearly audible beat, its rate depending on the difference in frequency between the forks. Moving the adjustable mass shifts one fork away from the nominal 440 Hz, so the pair can be set to create beats or to match each other. They are also used to hear dissonance.
Frequently Asked Questions
Q1. Are the forks exactly 440 Hz? Not always. They are designed for beat experiments and are often not exactly 440 Hz, usually 436 to 444 Hz. The adjustable fork can be set to create beats or to match the other fork.
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