how do you get the luster back to the black radio knob's like the one's on
collin's radio's and other thanks del k9fcm

You may have to clean them first.
I use a Plexi-glass cleaner first, then I use a liquid wax & buff'em up.
If you want to use an Armor-all type product, buy one that is ALL chemical not
90% water like armor-all.
GL..
Careful with collins s-line knobs. I think they have a clear coating on them &
too harsh a cleaner will "jazz" this up.
GL..
Thanks es 73...........RICH-WA2RQY
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