[Lowfer] "BT" will be on tonight

[Ashlock,William]

Bob,

>What I notice is that if I tune the system to resonance at 166.5 using the
Z-bridge (where it shows pure resistive 50 ohms) the transmitter does not
like it and I get very little current (less than 100ma).  If I tune it for
max current (800ma) the two frequencies are about 3 kHz apart. Max current
is also where I get maximum brilliance of neon bulb near the capacitor.
At this point I can't get a decent reading on the bridge so I really have
no idea what the actual impedance is to calculate power out. But that's
what I tune it for - max current.

That looks like a total system Q of about 100? Can't snarf at that! There
must be something you are adding to change the resonant freq when you
connect the transmitter. Can't you measure the voltage and current out of
the tranmitter to determine the power out (assuming they are in phase
+/-180deg)?

Bill

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