Cleaning silver faceplates?
I did a search on this subject, but didnt' find anything. Around the on/off buttons on my silver equipment (mainly my Classe amps), a "brownish" residue has built up over time, most likely smudges of dirt/oil from my fingertips. Can someone recommend a cleaning solution and/or method for this? BTW, I'm asking here first before even trying something as simple as water and elbow grease. Thanks.
Andy