I realize they are interchangeable, but from an anal point of view, I wanted to stay with what's been in there. Besides, adding an "A" means it's better, right? Harry, KT4AE > > I have never heard of a case where 6146's and 6146A's were not > completely interchangeable. Has anyone? 6146B's are very different. > > -- > *Charles Ring W3NU*