Stuck Ferrite slugs

[edison64]

Used this trick many times, if its an allen type, iinsert the right size metal allen wrench short end first, then heat with a lighter about 10 seconds (STOP)! wait a couple seconds and try to turn. if this doesnt work after a couple tries the form may have swoellen around the slug and then it may never turn.

[jeyurkon]

Thanks for the suggestion. These have a flat screwdriver slot in the ferrite bottom and on top a threaded brass rod with a slot. Maybe I can heat the threaded rod.

John