Cleaning Silver Electrical Contacts

The switches have been working at least 2 years now since i scraped them with a pocket knife.

Cleaning silver electrical contacts. Proper physical cleaning involves drawing the hard glossy paper soaked in a mild cleaner and polishing. Then take the part of the brush that you dipped into your solution and insert it into the electrical contact slot or wipe the brush across the surface of the contact if it is exposed. That s a good question the answer is it depends there are a few different types of contacts and different contacts contain different amounts of silver. Each contact is a piece of electrically conductive material typically metal when a pair of contacts touch they can pass an electrical current with a certain contact resistance dependent on surface structure surface chemistry and contact time.

Get a contact cleaner kit. If there was any silver plating on my window switches it was burned through years ago. If your amplifier has an open frame relay wet a piece of solid glossy paper with cleaner wd40 is actually good for this and fit it between the closed contacts. At first try to remove dirt and debris without using the solution.

When the pair is. To clean electrical contacts you can also buy a kit. How to clean old oxidized black switch contacts due to silver oxide switches. Not a very sophisticated way and against all electronic rules by using water.

Before you start using it read the instructions carefully. Make sure that the item is unplugged before you start cleaning it. Insert the brush into the contact or wipe it off. Then when you use the solution the item must be unplugged.

With the kit usually you will get a few types of solution. Make sure that the brush is not dripping with the solution. Dirty or corroded contact. Also a flat contact cleaning tool is not going to get inside of the switch.

The only way to know exactly how much your contacts are worth is to have the melted and assayed. So how much are silver electrical contacts worth.