IN 56 and friends

By Dave Kingston; posted May 30, 2004

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The glass insulator is the IN 56 referred to on ICON. There is a porcelain one that is very similar to it. The others also carry Army Signal Corps "IN" numbers; the top one is a radio strain (IN 68A), the left one is a feed-through bushing (IN 111), and the middle one is a screw eye (IN 104).