No @rankaudio, of the current Magnepans only the 3.7i, 20.7i, and 30.7 have ribbon tweeters. My Magneplanar Tympani T-IVa does as well, but has not been in production for decades. A lot of people---including Steve Guttenberg in his LRS review---incorrectly call all Maggies ribbon speakers (part of the blame for that rests with Magnepan. LRS is short for Little Ribbon Speaker, which it is NOT). Except for the ribbon tweeter in the above models, ALL Magnepan drivers are magnetic-planars, not ribbons. Magnetic-planars, electrostatics, and ribbons are all planars, but not all planars are ribbons.
A ribbon driver is by definition one in which the moving element (in the case of Maggies that is the mylar diaphram) is also the conductor. The Magnepan magnetic-planar drivers have wire conductors glued onto the mylar diaphram. That is NOT a ribbon.
A classic full-range ribbon loudspeaker is the no longer in production Apogee.