"Ken Smith" wrote in message
...
Heck, that can happen before you hit 1MHz. Check out the ESL and ESR of a
47,000uF capacitor some time.

For some of the university work I've done, some of our reference papers are
from people modeling power lines as full-fledged transmission lines that are
many wavelengths long at 50Hz. No simple equivalent circuit model works for
them either!