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Chadless tape

In telecommunication, the term chadless tape has the following meanings:

1. Punched tape that has been punched in such a way that chad is not formed.

2. A punched tape in which only partial perforation is performed so that the chad remains attached to the tape.

Note: The partial perforation is deliberate, and should not be confused with imperfect chadding.

Source: from Federal Standard 1037C and from MIL-STD-188