dry plate cap (was Big tc article)


You can make a plate cap with glass and Al foil, it's just that they are
lossy and prone to failure.  When they fail, the glass shatters and goes
everywhere. (See the safety sheet :-))  One idea that occurs to me is to 
use something like vaseline that's fairly clear and stiff.  You could 
surround the foil plates with it to supress corona.