slow-wave helical resonator

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gary Peterson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <glpeterson-at-tfcbooks-dot-com>

> > > . . . what is meant by a 'slow-wave' resonator? . . .

I would appreciate the list's critical comments regarding the accuracy of
the following definition:

slow-wave helical resonator
A resonant circuit consisting of a single-layer cylindrical inductor wound
in the form of a helix, usually including capacitive end loading.  The speed
of a wave disturbance along the axis of the helix is significantly less than
the propagation of an electromagnetic wave in free space.  A Tesla coil's
secondary and a magnifying transmitter's base-driven extra coil can both
behave as a slow-wave helical resonators, the latter propagating the wave at
around 17% the speed of light in free space.

Gary