Shortly after Amiable Technologies merged with Scanvec (to become Scanvec-Amiable and later SAi) they converted most (but not all) the proprietary .SCF font package files to True Type Fonts. We still have a couple of the Flexi Fonts 2000 (as in year 2000) CD-ROM discs in our shop. A few weights of Triumvirate were included. But the fonts were called "CG Triumvirate." The kerning of the TTF files is not the same as that of the old CASmate .SCF fonts. Not that it matters too much anyway. Triumvirate was the Compugraphic type foundry's knock-off of Helvetica. It goes right along with other Helvetica clones such as Bitstream's Swiss 721 or URW's Nimbus Sans.
One of the big hazards with these Helvetica clones is they're not 100% interchangeable. There are subtle, even tiny differences between Helvetica and the various clones like Triumvirate. Add to that the legit versions of Helvetica: there's the original 1950's cut, the 1980's "Neue" Helvetica cuts and this year we have Helvetica Now adding a major new wrinkle to the situation. The hazard I speak of occurs when a sign project involves replacing something like a damaged channel letter face busted in a hail storm or something. Generally you want to have the original sign design files to get an exact fit. Too many sign designers can't avoid the urge to squeeze or stretch the letters rather than leaving them in their normal proportions.