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In telecommunication, the term chadless tape has the following meanings:
- Punched tape that has been punched in such a way that chad is not formed, or
- 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.
Chadless tape was used in mobile teletype installations, such as military field communications, to help maintain a clean workplace.
Source: from Federal Standard 1037C in support of MIL-STD-188
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