On Mon, Oct 10, 2022 at 12:53 PM, Bert W wrote:
From my point of view it will be better to use thick silver-plated copper wire
for high-Q inductors.
That is true in some circumstances, it depends on the inductor in question and the frequency.
For a 240uh air core inductor at BCB frequencies, I doubt silver would beat litz, because of skin effect.
In copper at 1MHz, the resistance is 6.7 times the DC resistance. It is similar in silver.
But it all comes down to the diameters. 660/43 litz is about 0.065", if you went with a
silver wire 0.065", because of skin effect, 37% of the current flows in the wires outer 0.026".
This causes the AC resistance to be higher that the DC resistance.
These pages has some explanation.
Mikek
