[R-390] R390a lost RF deck spring

[Dave Kirk]

 I  have lost one of the springs that pulls down on the rack (bar) that the three iron cores are attached too. This rack (bar) lifts the cores up and down inside the Rf cans, the spring keeps downward tension on the rack (bar). Has anyone ever sourced these springs? Already looked at a few places like Mc Master Carr with no luck one problem is I don't know the load of the spring in oz. 

Dave