Hi Gary, A tip passed on to me when I was having the same problems with some very small inductor cores in a commercial 2 way was to place a small amount of petroleum jelly on the thread topside of the core and carefully warm it with a heat gun or hair dryer before attempting to shift it. It is very important to use the correct trimmer tool for moving inductor cores as some of the ferrite types are very brittle and unforgiving. Quite a lot of the small inductor cores also have a trimmer slot both sides which means the core can be reversed if one side gets broken or can be sometimes be accessed from the opposite side, though you cannot usually make much headway if the core splits. At this point the easiest option is to order a new variable inductor. The worst situation is if the inductor core jams solid and no spares are available. One way out at this point is to add another ferrite/iron dust core if the inductance is too low or a brass core if too high. Not a problem with Elecraft products, but what can be a solution with obsolete equipment when in that situation. Bob, G3VVT _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft
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