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Sound and Science
A Database for Sources in the History of Acoustics
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Athlete at the German gymnastics and sports festival in Breslau, 1938
Picture courtesy of Deutsches Technikmuseum, Berlin, Historisches Archiv, Signature: AEG FS 044-3-40-1
images
Löschstrahler im Olympiastadion
Lautsprecher, ein sogenannter Löschstrahler, auf der Haupttribüne des Olympiastadions vor den Rundfunksprecherkabinen, 1936. Picture courtesy of Deutsches Technikmuseum, Berlin, Historisches Archiv, Signature: AEG FS 044-3-01, B 26791. [...]
images
Ribbon speakers installed on the roof of the Propylaea, Königsplatz
Large ribbon speakers on the roof of the Propylaea on the west side of Königsplatz, Munich, at the opening of the Deutsches Museum at its new [...]
images
First experimental Kunstkopf
First Berlin Kunstkopf mounted on transport case, circa 1969. From left: Ralf Kürer, holding the front of a KU80 and the front of a preproduction model, Henning [...]
artefacts
Advertisment: “The Delta Head”
texts
Measuring ear signals
Measuring ear signals with a probe microphone, circa 1972.
images
The “Originalkopf”
The “Originalkopf” microphone array, circa 1975.
artefacts
Kunstkopf
Kunstkopf by Peter Laws and Hans-Joachim Platte with Originalkopf microphone array, circa 1976.
artefacts
Patentanmeldung in USA
Patentanmeldung in USA, 1971: Verfahren zur hörrichtigen Aufnahme und Wiedergabe von Schallereignissen und Vorrichtung zu seiner Durchführung.
texts
Offenlegungsschrift 1927 401
Offenlegungsschrift 1927 401 des deutschen Patentamts, 1970: Verfahren zur hörrichtigen Aufnahme und Wiedergabe von Schallereignissen und Vorrichtung zu seiner Durchführung. [...]
texts
Offenlegungsschrift 2023 377
Offenlegungsschrift 2023 377 des deutschen Patentamts, 1971: Verfahren zur räumlichen Wiedergabe von Schallsignalen mittels Lautsprecher und Vorrichtung zu seiner Durchführung.
texts
Random Noise Generator Type 1390-B
This picture shows the Random Noise Generator Type 1390-B produced by the General Radio Company in West Concord, MA. A random noise generator is a device [...]
artefacts
Telefunken Pilzlautsprecher (Mushroom Speaker)
Loudspeaker housing of a Telefunken Pilzlautsprecher (Mushroom Speaker), which was a loudspeaker used for Nazi party rallies and other public events in Germany in the 1930s. [...]
artefacts
Sound Waves. International Telephone Journal (1900-1910)
series
The Bell System Technical Journal (1922-1983)
series
Rotfuchs-Protokoll + Korsaks (ab 18.4.64), 23.09.1963 – 24.04.1967
texts
Polarfüchse-Protokoll kleine Freianlage, 08.11.1956-01.04.1960
texts
Rotfuchs-Protokoll große + kleine Freianlage, 04.03.1959 – 21.09.1963 + Polarfuchs, 21.04.1960-05.09.1961
texts
Rotfuchs-Protokoll große Freianlage (+ kleine Freianlage), 12.07.1957 – 03.03.1959
texts
XIV. Fuchs-Protokoll, große Freianlage, 28.07.1956 – 11.07.1957
texts
XIII. Fuchs-Protokoll, 21.01.1956 – 27.07.1956
texts
XII. Fuchs-Protokoll Freianlage, 28.02.55 – 20.01.1956
texts
XI. Füchse Tagesprotokolle, 06.05.1955 – 17.08.1955
texts
X. Fuchs-Protokoll, 23.12.54 – 05.05.1955
texts
IX. Fuchs-Protokoll, 13.05.1954 – 22.12.1954
texts
VIII. Fuchs-Protokoll, 18.12.1953 – 12.05.1954
texts
VII. Fuchs-Protokoll, 31.08.1953 – 17.12.1953
texts
VI. Fuchs-Protokoll, 22.06.53 – 30.08.1953
texts
V. Fuchs-Protokoll (II), 11.03.53 – 22.06.1953
texts
IV: Fuchs-Protokoll, 01.01.1953 – 10.03.1953
texts
The Bell System Technical Journal
The Bell System Technical Journal was a periodical intended for sharing the scientific and engineering developments of the Bell System. It was published between 1922 and 1983. Collecting [...]
series
Bell Telephone News
Bell Telephone News was the regional telephone magazine published by The Bell Telephone Company of Chicago.
series
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