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Tone variator from Max Kohl Catalogue, rack and pinion design.png

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Tone_variator_from_Max_Kohl_Catalogue,_rack_and_pinion_design.png(141 × 382 pixels, file size: 23 KB, MIME type: image/png)

Tone variator in which the bottom of the resonator is not displaced by a spiral, but by rack and pinion; in these, an excentrically-operated pointer is used to indicate the frequency on the scale.

Source: Kohl, Max. Physical Apparatus / Vol. II. Apparatus and Supplies for General Use. Introduction to Physics. Mechanics. Wave Theory. Acoustics. Optics. Heat. Meteorology. Cosmology. Chemnitz, Germany. p 446.


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current00:49, November 5, 2007Thumbnail for version as of 00:49, November 5, 2007141 × 382 (23 KB)PhloxBot (Talk | contribs)Tone variator in which the bottom of the resonator is not displaced by a spiral, but by rack and pinion; in these, an excentrically-operated pointer is used to indicate the frequency on the scale. Source: Kohl, Max. ''Physical Apparatus'' / Vol. II.

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