[TowerTalk] cleaning relay contacts ?

[Jim Brown]

On 2/17/2026 6:40 AM, Jamie WW3S via TowerTalk wrote:
> I seem to recall someone mentioning a way to clean relay contacts by applying voltage ? Looking for a way to try to clean up some sealed relays in a 2x6 antenna switch

60 years ago, not long out of EE school, I had a job driving around 
Chicago fixing audio and video systems. One of the most used tool in my 
box was a "contact burnishing tool." It's a thin strip of metal with 
both sides finely abrasive. I still have two of them.

To clean contacts on my paddle, I've used a piece of paper.

73, Jim K9YC