[HBR] Looking for that three section variable

[William Wood]

While I do like the idea, and could one of these days go that route
Bill, I was told by a couple of guys that this could introduce a small
amount of instability.  My original thought was to insulate the cap
from ground, then put that extra cap between ground and the cap.

I also thought of putting in an extra tuning cap and putting a stopper
on it, to bring it down.  And depending on how we put that stopper
on it, then could pull the plug one day and use it for either other
parts of the band, or out of band listening.  But I have not thought
too hard and heavy on that one : )  I would want it to be
re-positioned exactly if I did that, so I would not have to fudge with
any calibrations and such.

Thanks for the idea tho, and like I said, if I don't find what I'd like,
will maybe even modify the 140 variable.

73
Bill


On Sep 13, 2010, at 2:36 PM, Bill Cromwell wrote:

> Hi Bill,
>
> What about using one of those 140s with series caps to reduce them to
> the "25 or so". 33 pF for each of the three series caps will make each
> section max at 26 pF.
>
> 73,
>
> Bill  KU8H
>
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