Hello Clemens,
Yes, sorry, i meant currents due to the stray capacitance between the windings,
not due to a low ohmic resistance of their insulation. Stray currents surely
also occur. Since its rated current is 12,5A the reason is not a too thin wire
in it ;-)
73, Stefan
________________________________
Von: [email protected] im Auftrag von Clemens Paul
Gesendet: Di 02.03.2010 22:58
An: [email protected]
Betreff: Re: LF: VLF TX experiments_short report
Hi Stefan,
>...But thus the internal C is high, so stray currents occur that increase the
>resistive
>losses. Additionally the >proximity effect plays its role...
Do you mean circulating currents by 'stray currents' ?
Did you measure the self resonant frequency of your coil?
As long as you operate at half its self resonant frequency stray capacitance
won't hurt
regarding losses.
>Q is low, just abt 38 and thus i get such a low voltage at a given power. But
>i will build a
>own VLF coil soon, >with the needed L so that no parallel C will be required.
Doubling a given inductance by a parallel C will quadruple losses at the same
frequency.
73
Clemens
DL4RAJ
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