> Interesting. So I should run my MP at full power into an attenuator > then into my QRO HF-2500DX? ;-) Norm ----- Original Message ----- > From: "John" <[email protected]> To: <[email protected]> You are probably much better off running near full exciter power and reducing it with an attenuator for several reasons. This is **especially** true if the amp uses tetrodes.73, Tom W8JI [email protected]