I have a 37 year old H/K Citation 11 Pre-amp. The sliding audio
equalizers, volume and balance controls are silicone loaded. There is
a warning label inside the unit, that says because they are silicone
loaded, not to use commercial cleaners on them. Can I use DeoxIT D5
to clean them? After 37 years, how much silicone is left in these?
Any other suggestions?