Roy Lewallen wrote:
steveeh131047 wrote:

Cecil: that's a VERY significant result. If I feed the dimensions of
W8JI's coil into Equation 32 in the Corum Bros paper it predicts an
axial Velocity Factor of 0.033. That would equate to a time delay of
24.7nS across the 10" long coil !!!!

Regards,
Steve G3TXQ

Let's see how well the principles involved are understood.

What is the delay through a physically very small toroidal coil with the
same inductance as the solenoidal coil? Why?
As in a coil wound on a toroidal magnetic core? or a air cored solenoid
bent in a circle?