hi,
Place a sheet of aluminum foil in bottom
of glass dish or pie plate, etc.
fill with white vinegar and add a tsp of table salt.
stir it up and place the connectors on top of the
foil and keep them submerged under the vinegar salt solution.
The tarnish will migrate off the silver and onto the
aluminum foil. no brushing or scrubbing necessary.
The plating is not damaged in any way.
It's science but it works like magic.
73 james ke4drn
james27613 KE4DRN