On Fri, 27 Mar 1998 02:17:35 +0000 W7CW Jay E Ostrem <wc7m@vcn.com>
writes:
>The question.
>
>Which of these methods, or other methods would constitute good
>engineering
>practice for building a band switchable network? (how are the big
>boys
>doing it?)
>
>
>
> 73 Jay W7CW
Jay,
The only sensible way is a vacuum variable.
7 to 500pf at 10Kv is a common value.
For 10M you can experiment with the L but it may be necessary to center
tap the 10M L which will quadruple the C required....thats an old
commercial amp trick.
GL Carl KM1H
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