I found a ham selling a strip of very fine grit "sandpaper" he uses to clean silver Morse keys and relay contacts. I ordered some, but not tested yet. See lcox1944@gmail.com p.s., I do not know the f
Better hope those contacts are solid silver. I'd use a business card and some alcohol. Don W4DNR I found a ham selling a strip of very fine grit "sandpaper" he uses to clean silver Morse keys and rel
Not with the el cheapo BY relay contacts we have today. Might work with the old Telco relays (I have one of their relay burnishing tools), but I wouldn't try it on modern relays. I use bond paper wit
Sandpaper is a no no on relay contacts. It leaves minute sand particles imbedded in the contacts, especially silver plated ones. Use a metal contact file or good grade of extra fine Emory cloth. 73,
Someone told me once that strips of paper from a brown paper bag works good for cleaning relay contacts. 73 Tom W7WHY 73, Jim - w5ifp@gvtc.com _______________________________________________ Amps mai
it will be a few weeks until I get whatever this man sells, but it is very unlikely sandpaper coated with silica only. "EmEry" Emery on paper for fine grinding is mostly aluminum oxide for whatever g
Get a relay burnisher and forget paper....it can snag in the contacts and can insulate them. 73 David Harmon K6XYZ Sperry, OK it will be a few weeks until I get whatever this man sells, but it is ver
Crocus cloth is "I believe" jewelers rouge on a backing, but be careful. Some "cloth" is more abrasive than the abrasive. Bond paper with just enough deoxit to wet the paper. There have been several
Guys,please bear in mind that silver oxide is a good conductor, so ther's no need to touch it if if isn't burned or pitted. It's going to live much longer if you leave it alone! Alex 4Z5KS Sent from
Charly and the group, Using files/sandpaper/emery cloth/etc for contact cleaning is a bad idea for reasons already cited. Alcohol with paper/business cards works for light cleaning. If more vigorous
The Caig Laboratory chemicals - DeOxIt and Moving Contact Lubricant (MCL) - are also great for restoring conductivity of any contacts. I have some Jones plugs at my station entrance that go flakey ev
See comment embedded below. it will be a few weeks until I get whatever this man sells, but it is very unlikely sandpaper coated with silica only. "EmEry" Emery on paper for fine grinding is mostly a
Agree David, a "burnishing tool" is designed to clean various electrical contactors/relay contacts. I have a couple of them, and not sure, but would think that Grainger might carry them. 73, Pete N4K
Subject: Re: [Amps] Ham sells fine grit thing to clean contacts To: amps@contesting.com Date: Monday, August 17, 2015, 10:13 AM Agree David, a "burnishing tool" is designed to clean various electrica
I have had good luck with a ladies Sapphire fingernail file, very fine teeth and hard. Not too expensive. Bob -- == _______________________________________________ Amps mailing list Amps@contesting.c
Me, if a relay goes flaky I would replace it In terms of very fine abrasives, the stuff used to polish the ends of optical fiber is as slick as it gets. It is a polyester film coated with diamond dus
a business card and contact cleaner without oil will work for most dirt too. use a dry card for final polish. if very pitted a point file will get you a smooth surface again, however if the surface i