To: | amps@contesting.com |
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Subject: | Re: [Amps] Help with ARRL handbook design 4CX1000A 2m PA |
From: | Steve Thompson <g8gsq@eltac.co.uk> |
Date: | Wed, 23 Jul 2008 07:22:55 +0100 |
List-post: | <amps@contesting.com">mailto:amps@contesting.com> |
G4CLA wrote: > Thanks for the reply. Yes I think you are correct, it is not a problem > with the design but my specific amp, but how to find it?! I can drive > the plate current to 800mA with about 10-15w of drive, which agrees > with the expected figures in the design. Even at at 800mA the output > power is only about 700W. On the face of it, the anode load impedance is too low. Screen current can be an indicator of loading - what's that running at, and how does it vary as you wind up the drive power? Steve _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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