"Richard Clark" wrote in message
...
On Fri, 14 Jan 2011 07:20:20 -0600, "amdx" wrote:

I want maximum transfer of power, I'm still working with the tank as
a large pure R so I want the antenna to look like the same large R.

No you don't.

What you want is the lightest final load sufficient to drive a speaker

We haven't got to the load yet! it's coming :-)

for a detectable sound matched to the Tank such that it does not
degrade its Q which in turn is the highest possible value for
supporting the largest amount of signal from the antenna at hand.

Am I wrong?

There is a chance the Q (loaded) will be high enough to limit audio
bandwidth.
So (I think) we couple more energy into the tank for more signal and this
would
lower Q for a wider bandwidth.

Here's a question I have brewing.

I have three circuits to put together, a source, a tank and, a load.
I have two scenerios. hmm..seems as though I have three!
For now assume they are all resistive.
These are all set up for maximum power transfer, just in different order.

Scenerio 1.
Let's say the tank is 1 megohm.
I drive the tank with a 1meg source, so now I have 500Kohm circuit
impedance.
Then I load this with 500Kohm load.
So..
The 1 megohm tank is loaded with 333,333ohms, 1meg//500k
The 1 meg antenna is loaded with 333,333ohms, 1meg//500k
The 500Kohm load is drive by 500kohms. 1meg//1meg


Scenerio 2.
1 megohm tank.
I put a 1 megohm load
I can drive the tank with a 500Kohm source,
So..
The 1 megohm tank is loaded with 333,333ohms, 500k//1meg
The 500 Kohm antenna is loaded with 500Kohms, 1meg//1meg
The 1 megohm load is driven by 500kohms. 1meg//500k



Scenerio 3.
1 megohm tankThe
I drive the tank with 2 megohm source and load it with a 2 megohm load.
So..
The 1 megohm tank is loaded with 1 Mohm, 2Mohm//2Mohm
The 2 meg antenna is loaded with 666,666 ohms, 1meg//2meg
2 megohm load is drive by 666,666 ohms. 1meg//2meg

I have no clue where maximum power is delivered
from the antenna to the load.

This aught to be fun :-)
Mikek