On Fri, 12 Feb 99 14:10:21 -0600 Jon Ogden <jono@enteract.com> writes:
>
>>As mentioned here many times and in magazines is to take the ideal L
>you
>>want for 10M and run the C off the center tap. This will have the
>effect
>>of requiring a 4X stepup in the C requirement. It and the L you
>mentioned
>>also affects all the other bands in decreasing amounts.
>
>So what I am hearing you say is if you want 2 uH of L on 10M, then you
>
>put a 1 uH coil between Ctune and the blocking caps and the other 1 uH
>
>coil from Ctune to Cload.
YES
>
>Sounds like the same thing I was thinking except for the fact that I
>didn't realize that both inductors should be of equal value.
The idea was to increase the minimum required C. You can move the tap
around for other stepups but the balanced T arrangement is the one most
often mentioned.
Adding another completely seperate L ahead of the 10M coil works on paper
but I have not tried it ; but would seem to add a reverse requirement on
the lower band taps.
In either case and in reality only 12, 15, 17 and 20M in descending order
would see a noticable effect.
Nothing is simple!
73 Carl KM1H
>
>Thanks!
>
>73,
>
>Jon
>KE9NA
>
>
>------------------------------------------------------------------------
--
>Jon Ogden
>
>jono@enteract.com
>www.qsl.net/ke9na
>
>"A life lived in fear is a life half lived."
>
>
>--
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>
>
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