New England QRP Club : The Excitement is Building....

Wonder if anyone else has come across this. I just finished assy of my new NEScaf and all works gangbusters with my regen. Only problem is I'm getting RF into the receiver from what I can only think is harmonics from the clock. Other than putting it in a metal case, does anyone have other ideas to solve this ? I'm using a 9V battery as B+ so it's definitely not mains borne. Thanks, Paul zs2oe