In a message dated 8/7/2006 10:34:24 A.M. Central Daylight Time,
philc@texascellnet.com writes:
> >Ian,
> >Are you saying that a GDO can only dip a "circuit?"
>
> I'm saying you can't even have an L-C resonance without a circuit -
> literally a closed, hard-wired loop.
>
> For example, if you simply connect an L and a C in series, with opposite
> ends floating, you don't have a closed loop so you don't have a resonant
> circuit yet. Before you can see a resonance and a dip, you must make
> some other connection that closes the loop and completes the circuit.
>
> But the resonance then belongs to the entire circuit you have made - not
> just the obvious inductor and capacitor, but also all the strays that
> you don't know about.
>
> That requirement for a hard-wired circuit only begins to break down if
> components are physically large enough to have significant
> electromagnetic interactions between different parts of themselves -
> antennas being the obvious example, and large anode chokes being
> another.
I agree with all of the above. Someone should have said this about 75 posts
back to enlighten the multitudes of readers on the reflector. About 50% of
the questions would not have had to be answered.
Now here is the biggie that caused this thread....is the grid on a 3-500Z
physically large enough to fall into "significant electromagnetic
interaction" category, or is it in the "hard-wired" category, or none of the
above?
(((73)))
Phil Clements, K5PC
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Or perhaps "all of the above"? When in standby, "hard wired" and when grid
current is flowing "significant electromagnetic interaction" categories?
Just when we begin to think we know everything it becomes apparent we really
know very little about this stuff.
73,
Gerald K5GW
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