[Amps] High Input Swr SB-220

[2]

>I have a SB-220 With high input swr. I have ~2.5-1 on 75 at 3850 and much
>higher than that at 7200. Switches seem to be in sync. Anybody have any
>Ideas?  The caps  look to be the right value. I don't want to start tweaking
>the coils if I don't need to. Shorted coax? I can drive the amp but of
>course my solid state rig doesn't like the high swr.
>I wonder if anybody has any data about tuning the input coils?
>
The fix is to up the design Q of the Pi tuned input to something that 
solid-state radios will take.  This is covered in the Nov./Dec., 1990 QST 
article. [orig manuscript on my Web site]

cheers, Marty

-  R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K, 
www.vcnet.com/measures.  
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