[Phono-L] Repairing a Columbia one piece aluminum arm

I'm restoring a Columbia type BN outside horn phonograph. This machine has a one piece aluminum horn and an analyzing reproducer. The arm appears to have been plated originally. I assumed that I could buff the aluminum to a nice shine. My problem is that the surface is quite pitted and when

[Phono-L] Repairing a Columbia one piece aluminum arm

hi why dont you just get it replaced it is not that expensive and there are many business that will do that with just nickel In a message dated 7/20/2008 1:50:07 P.M. Eastern Daylight Time, rvuill at comcast.net writes: I'm restoring a Columbia type BN outside horn phonograph. This machi