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compressed air gramophone

compressed air gramophone

gramophone that uses a pneumatic amplifier to amplify sound

en-GB/kəmˈpɹɛst ˈɛə ˈɡɹæməfəʊn/

en-US/kəmˈpɹɛst ˌeɪɹ ˈɡɹæməˌfoʊn/

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