>I recently aquired a sb-220. When I try to tune up the amp on 17 meters
>using the 15 meter band switch I get only 300 watts out and both tubes
>really are working hard.
** What is the plate/anode current reading with key-down/AØ emission on
the CW tap? What is the input SWR? Tnx
>I get 1kw out on 15 meters and 20 meters. Is
>my plate choke resonating about 18 mhz ? Any help would be appreciated.
>Peter
>KC0NYG
>
>
>
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