Gene Fuller wrote:
Cecil Moore wrote:
Gene Fuller wrote:
I have stared at the W8JI web page
http://www.w8ji.com/inductor_current_time_delay.htm
for a long time, and I just cannot find anyplace where he mentions
4.5 degrees. Is that your calculation rather than Tom's?

Good Grief, Gene. Do you not know how to change ns of
delay to degrees of delay at 4 MHz? Assuming that some
posters may not know how, here's how.

Degrees of delay = 360(ns of Delay/WL/c)

The wavelength at 4 MHz is 246 feet. W8JI tells us that
the speed of light is 0.9821 ft/ns. That makes the delay
for a 3 ns delay equal to 4.47 degrees.

Cecil,

A proper "quote" does not include any extra analysis. If you want to add
your own explanation or disagreement, by all means do so. Incorrect
quoting simply destroys credibility for your argument.

W8JI did not say "4.5 degrees", you did.

(And yes, I do understand the equations.)

73,
Gene
W4SZ


I know one should not respond to his own post, but I want to follow up
with one more thing.

As far as I can tell, W8JI did not do any math or other type of analysis
to come up with the 3 ns delay. There was some surrounding discussion,
but the delay itself was simply read from an instrument.

So let me repeat my earlier questions.

What went wrong? Why is that number incorrect?

73,
Gene
W4SZ