strange inline caps? pd silver or ?

[wpg]

hello all

im new to this site and i have been takeing apart some rf electronics and i found inside some caps rated 1kv they are metal bright like sliver however when i melted a cap it took extream heat and a long time to blob useing a oxy acceteline torch

im just wondering if anyone else has seen thease little caps

i spent much time reserching the part numbers without any luck online

i expext them to be caps as how they are marked 1kv

might they be pd?

thanks for your responces i will post a few pictures of what they look like

wpg

 

[Militoy]

Maybe you could at least share whatever other markings might be on the cap - as well as some kind of physical description, other than "silver'. Your question is kind of similar to a person asking on an automotive forum "how fast will my car go?", without any other info. :roll:

 

[patnor1011]

Did you check them with paper? Are you sure they are not (whatever) tin plated? You can dissolve some in HCl/Cl or AR and test with DMD for Pd.

 

[qst42know]

http://en.wikipedia.org/wiki/Tantalum

 

[wpg]

thease are not any normal caps

they are thred in solid white metal caps i think as they are marked 1kv witch is clearly the voltage rateing .. now they may be ac caps they came out of very expencive rf amps for the catv system

so far i have collected around 250 grams of them ..
i can provide make and modles of the trunk amps they came from

i will take a few pictures today and post them here

so i dont know how fast the car goes but i think it is a car .. here are what is marked on the caps i have around 3 or 4 diffrent sizes of them some were from fiber nodes some linex's and the big ones from the trunks..

markings
the small ones have no markings \
middle size are marked CMI 258331-21
the large ones are marked T .01Z also marked CMI 103A 1KV
and marked T 1000 P there are 3 or 4 diffrent marked large ones and weigh about 3 grams each

they look like silver almost the same as my .925 ring
but it takes too much heat to melt for it to be silver as i have tryed i melted some .925 with the same torch and it was almost an ounce took maybe 10 min to blob i melted one of the caps around 3 grams and it took a lot longer to melt let alone blob so not sure exactly what they are .. they are quite soft i can shave it with a knife easy and cut with clippers with little effort they are not plated it is the same metal all the way through

wpg

 

[wpg]

Did you check them with paper? Are you sure they are not (whatever) tin plated? You can dissolve some in HCl/Cl or AR and test with DMD for Pd.

do you mean like a streak test to see if anything is removed to the paper i have herd that silver may leave a line on paper ..
never tryed it just hear say ..

knowing how much a fiber node is worth a line ex and trunk amps i expect them to be of value as there really wasent much else inside the amps of any value the prices of a node is around 1800 line ex's are 600 - 1000 ea and trunks up to 2500 ea ..

i had 4 skids of rf amps .. around 250 amps

darn near got them all taken apart !

it was no easy job!

wpg

 

[patnor1011]

Did you check them with paper? Are you sure they are not (whatever) tin plated? You can dissolve some in HCl/Cl or AR and test with DMD for Pd.

do you mean like a streak test to see if anything is removed to the paper i have herd that silver may leave a line on paper ..
never tryed it just hear say ..

knowing how much a fiber node is worth a line ex and trunk amps i expect them to be of value as there really wasent much else inside the amps of any value the prices of a node is around 1800 line ex's are 600 - 1000 ea and trunks up to 2500 ea ..

i had 4 skids of rf amps .. around 250 amps

darn near got them all taken apart !

it was no easy job!

wpg

Tin will leave gray mark on paper. Nearly every metal is silver-white apart from copper and gold. Colour is not indication in your case - only that you can say that it is not gold or copper. All other options are still available.

 

[goldsilverpro]

Photos?

 

[Militoy]

thease are not any normal caps

they are thred in solid white metal caps i think as they are marked 1kv witch is clearly the voltage rateing .. now they may be ac caps they came out of very expencive rf amps for the catv system

so far i have collected around 250 grams of them ..
i can provide make and modles of the trunk amps they came from

i will take a few pictures today and post them here

so i dont know how fast the car goes but i think it is a car .. here are what is marked on the caps i have around 3 or 4 diffrent sizes of them some were from fiber nodes some linex's and the big ones from the trunks..

markings
the small ones have no markings \
middle size are marked CMI 258331-21
the large ones are marked T .01Z also marked CMI 103A 1KV
and marked T 1000 P there are 3 or 4 diffrent marked large ones and weigh about 3 grams each

they look like silver almost the same as my .925 ring
but it takes too much heat to melt for it to be silver as i have tryed i melted some .925 with the same torch and it was almost an ounce took maybe 10 min to blob i melted one of the caps around 3 grams and it took a lot longer to melt let alone blob so not sure exactly what they are .. they are quite soft i can shave it with a knife easy and cut with clippers with little effort they are not plated it is the same metal all the way through

wpg

From your markings, I'm guessing Corry Micronics, Inc. in Corry, PA. They are a manufacturer of specialty filters, microwave equipment and feedthrough and disc capacitors. A picture might help.

 

[meng2k7]

i guess its a tanatalum chip capacitors, if they are colored black or yellow. :|

 

[dtectr]

Is one terminal of the capacitor marked with a significant line/mark that corresponds with a "+" on the board it came from?

 

[patnor1011]

It is a guessing game till he will not upload few pictures. :roll:

 

[dtectr]

Maybe he's going to "corner the market" & make a million (dollars, that is). :x :lol:

 

[Findm-Keepm]

Look anything like these?

http://www.cormic.com/Products/PDFs/FT2-01-XXXX.pdf

Silver plated, brass body. If they look like these, take a file to it and see.

Cheers,
Brian

 

[patnor1011]

He was not even in last 5 days. I guess we let this topic to die unless he shows up and upload few pictures as he promised.

 

[dtectr]

I second the motion. All in favor?

 

[Claudie]

Aye....

 

[wpg]

He was not even in last 5 days. I guess we let this topic to die unless he shows up and upload few pictures as he promised.

you know some funny thing happens to my computer when i come to this site
hummm it has crashed twice in the last week .... reason i did not get the pictures online ..

any how they may well be filter caps they provide the power "ac" witch drives the amps so they must filter it from the combined ac and rf .. they are located at the pos and the neg coax connection

they thred in to the alum caseing they are an inline style unit meaning power enters 1 end and exits the other there is 1 on the neg connection and 1 on the pos connection

now i have melted a few of them useing oxy/ propline torch just yesterday

something strange happened first it turned golden yellow with some slag on it i chiped off the slag underneath was gold 1 side the other more pt than silver but lighter in weight than pt so i remelted it agin and a lot more slag was formed and my metal blob droped to a 10th of the size .. strange ..

so i melted another for some time useing the same torch and it turned compleatly to slag/ carbon like material
not metal at all is it possible to voliconize gold? because this is what apeared to happen so i took the glass like stuff i was left with after cracking it with plyers to the volt ohm meter .. it is conductive and has high resistance before i tested a metal blob that is in yellow metal form and the resistance is under .5 ohm after extream heat the resistance is like 250 kohm so i thought it may be the caps or whatever they actually are but this was not the case i took some gold wire i found in the amps and did the exact same thing to it and ended up with a non metal conductive material that does not look like carbon

is it possible to over cook a metal ?

i will try to get some pictures of it online


wpg

 

[jimdoc]

Cooking a metal or melting it is not the way to test it.
Do you have an acid testing kit for precious metals?


Here is a good book to read;
http://goldrefiningforum.com/phpBB3/viewtopic.php?f=54&t=2357&p=91479&hilit=Testing+Precious+Metals+C.M.+Hoke#p91479

Jim

 

[wpg]

well i melted it cuz that is what i have .. plus there is **** inside the component aswell as sloder and when i melted it poof the **** was gone so was the solder the good metal was left behind in a blob ... simple and it works quite well
considering im topping 6000 deg

no i dont have a test kit at this time .

some metal gets white hot and spatters while being melted and other metal goes molten clearly visable the 2 metals while being heated when the temp right 1 metal melts long b4 the other

and when i giver heat for a while she turns carbon like but a colour all its own ..

dont mind me im rediscovering the next new element

wpg