reproducer

noun4

1. •
   One who reproduces something.

   • Local musicians were not just passive reproducers of the tradition. — 2000
2. •
   In a phonograph, a device containing a sounding diaphragm and the needle or stylus that traverses the moving record, for reproducing the sound.
3. •
   In a manograph, a device for reproducing the engine stroke on a reduced scale.
4. •
   A series of steps which reproduce a bug or other condition of interest.