Weights, sizes and frequencies

Finding ways to relate the weight, size (generally mouth diameter) and nominal frequency of bells is useful, because it allows values to be estimated what data is not available. Some work on this was done by AndrĂ© Lehr, as reported in his 1986 paper. Other models have been developed and refined since by bellfounders and […]

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Anomalies in the tuning of Gillett & Johnston bells

Analysis of recordings of three Gillett & Johnson carillons from the 1920s and 1930s, and comparison against the original tuning book figures from the Gillett & Johnston archive, suggests that there is a surprising variation of up to a fifth of a semitone in the frequencies of the tuning forks used to measure and tune the partial frequencies. […]

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