That you're using for your handheld xprotolab? I've been all over Hammond's web site...
 
(Wow, I get to be the first to post in this forum?) 

Hammond site: /\r\n/http://www.hammondmfg.com/1553.htm
Datasheet: /\r\n/http://www.hammondmfg.com/pdf/1553AA.pdf
You can buy here: /\r\n/http://www.mouser.com/ProductDetail/Hammond-Manufacturing/1553AABK/?qs=sGAEpiMZZMuJ4fFFisbzZHnnfsvrANyU

Oh. Those. I didn't realize they came that small. Thanks.
And that cool blue face is?
(Relax, I'm not making oscilloscopes.)