How I repaired an 035Ti. Hope this is helpful.
Hopefully the pictures will tell the story. One of the 035Tis in my 4412s stopped singing and tested open. So I took it apart and found the terminal leads had broken while the voice coil itself was still fine. So I took single strands of speaker wire and soldered them in place. Fixed. I hope this helps anyone now or in the future with an open 035Ti and likely other tweeters too.
Opening it up: two broken leads.
http://imgur.com/emARDTUl.jpg
Ready to operate.
http://imgur.com/MpAPbYul.jpg
Grab a strand.
http://imgur.com/YCx3FZfl.jpg
Add some solder.
http://imgur.com/xBXd6NAl.jpg
In the slot and soldered to what remains of the original lead.
http://imgur.com/5qhuortl.jpg
http://imgur.com/DuAdm1Vl.jpg
Got creative with the other side to get more solder on it. Ugly but works.
http://imgur.com/UbCIM0Jl.jpg
Glued them both back into the channels.
http://imgur.com/pnWFuVtl.jpg
Going back together.
http://imgur.com/VX5pZmhl.jpg
http://imgur.com/nxDOaMml.jpg
Cont ...