This is a Neve 3416 Line Amplifier module from a Neve Broadcast desk.  It's being sold for parts as someone removed the input transformer, everything else is there, including the Marin Air T. 1751 output transformer and Neve B640, Issue 2 amp card.  These run on 24 VDC power.  Great for a console spare or a Neve preamp project.  Sold As Is, for parts.  Thanks for looking.