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Nine plates and six bars for Wheatstone's and Koenig's experiments in the formation of nodal lines
(Neuf plaques et six lames pour les expériences de Wheatstone et de Koenig sur la formation des lignes nodales)
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1889 |
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taken from: Koenig, Rudolph. 1889. Catalogue des Appareils d'Acoustique construits par Rudolph Koenig.
(p. 0065, fig. 93) |
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Rotary mirror and manometric flame according to Koenig
(Rotirender Spiegel und manometrische Flamme nach Koenig)
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1891 |
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taken from: Langendorff, Oskar. 1891. Physiologische Graphik: Ein Leitfaden der in der Physiologie gebräuchlichen Registrirmethoden.
(p. 0083, fig. 63) |
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Koenig's tuning fork for interrupting electric currents, based on mercury contact according to Pfaundler
(Koenig'sche Unterbrechungs-Stimmgabel mit Quecksilber-Contact nach Pfaundler)
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1891 |
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taken from: Langendorff, Oskar. 1891. Physiologische Graphik: Ein Leitfaden der in der Physiologie gebräuchlichen Registrirmethoden.
(p. 0136, fig. 107) |
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Koenig's tuning fork for interrupting electric currents, based on dry contact
(Koenig'sche Unterbrechungsgabel mit trockenem Contact)
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1891 |
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taken from: Langendorff, Oskar. 1891. Physiologische Graphik: Ein Leitfaden der in der Physiologie gebräuchlichen Registrirmethoden.
(p. 0137, fig. 108) |
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cylinder for Koenig's phonautograph
(Phonautengraphencylinder von Koenig)
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1891 |
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taken from: Langendorff, Oskar. 1891. Physiologische Graphik: Ein Leitfaden der in der Physiologie gebräuchlichen Registrirmethoden.
(p. 0030, fig. 16) |
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Set of twelve tuning-forks, with resonance-boxes, Ut2 Ut3, Mi3, Sol3, La3, Ut4, Mi4, Sol4, seventh harmonic of Ut2, Ut5, Re5, Mi5. By Koenig, Paris
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1892 |
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taken from: Anonymous. 1892. Harvard Psychological Laboratory in Dane Hall: Interior of a Laboratory Room. Photograph.
(p. 0002, fig. M45) |
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Series of ten resonators. After Helmholtz, by Koenig, Paris
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1892 |
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taken from: Anonymous. 1892. Harvard Psychological Laboratory in Dane Hall: Interior of a Laboratory Room. Photograph.
(p. 0002, fig. M49) |
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Five tuning-forks, with resonators, tuned to the characteristic notes of the vowels. After Helmholtz, by Koenig, Paris
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1892 |
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taken from: Anonymous. 1892. Harvard Psychological Laboratory in Dane Hall: Interior of a Laboratory Room. Photograph.
(p. 0002, fig. M47) |
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Electromagnetic Tuning fork
(Electrical tuning-fork of one hundred vibrations. By Koenig, Paris)
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1892 |
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taken from: [Ruf, C.]. 1892. Münsterberg's Laboratory in Freiburg, Germany. Photograph.
(p. 0001, fig. 8) |
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One extra Ut4 tuning-fork and one Ut4 + four vibrations, with resonance-boxes. By Koenig, Paris
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1892 |
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taken from: Anonymous. 1892. Harvard Psychological Laboratory in Dane Hall: Interior of a Laboratory Room. Photograph.
(p. 0002, fig. M46) |
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