At 06:36 AM 12/5/2006, you wrote:
>I'm trying to tune up a UHF Micor Base repeater, and two of the >cores are stuck (will not turn) >It is L103 and L103 >Any suggestions <---It's been my experience over 30 years that when powdered ferrite cores are stuck, it's because they're cracked (assuming there isn't wax or similar material holding them in place). Unfortunately for you, Micors don't use such material so chances are the cores are cracked. In which case, the only real solution is to carefully drill them out (CAREFULLY!) and replace them. I usually use a drill bit about 3/4 the diameter of the form the slug is in. The drilling process relieves enough stress on the core that it usually shatters into small pieces that are then easily removed without harming the coil form itself. It's then a matter of cleaning out the chaff and threading a new core in. Of course, you need extra cores! Ken ------------------------------------------------------------------------------ President and CTO - Arcom Communications Makers of the world famous RC210 Repeater Controller and accessories. http://www.ah6le.net/arcom/index.html Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net
