[R-390] R390A rf slug id help needed

[Jacques Fortin]

Hi all,

For what is worth, the RF slugs material looks gray and they have a relative
permeability of 10.
The IF slugs are more greenish in color and have a relative permeability of
3.
Both relative permeability values were determined by measurement on a HP
4192A.

73, Jacques, VE2JFE