Re: Seibt: Visualizing Standing Waves on a Resonator by Corona

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Kurt Schraner <k.schraner@xxxxxxxxxxx>

Hi Mark,

Tesla list schrieb:
> Original poster: Mark Fergerson <mfergerson1@xxxxxxx>
<snip>
>   This is utterly fascinating. I note that in the picture 1750b the 
> glowing zones appear to increase in brightness from bottom to top. Is 
> this due to current distribution in the grounded plate, or what?
>   Mark L. Fergerson

...well, I really don't know why. It may have to do with the spreading 
width of the corona wires from the coil, which was adjusted ~35mm at the 
bottom end, and ~26mm at the top end of the Seibt-coil, 'cause of avoiding 
sparking at the bottom end. But alternatively might have to do with some 
phase compensating effects of the up- and down the coil travelling waves, 
because of precision of tuning. This even seems more probable, because 
tuning for 7 glowing zones (=3 full waves) shows a weakly glowing zone at 
the _center_ of the coil. Would like to know why, myself!

Cheers, Kurt