Quote Originally Posted by http://db.gamefaqs.com/console/psx/file/final_fantasy_ix_equipment_location.txt
Location: Given to you by Doctor Tot (Disc 3)
: Found in Alexandria (Disc 3/4)
: Found in the Chocograph 19, Cold Lagoon (Disc 3/4)
: Found in the Chocograph 16, Forgotten Plains (Disc 3/4)
: Synth at Daguerreo (Disc 3/4)
: Synth at the Black Mage Village (Disc 4)
: Synth at Hades Synthesis Shop (Disc 4)
You can't get them from enemies.