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Random Noise Generator Type 1390-B (1)
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Date of production: ca. 1965
This picture shows the Random Noise Generator Type 1390-B produced by the General Radio Company in West Concord, MA.
This photograph was taken by Nikita Braguinski at the Audio Communication Group, Technische Universität Berlin, in May 2018.
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From the series
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Original from
Audio Communication Group, Technische Universität Berlin
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CC-BY Users may share and adapt this material, even for commercial purposes. Appropriate credit must be given and an indication included if changes were made
Digitization by
Nikita Braguinski