"tom" wrote
t...
On 6/25/2010 12:06 PM, Szczepan Bialek wrote:

They must: " In electronic circuit theory, a "ground" is usually
idealized
as an
infinite source or sink for charge, which can absorb an unlimited
amount of
current without changing its potential."

Your mistake here is to assume that because they can sink current that the
are sinking DC current. The "ground", as you like to think about it may
carry current during the RF cycle, but there is nothing that would cause
an unbalanced charge buildup since it IS symmetrical.

Your mistake here is to assume that the RF cycle, IS symmetrical.

Each real wave is asymmetrical. The forward pulse is always stronger than
the return.
For this reason you must have power on.
S*