Found Silver & Tantalum

I have taken some pictures, but there not very good. I will try to post them tonight. The only camera I have is my cell phone, but I'll give it a try little later when I can.

First let me clarify the silver/tantalum capacitors did not come off any brown or tan boards. They have all come off of medical, computer and communication boards. I have found the axial leaded "hermetically sealed tantalum" capacitors. Made by a company called KEMET series T110 these are the smallest of axial type I have found so far. They did come off of a green/tan board, from a "indusriall machine" used to process chemicals. I don't have my notes in front of me right now, but these t110 caps have a tantalum case. I'm going on memory so will check notes in the morning on those ones.[IMG][/IMG]

The above picture is from a scintillation camera. If you look at the above picture, in the 5 o'clock position is two capacitors, these are the 109D silver/tantalum capacitors made by Sprague. The board on top is called a "Pizza Board" by G.E. Medical Systems. These boards have lots of gold IC chips. It was your post from a couple of months ago, that put a "bug in my a$$" that said go look at those camera things again, so thank you! I'm trying to figure this photobucket thing again so I'll post some more pictures in a few, going to go set by the fireplace and eat some cherry pie! back in a few.

[IMG][/IMG]

These are the same two capacitors that are on the Pizza Board posted earlier. Sorry about he poor picture, it has to be the space between my ears!

ScrappinRed it is thanks to you! Your post and much better ability to take decent, in focused close-up pictures. I do read, reread the SMF post, as well as enjoy the very exciting, dynamic and "Edge of Seat" manufacturers data specification sheets. Thanks again for your post.

Reading some tantalum capacitors spec sheets this morning about "wet" tantalum capacitors. Seems like the case body is utilized as part of the cathode. Thus increasing the cathodes "plate" area. So using a Fluke 77 multimeter and a handful of confirmed wet tantalum capacitors I tested this out. After scratching and penetrating the protective plastic sleeve verifying indeed the case is connected to the cathode lead. I went on to test a bunch of standard aluminum electrolytic capacitors, verifying the cathode leads of these capacitors or not connected. Next up I tested some axial leaded capacitors that have the "+" markings on both the boards and the their cases. These did have the cathode leads connected to the case body? The unconfirmed axial leaded caps have no magnetic properties. The confirmed tantalum caps (all verified by mfg. data sheets & case body markings) all have magnetic properties. To add confusion there are a lot of capacitors that are not tantalum that have magnetic leads.

I'm trying to come up with more ways to quickly and positively find/confirm tantalum capacitors. My hypothesis on this so far, I got a long way to go before I become a tantalum expert. Any and all help or comments greatly appreciated and welcomed. Thanks everyone.