cheap way to test "doorknob" capacitors? (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 8 Nov 2004 00:08:42 -0500
From: Jack Vandam <snotoir7674g@xxxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: cheap way to test "doorknob" capacitors?

I have just come across an assortment of used doorknob capacitors.  Since I
don't know whether or not they work, I would like to test them.  What would
be a simple way of doing this?

Thanks,
Jack