I've used a small rubber band or some thread. Most of the time, I've had to trim the rubber band with a razor blade to get very narrow. I've also coated the thread in wax prior to dangling it into the tube.
73, Mike WM4B From: [email protected] [mailto:[email protected]] On Behalf Of Chuck Kelsey Sent: Saturday, May 29, 2010 12:46 PM To: [email protected] Subject: Re: [Repeater-Builder] Transformer cores I've always heard about inserting a small diameter piece of rubber band in between, but have never found anyone that actually had it work. If it were me, I'd get some bees wax, melt it, and quickly dip the core in it using a tuning tool so as not to coat the innards. This would put a small coating of bees wax on it, increasing the diameter and making it a bit sticky. That said, I've never done any procedure. Chuck WB2EDV ----- Original Message ----- From: "Doug Hutchison" <[email protected] <mailto:specialq.que%40ntlworld.com> > To: <[email protected] <mailto:repeater-builder%40yahoogroups.com> > Sent: Saturday, May 29, 2010 12:37 PM Subject: [Repeater-Builder] Transformer cores > Hello, > > Got situation where the 'elastic' or whatever inside RX IF transformer > has disintegrated through age allowing ferrite core to drop to bottom > thus negating adjustment. > > What successful fixes have been found for such a problem which will > continue to allow adjustment yet not jam the core? > > Doug - GM7SVK > >
