In message ,
writes
On Wednesday, December 31, 2014 2:48:18 PM UTC-6, gareth wrote:
In the textbooks, a capacity hat is shown as having a capacity down
to ground (in the case of a marconi antenna), but if you do the calculations
based on the physical dimensions, the resulting capacitance is so small
as to be meaningless.

So, .... what is the real picture here?

Abraham Lincoln often wore a large capacity hat. :/


This one ?

http://cdnimg.visualizeus.com/thumbs...-c6c9e070c37bd
bce15f32993245d99d0_h.jpg?ts=93246

I once made an Abe Lincoln for 23cm as prototype for a beacon
antenna.

Http://www.agder.net/la8ak/images/alford.jpg

Brian



--
Brian Howie