Gene, I have a gold ring with my call letters "K2EMR" that I got as a present from my parents for my 16th birthday in 1960. It weighs about an ounce and cost about $16.00
Ken ----- Original Message ----- From: "Gene Heskett" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <[email protected]> Sent: Thursday, April 17, 2008 5:53 AM Subject: Re: [Emc-users] My runaway A axis problem. > On Thursday 17 April 2008, Erik Christiansen wrote: >>On Thu, Apr 17, 2008 at 03:43:08AM -0400, Gene Heskett wrote: >>> >I think the cyanide solution was for gold plating, and we used a >>> >titanium anode, to avoid polluting the solution. (Which was consumed.) >>> >>> The solution or the electrode? For either, I always assumed that the >>> anode should be whatever metal was being plated in order to replenish >>> the >>> solution. >> >>The solution. The titanium was chosen for inertness. > > Platinum is even better. That is what is used in our transmitters > plumbing, > and helps to keep from carrying the hose barbs away from > electralisys(sp?). > > Particularly on the water i/o at the tube socket, which has 7200 volts on > it, > and the other end of a 7 foot water hose is grounded. Obviously we use > deionized water, but still, there is about 2 inches of about a 20 gage > platinum wire mounted in a plug on the back side of the elbow fitting so > that > the wire is the first thing the water sees coming in, and again when it > leaves as the last hot item it passes. They last about 10 years or more. > We > have a meter reading the leakage to ground on one of the hoses, about 6" > from > ground on a pipe section with another 6" of hose to isolate it. It was a > 100ma meter originally, but that is very gross leakage when we can see a > reading at all on it, so I put a 10 ma full scale meter in about 15 years > ago, with instructions to the operators that the max allowable reading was > 2 > ma, and plan on changing the de-ionizer cartridge/tank when it exceeds 1 > ma. > If the water is in good shape, the meter reads maybe .2 ma. Getting picky > has paid off, the only reason we had to do maintenance was to replace the > galvanized iron hose barbs which would go away internally about annually. > It > gets real interesting when a hose blows off, and 300 gallons of water > sprays > all over the inside of the transmitter. Then I put brass barbs, and new > platinum rods in about 15 years ago cuz there had to be something better. > I > got nervous about 5 years ago and we replaced the hose & barbs again, but > the > barbs we took out can go back in the next time, no damage once I took a > real > pissy attitude about water maintenance. But I have to watch culligan, who > does the deionizer refill stuff for us. They don't always do a very good > job > of servicing them. I demand a .2 ma reading a week after the tank is > replaced & if it don't do it, I take it back & get grouchy. Its a > 'bypass' > system, taking a piece of refrigerator icemaker hose off the top of the > pump, > with about 20 feet of it as flow restriction, dumps into the culligan > tank, > and a 10 foot hunk of cheap garden hose dumps it back into that big copper > tank the pump pulls from. Pump flow is around 50 gpm. > > Interesting thing, the hose is 1" ID, and we had been using hose from a > mining > supplier for several cycles and then they changed the hose to an > antistatic > version without bothering to advise us. We put it in, turned on the high > voltage and could smell burning rubber in about 30 seconds. Shut the high > voltage off, opened the door and found our brand new hose had turned into > a > garden sprinkler! Now I go and get it myself & make sure there's no > anti-static labels on it. > >>I like your >>preference. Keep the solution in good nick, for next time. The raw metal >>has to be cheaper than its salt. (Crikey, silver is still only $18/oz!) > > I can recall when it was $3 or $4/oz. But that was, shall we say, a few > years > back up the log. I even had light brown hair & needed the girls quite > frequently then. > > And its not a 'stocked' item, most silver changes hands only on paper. And > most of that is probably because some dickhead is playing with the market > like the Hunts did 25 years ago. But they got greedy, and caught. > > Thanks Erik. > > -- > Cheers, Gene > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If swimming is so good for your figure, how come whales look the > way they do? > > ------------------------------------------------------------------------- > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Don't miss this year's exciting event. There's still time to save $100. > Use priority code J8TL2D2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. 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