You could start with Naphtha (aka Ronsinol). For mechanical assemblies, you could try Breakfree CLP (designed for guns). I don't know about the sound boxes. ----- Original Message ----- From: <[log in to unmask]> To: <[log in to unmask] >I picked up a large box of phono parts (Victrola era), with numerous motors > on boards, handles, and arms, many with sound boxes attached. > The arms are slightly pitted, and coated with ages of junk. What do our > members use to clean up these arms? > > Don Chichester