tantalum capacitors

[Marcel]

One easy way to find out wheter it is Ta or not is simply using google. read the type number, google for typenumber + "datasheet" and you will be able to answer most of the questions by yourself
I have a company in my town that does high temperature metal melting. I asked the owner about Ta and he said, that noone can melt Ta.
Well. maybe some NASA suppliers can, but better forget about melting. I think some volcanos reach more than 3000°C in their magma. If you live on hawai you may try it out -maybe.
You have to sinter it.

 

[butcher]

joshh,
In the second photo the ones with porcelain are arc gaps, if voltage climbs too high the in the circuit the high voltage will arc across the gap inside these components, these are not capacitors, I have no idea of what metals they are made from.

 

[Geo]

Couple more pic's.
Thanks!
Phil

Phil, looks like you and i have been scrapping in the same pile. that looks like some of my stuff.

 

[philddreamer]

yeap... and I just picked up another135 pounds of MB's and fingered cards and there were a handful of nice older boards loaded with Ta's.

I also picked up 24 LSI cpu's, but I can't find info on them.
My favorite of this last batch are the 3 SUN MICROSYSTEMS boards. They have the SunGX 1134A2 and this outfit calls it a vintage cpu:
http://www.acpsurplus.com/servlet/Detail?no=2508

I hope you can shed some light on some of them.
Thanks!
Phil

 

[Geo]

from a CPU-forum. the prices are estimated at collector value.
0452.LSI VC1 L1A6654 $1
0453. LSI HPC1.5 L1A6760 $1
0454. LSI PIC1.5 L1A7207 $1
0455. LSI VMECC L1A7246 $1
0456. LSI ID L1A7788 $1 Quantity 3
0457. LSI F L1A7975 $1
0458. LSI SCIP L1A9268 $1
0459. LSI EPC L1A9542 $1
0460. LSI DANG L1A9893 $1
0461. LSI F3 L2A0197 $1



http://www.cpu-world.com/forum/viewtopic.php?t=16055

also,
http://www.plasma-online.de/index.html?content=http%3A//www.plasma-online.de/english/identify/picture/sun.html

it definitely graphics processor. i keep pulling up something called a frame buffer. those big Motorola ceramic processors will have a nice gold plated cap and the legs should be about half gold plated. too bad they didnt plate them through the board.

 

[scrappile]

Not trying to confuse just trying to identify and finding the best places to look for them.
Looking in the wrong box of many boxes.

Did fine some help with the visual ID, I think.

http://www.alliedelec.com/search/searchresults.aspx?dsNav=Ny:False,Ro:340,N:106-4294887054-4294959754

92 pages worth.

Applications:
Telecommunications (e.g. mobile phones, infrastructure)
Data processing (e.g. laptops, mainframes)
Measuring and control engineering (e.g. voltage regulators)
Automotive electronics (e.g. navigation systems, electronic control units)
Medical engineering
DC/DC converters

a few pictures, to see if this is something you are looking for, refer to number it's in pict name,


Edited to add , post I was trying to quote,

This to not confuse people as to what it is that I'm buying. If you want to ask if it is a Ta cap then post away. 8)

Thanks for your interest
Eric

 

[etack]

Hey Keith thanks for the pics.

Pic 2,and 6 have no Ta caps.

Pic 5 the yellow yes the blue no they look look monolithic caps that are though hole those might contain PM's not sure.

The other pics look to contain Ta caps but they are too fuzzy to tell for sure what is what.

I bought some more examples of Ta caps to put on the first page when they come in I will post the pics.

Keep on saving and send them when its worth the shipping.

Eric

 

[johnny309]

@marcel....your statement said:
"I have a company in my town that does high temperature metal melting. I asked the owner about Ta and he said, that noone can melt Ta.
Well. maybe some NASA suppliers can, but better forget about melting. I think some volcanos reach more than 3000°C in their magma. If you live on hawai you may try it out -maybe."

Here are your examples....I use GOOGLE...and ...:

http://uctend.en.made-in-china.com/product/UbuJpBqraSWt/China-Tantalum-Ta-Plate-Sheet-Foil.html
http://zzkingdon.en.made-in-china.com/product/CXxEIbqdZnVH/China-Tantalum-Sheet.html
http://lytongchang.en.made-in-china.com/product/YMcJwkSDCorU/China-Tantalum-Products.html
http://xtjtsm0209.en.made-in-china.com/product/tXKxRvWDYQhl/China-Pure-Tantalum-Ingot.html

 

[butcher]

Interesting some parts we scrap from junk could be made from tantalum.

 

[etack]

I added new pics of Ta caps.

If you have some thing you don't see let me know.

Eric

 

[Marcel]

@marcel....your statement said:
"I have a company in my town that does high temperature metal melting. I asked the owner about Ta and he said, that noone can melt Ta.
Well. maybe some NASA suppliers can, but better forget about melting. I think some volcanos reach more than 3000°C in their magma. If you live on hawai you may try it out -maybe."

Here are your examples....I use GOOGLE...and ...:

http://uctend.en.made-in-china.com/product/UbuJpBqraSWt/China-Tantalum-Ta-Plate-Sheet-Foil.html
http://zzkingdon.en.made-in-china.com/product/CXxEIbqdZnVH/China-Tantalum-Sheet.html
http://lytongchang.en.made-in-china.com/product/YMcJwkSDCorU/China-Tantalum-Products.html
http://xtjtsm0209.en.made-in-china.com/product/tXKxRvWDYQhl/China-Pure-Tantalum-Ingot.html

There is no question, that there are companies out there, that are able to cast even tantalum. But with material like that you are better off to sinter them: http://en.wikipedia.org/wiki/Sintering
With a torch and the tools we are working here, we are not able to make it melt.

Marcel

 

[patnor1011]

Some nice pictures of Ta caps.
http://goldankauf-sondermetallhandel.de/4.html

 

[johnny309]

Oldies but goldies...I mean silver....23 grams in weight by piece....

http://i46.tinypic.com/2aj2nn.jpg

 

[etack]

Those are pretty. I have found that the seem to run 40%Ag, 40%Ta, and 10% plastic or other weight.

If you process them let me know if this is right. and if you want I will buy the pellet if you get enough to ship from Romania. :lol: :lol:

Whats nice about them is you can just cut the bottom to remove the sulfuric, wash them, than put the rest in nitric and sort out what is left. What doesn't dissolve is either Tantalum or plastics.

Eric

 

[johnny309]

What you understand by the term "enough"?
You are right about the content...But I didn't procees them ,because of some other bussines.
As for Ta capacitors....I have many types....and pounds...

 

[voeckel]

Just found this and remembered this thread.

http://www.futurlec.com/CapTant.shtml

 

[etack]

New prices need your caps. If you have over 20# let me know.

Eric

 

[glorycloud]

I bet I have over 20 pounds. PM me some prices. 8)

 

[etack]

hey GC I sent you a PM wondering if you got it? Let me know what you have.


Eric

 

[etack]

launched my new website first one will expand it in the near future.

http://recycletantalumcapacitors.com/

Thanks

Eric