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Re: Sparking behavior and a magnifier question
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Sparking behavior and a magnifier question
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From: mrbarton-at-ix-dot-netcom-dot-com (Mark Barton)
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Date: Mon, 11 Dec 1995 23:43:16 -0800
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Chip,
Your diagram below is a little misleading. Notice I said NEAR 2f for
the secondary, and at the Q's these circuits operate at, a miss is as
good as a mile. The secondary is un-tuned and acts as a step-up
transformer without benefit of resonant rise. As far as impedance
matching goes, I suggest you read the theory chapters in _The Radio
Amateur's Handbook_ for easy to understand explanations of that and
related topics.
Zap,
Mark
=====================================================================
You wrote:
>
>>>>
>If the primary and extra coil oscillate at f, then the secondary
should
>be quarter wave reseonant at a substantially higher frequency near BUT
>NOT EXACTLY EQUAL to 2f. You do not want resonance effects from the
>secondary, only transformer action.
>
><<<
>Hmmmm... Now I'm a little confused. Is the extra coil the base fed
>coil that is producing the sparks? That means to me that we have a
situation
>like this:
>
> f================>2f===============>f
>Tank circuit driver coil Final, sparking, extra(?) coil.
> coupled to
> tank circuit
>