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Mechanical filter — Figure 1. A mechanical filter made by the Kokusai Electric Company intended for selecting the narrow 2 kHz bandwidth signals in SSB radio receivers. It operates at 455 kHz, a common IF for these receivers, and is dimensioned 45×15×15 mm ( … Wikipedia
MV Joyita — was a merchant vessel from which 25 passengers and crew mysteriously disappeared in the South Pacific in 1955. Vessel description and historyVessel constructionThe 69 foot (21 m) wooden ship was built in 1931 as a luxury yacht by the Wilmington… … Wikipedia

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