>
>On Thu, 3 Sep 98 13:43:11 -0800, Rich Measures wrote:
>
>>>...... I was refereing
>>>to the Continetal 4CX15000A (8281) cavity
>>>design used in broadcast.
>>
>>What freq?
>
>FM band this one was at 94.7Mhz...
>
Thanks, Shawn.
. The directly-grounded screen-resonance was presumably a bit too close
to the anode-resonance, so adding reactance in the screen circuit helped
to improve isolation between the anode and grid. . My guess is that a
directly-grounded screen would be best for 50-54MHz operation of the
8281. A dipmeter is useful for making this determination.
- later
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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