The Deoxit cleaner and preservative is the ticket. It's superb on electrical connectiond from MC phono leads to speaker terminals.
Noalox is a compound made for copper-copper, copper-aluminum, and aluminum-aluminum connections. It consists of tiny zinc spores in an evaporative carrier. When compressed the zinc spores bite into the metal connections making a gas tight seal when tightened correctly. After a while, the carrier evaporates, leaving the gas tight connection.
I've run some tests on these connections and looked at the di/dt rate of change (the rate of current change versus time) connection versus non Noalox di/dt connection. Noalox returned more than a 10:1 improvement in current rise time!
I've been meaning to do some accelerated life tests on Noalox connections - - - Comparing non Noalox versus Nolox in an indoor, outdoor, and salt air envirioments. Now this discussion got me thinking again, so I'll set that up in the next few weeks. I'll start a new thread with the results.
BTW, just to get folks thinking outside the box, for high voltage connections, in the 1 to 100 KV applications, an insulating dielectric grease is used in the connection to prevent arcing. Surprisingly, over time, there is less contact resistance with the insulating grease than conductive grease! I'm not suggesting we use insulating grease for speakers! But the point is, for the right application, the right contact grease is a big deal.
