"Jim F." <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Excellent !
Nothing is simple is it ? The $15 RS miniature Deoxit can came with an equally diminutive can of Deoxit "Gold" which is supposed to coat electrical contacts. I better coat the Jones pins and not plan to take the radio to the beach :-) Actually, I don't intend to use the thing much because I'm a die hard CW QRPer. I'm retired and totally enjoy building, trouble shooting, and fixing radios, even more than s-x. Thanks guys.. Jim / W1FMR NH --- Dennis Monticelli <[EMAIL PROTECTED]> wrote: > > "Dennis Monticelli" <[EMAIL PROTECTED]> > made an utterance to the drakelist gang > ---------------------------------------------------------------------- > You're probably right, Garey. The thin Cd plating > could well be gone > now. Ammonium nitrate can attack Cd. I am > certainly no chemist > either and I don't know what was in that brass > polish, but according > to a material book I have, intentional stripping of > Cd from mild steel > or Cu involves KCIO3 with Hydrochloric acid, both at > about 5%. > > It is also possible for a cadmium-based corrosive > layer to develop > slowly, build up thickness and in time become self > passivated, leaving > a layer of pure Cd underneath. It depends upon the > nature of the > contaminants in the air and the humidity what type > of film forms. > > To stay on the safe side, I would just keep those > pins well coated > with an anti-oxident. > > Dennis AE6C > > > On Jan 6, 2008 3:01 PM, Garey Barrell > <[EMAIL PROTECTED]> wrote: > > > > Garey Barrell <[EMAIL PROTECTED]> made an > utterance to the drakelist gang > > > ---------------------------------------------------------------------- > > Jim - > > > > The Jones connector pins are cadmium plated steel. > > > > I'm certainly no chemist, but I wonder if the > ammonia, (present in most > > brass polishes,) is what got the cadmium. It > sounds like you may be > > down to bare steel, which might be a problem in > future. > > > > Old steel chassis used to be cadmium plated, and > would grow the same > > crud. (Chemical term there.....) I think > cadmium plating is now among > > the millions of things that have been around > hundreds of years which > > have now been declared harmful to our health! :-) > > > > 73, Garey - K4OAH > > Glen Allen, VA > > > > > > > > > > > > Jim F. wrote: > > > "Jim F." <[EMAIL PROTECTED]> made an utterance > to the drakelist gang > > > > ---------------------------------------------------------------------- > > > Results of my experiments: > > > > > > Tried 3 things to clean the battleship gray, > tough as > > > nails, oxidation from Jones plug pins that the > 12VAC > > > filament voltage could not even penetrate. > > > > > > 1. Craig Deoxit (RS - very expensive) and didn't > work > > > > > > 2. Contact spray (RS) cleaner didn't work > > > > > > 3. MWW Brass Chrome & metal polish worked. > > > > > > Got it from the supermarket. It is a gray paste > > > that turns oxidation black when left on for a > while > > > and removes it in chunks with a Q-tip. > > > > > > The pins were so bad that I had to do it a > > > couple of times then clean the residue with RS > > > spray contact cleaner and Q-tips. > > > > > > It's much cheaper than buying and installing > > > new 15 pin Jones connectors, if that mounting > > > type are even available. > > > > > > Nice to see shiny metal coming through but don't > > > know what to do about the plug receptacle. > > > > > > Does anyone have a cable mount 15 pin Jones > > > receptacle for sale ? > > > > > > Without the shell is OK as I can use the old > one. > > > > > > Regards, > > > > > > Jim / W1FMR > > > > > > > > > > > > > ---------------------------------------------------------------------- > > Submissions: [EMAIL PROTECTED] > > Unsubscribe: [EMAIL PROTECTED] - > unsubscribe drakelist in body > > Hopelessly Lost: [EMAIL PROTECTED] - help > in body of message > > Zerobeat Web Page: www.zerobeat.net - sponsored > by www.tlchost.net > > > ---------------------------------------------------------------------- > > > > ---------------------------------------------------------------------- > Submissions: [EMAIL PROTECTED] > Unsubscribe: [EMAIL PROTECTED] - > unsubscribe drakelist in body > Hopelessly Lost: [EMAIL PROTECTED] - help in > body of message > Zerobeat Web Page: www.zerobeat.net - sponsored by > www.tlchost.net > ---------------------------------------------------------------------- > ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
