As a general rule, the outer can has to be at least a can radius longer
than the center resonator ie a 6 in can must be at least 3 inches
longer than the resonator. There is no maximum length requirement on
the outer can.
Burt VE2BMQ>>
Jeff DePolo wrote:
> Probably not. You would run into problems if you were extending the center
> conductor; as you get closer and closer to the "bottom" of the cavity you
> get more and more capacitance off the end of the center conductor as its
> lengthened. But obviously that's not the case here.
>
> If you haven't modified the loops yet, you may find that you need to.
>
> --- Jeff
>
>
>
> On Fri, 18 Feb 2005 01:01:22 -0500, Thomas Oliver wrote
>
>>Needed a bandpass cavity for 220 not having one I modified one by
>>shortening the inner plunger and the outer conductor. My question is
>>do I need to shorten the outer cavity? I don't think it makes any
>>difference what do ya think? I would like to know before I rivet it
>>back together.
>>
>>tom n8ies
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