Thought amplifier used by the aliens Korob and Sylvia. The
transmuter could convert their thoughts into physical objects or
convincing illusions. With the transmuter, Korob and Sylvia
disguised themselves as humanoids and captured various crew
members from the U.S.S. Enterprise NCC-1701. In effecting
escape, Captain Kirk destroyed the transmuter, which also
resulting in the deaths of Korob and Sylvia.