Well, my old, addled brain flipped a number on me.. The crystal I need is 7600 KC, not 7900. 7600 KC will put the ARC-1 on 146.52 MC. Yes, the ARC-1 is AM, but I have an idea ( run for cover! ). If you have 7600 KC in either CR-1 or HC-6 holder, I could sure use it. Thanks, Dave S.