"ScottW" wrote in message
news:0l3xd.128$iD.117@fed1read05...

"Robert Morein" wrote in message
...

The metal on the binding post should match the metal of the connector.
Mate gold spades to gold binding posts.

Why?

ScottW

Because when identical metals are pressed together, they form microscopic
areas of attachment known as "pressure welds".
This provides the best possible conductivity.
This does not happen with surfaces that are not made of the same material.
Hence, gold on one surface is a complete waste, and worse than tin-on-tin,
or nickel-on-nickel.
Additionally, gold surfaces against non-gold are damaged by mechanical shear
and electromigration.
Gold is very soft, and survives only when pressed up against another gold
surface.