davycoppitt
Member
Toward the middle of this thread there was a discussion about Palladium Plus rings. I was wondering if anybody had an update on what alloy they contained?
jimdoc said:Does anybody know what other metal is in the Palladium/Plus school rings? I remember in 1981 when I graduated they were popular, but
I forget what the catalog said about them. I was wondering if they are
alloyed with ruthenium or iridium? Or maybe just rhodium plated?
I have about ten of them, and if they are ten percent ruthenium, that
would add up to a substantial amount with the price where it is now.
blk03001 said:I've asked around the industry and it is 90% palladium. The remaining alloy will be silver, nickel, cobalt, or ruthenium or any combination.
Sorry I wasn't able to get more information, but with the palladium markets on the rise it may be worth refining for you.
jimdoc said:Here is a picture from an Ebay ad that shows the contacts and bussbars.
If you look on the tips of the contacts, and the top of the "bussbars" you can see the palladium wire.
I asked one of my audio technicians who has strips and rebuilds Hammond organ from the year dot.safewaybestway said:jimdoc said:Here is a picture from an Ebay ad that shows the contacts and bussbars.
If you look on the tips of the contacts, and the top of the "bussbars" you can see the palladium wire.
I Hope this in the right spot, and order. I was just given a old Hammond organ, and read on here a year or so ago about the Pd wire and other PM's in these. After disassembling the keys and foot pedals I have got it down just as this photo shows and can easily see the Pd wire on the end of the copper pieces. Being my 1st organ I'm not sure how old it is, though from reading many posts on here I do know it's the old tube type and the printing on the papers tacked into the inside it looks to be from late 40's early 50's. On the info plate is the model # BC. The only thing that I'm not sure of is what the composition of the bars under the copper plates as shown in the photo. The ones I have are very shiny, not dull/dark like in the photo, and a rem magnet will pull to it but not a strong attraction. So my question is what is the composition of the long bars? Also why are the tubes from this organ and amp console so expensive? Do they contain PM's or just hard to find parts? Any info would be much appreciated.
hey Mikemsg,So did anyone ever have palladium plus class rings tested with the xrf gun yet to find out the composition of metals in the rings?
While it's a great indicator for testing for palladium in solution, using it to for recovery will overwhelm you unless you're recovering only tiny amounts. Besides, it's a bitch to dissolve, so you waste a lot of time preparing the unneeded solution. The precipitant, which is canary yellow, is hugely voluminous. That's why it's such a good indicator. It's a lot better to use ammonium chloride and sodium chlorate. Fun to watch, too!
Got Hoke's book? He walks you through the process!
Harold
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