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Marquardt Series 6180



Series 6810 is a keyboard switch series from Marquardt. They reported that this series was manufactured from 1983 to 1995. These switches are very rare, with only two examples discovered to date:

The internals are not known, and may not resemble those of the successor series. The switches in the Tysso PKB-080 are clearly 6180 series, although they are not an exact match for the drawing of 6180.0101 provided by Marquardt.