# [TCML] My Hemisphere/Toroid with Unconnected Top Sphere results

Peter Baitz ussenterprisencc1701 at rocketmail.com
Fri Sep 11 21:58:44 MDT 2009

```Hi Bart,

Thank you for this in-depth explanation, definitely not info I came across before, and that does make a great deal of sense and does explain why adding the top sphere would not throw off tuning the hemi/toroid.

However, what still remains is with the top sphere directly connected I do not get the same power output (streamer lengths) as with it unconnected/isolated on top, or with one of the wire coil setups I have been testing which get much more power output out of it.  It seems to me the coil connecting the top sphere and hemisphere act as a tesla magnifier of sorts, often pumping the hemisphere/toroid output, and sometimes the sphere breaks out.  I posted an additional picture of tonight's coil session and result with a double-coil tertiary coil setup.

Website with pics:
http://www.freewebtown.com/baitzobservatory/tesla/index.html

Thanks again for that great info and explanation.

Peter

>>>------------------------------
I understand what you are saying, but the data is incorrect. The sphere
capacitance of both). You really need a program that looks at the
effective combined capacitance in situ from ground plane to top load
objects, coil to top load objects, object to object, etc.
For example, a 4" x 20" toroid (by itself) raised 50" above the ground
plane = 22.8pF
Stack a 2nd toroid of the same size resting on top of the first = 26.7pF
If we raise the 2nd toroid up to a 60" height, C increases = 30.8pF

When these top load objects are stacked on top of a coil, the effective
top load capacitance changes again as the secondary coil and primary
coil are then in situ of the objects.
hemisphere/toroid and will only change Fr a few kHz (about 20kHz with
many of us have done many times over many years and we've made plenty of
measurements to see the effects.
If you have a generator and scope, you should measure the change in Fr.
Playing with top loads is always fun to do, but it sure is nice to take
a measured Fr reading as it tells the tale.

Best regards,
Bart B. Anderson
>>>----------------------------------------

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