Re: "NEW" idea ?? on primary tapping...

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Original poster: "Rob Maas" <robm-at-nikhef.nl> 

But how do you tune such an arrangement: if you tune
first the primary (no connection with the feeder ring
yet), and then make a tap to the feeder ring, it is
inevitable that part of the circumference of the feeder
ring is either added or subtracted from the just carefully-
tuned primary, thereby immediately ruining the tuning.

If, prior to tuning, there is already a connection between
primary and feeder ring, changing (as a way of tuning)
this connection point, basically does not change the total
primary inductance at all, because what is added on the
primary proper is subtracted from the feeder ring, and vice
versa. Or am I missing something very fundamental here?

Rob

>Original poster: "Yurtle Turtle" <yurtle_t-at-yahoo-dot-com>
>The way I understand his proposal, you'd be able to
>tap it anywhere you want, just like with a long wire,
>but without the hassle. He's proposing a ring be
>placed below the primary. A short jumper would go from
>anywhere along the ring to any point on the primary.
>Just invision a strike ring below the primary. Since
>he's not proposing a closed circle, it shouldn't sap
>away any more energy than a strike ring would.
>
>Adam