开云体育

On Tue, 8 Sep 2020 at 15:11, Jerry Gaffke via groups.io <jgaffke=
[email protected]> wrote:

Yes, the R's have no effect on resonant frequency.

They do lower the Q.

The resonant frequency of a parallel tuned circuit does depend on the
resistive losses, but for a series tuned circuit it does not. I believe
that all the books aimed at passing amateur radio exams make the assumption
that R doesn’t matter. For modest losses, the effect is minimal, but for
high losses it is not.

G8WRB

--

Dr. David Kirkby,
Kirkby Microwave Ltd,
drkirkby@...

Telephone 01621-680100./ +44 1621 680100

Registered in England & Wales, company number 08914892.
Registered office:
Stokes Hall Lodge, Burnham Rd, Althorne, Chelmsford, Essex, CM3 6DT, United
Kingdom