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Re: Rf ground
Original poster: <davep@xxxxxxxx>
9This needs, prehaps, broader comment...)
> Hello everybody,
> Here is a probably silly question. What would the effect be of
> putting a capacitor or inductor in series, between the bottom of a
> secondary coil, and the earth. From what I understand of "resonant
> circuits, assuming zero resistance, once it got rolling power would
> jump between the top load (capacitor plate "A") and the secondary
> (inductor), and would return between the earth (capacitor plate "B")
> and and the secondary via the RF ground. I am not an electrical
> engineering major, so I do the best I can to understand this
> stuff. I tried putting a capacitor (salt water cap, 1 pint mason jar)
To evaluate this, one would need to know the approximate
freq of the coil. One pint seems smallish to pass much current.
> in my RF ground once, and the output was the same, except it needed
> re-tuning of the primary, but that particular coil would
> almost work without an RF ground as it was very small.
There is 'always' an RF ground. 8)>>
Its either designed, or accidental/incidental.
(OK:
arguably excepting coil inside proper Faraday Cage.)
If its not designed in, its taking place thru stray
capacitance, of transformer, affected by stray
inductance of line cord, etc...
best
dwp