> 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.
I've used this trick, or silicone spray, or Kroil (a pentrating oil). As stated, the slugs are very brittle. You may have to whittle a suitable adjusting tip. I've had some success, a few times, extracting a core where the adjustment hole has cracked and inverting it, so the remaining good end is usable. All in all, they can be a real pain. Don't force them, it just gets worse. I think that heat alone often helps the 'stuckness'. Note that many commercial rigs will have the slugs sealed in place with paraffin that seeps down into the threads... 73 de chris K6DBG _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
