> >Pappenfus et al. (and even Eimac) explain why the curvature produced by >grid current in AB2 can cancel IMD. ** Is Eimac talking about IMD cancellation in grid-driven AB2 or cathode-driven AB2. The Eimac reference, please. - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, www.vcnet.com/measures. end