Ross-O's VTTC update

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

Original poster: "Ross Overstreet by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ross-o-at-mindspring-dot-com>

Hi Guys,
Added more stuff to the page.  http://users.better-dot-org/roverstreet/  then
click on "tube coil"

Of particular interest is:
(1) 3 new pics of the coil in action.  Be sure and look at "helix_arc.jpg".
(2) a bunch of new measurements
(3) performance data with the reworked primary and grid coil
(4) link to http://frank.nostalgiaair-dot-org that has incredible original EIMAC
PDF data sheets.

Need to figure out:
(1) grid circuit still not optimal.  I(g) is looking more reasonable but the
coil still won't run good unless I completely short the grid leak C.  See
page for more details.

(2) I played around a bit with calculating the sideband freqs and then
measuring them by looking at the resonant freq of the primary with the
secondary in place.  The measured upper freq didn't match my calculations.
Any ideas?  Forgive the lack of details in this post.  I'm keeping bandwidth
low by putting all the details on the web page.