cleaning your spade connectors

For speaker cable spade connectors I would avoid using any wire brush to remove tarnish since this will always leave scratched surface and remove silver plating.

Instead dip in some Tarn-X available almost any home improvement center which will instantly remove tarnish, wipe clean then follow with your favorite contact enhancer like Kontak or Caig Pro Gold etc.

BTW I use this method on my own AP speaker cables with massive T1 silver spades.

Tony007 is correct with his cautions using Tarn-X/rinsing off etc. Therefore to avoid any possible problems I won't use it for silver spade cleaning in the future.

I have used Caig Deoxit in the past to clean silver spades and with some effort it works pretty good.