distribution Hi,friends I am working on the electro-thermal devices, I need a small bell-jar or chamber and base to put the device in the chamber to apply current to see the temperature distribution.sample in vaccum is using to elimiate the heat convection effect.i check some catolgs,it looks more expensive,so does anyone has the informations to let me know,any advice and suggestion is appreciated! J. ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com