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The Sound Spectra of Musical Instruments

An article entitled "The Sound Spectra of Musical Instruments", by Edwin Meyer, translated and transcribed by D. H. Thomas. From Zeitschrift fur Technische Physik, Vol. 12, p.606, 1931.

The Superpiano

An article entitled "The Superpiano", by Emerich Spielmann, translated and transcribed by D. H. Thomas. From Das Funkmagazin p.17, Jan. 1933.

Apr

An article entitled "Apr

Givelet's Electric Organ

An article entitled "Givelet's Electric Organ", transcribed by D. H. Thomas. From Elektrotechnische Zeitschrift, Vol. 54, p. 402, 1933.

The Hammond Organ

An article entitled "The Hammond Organ", by Sir James Barrett, K.B.E., transcribed by D. H. Thomas. From Nature, Vol. 138, p. 297, 1935.

Patents and patent-related notes.

This series contains patent specifications and patent-related notes kept by D. H. Thomas, which were relevant to his research into the development of electronic instruments, and keyboard instruments in particular.

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