[murf]

Have found that insulating the wires from the transformers to the tuning capacitor is a problem with Philco's and others that have shields on them.
Also used hem for any wires including power cords that pass thru chassis.
I buy them from McMaster Carr. I am sure there are other suppliers.
Works great if you don't feel like replacing the wires that connect grid caps to chassis.
I just snip one side open so that I can locate it over the wire without disconnecting wire.
Here are a couple pics.

[Image: http://i1161.photobucket.com/albums/q509...rs%201.jpg][Image: http://i1161.photobucket.com/albums/q509...r%20-2.jpg]