09-07-2009, 10:08 PM
This isn't a Philco cap but it might give you some ideas. I used a piece of scrap Plexiglas but you could use most anything that is a good insulator.
-Bill
Note from site admin: Sorry, but the photo which was attached to this post is no longer available.
-Bill
Note from site admin: Sorry, but the photo which was attached to this post is no longer available.