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RE: Smooth critical streamer?
Hi Barry,
If you are referring to just the cowmail site,
branching seldomly occurred (2.45J), attributable perhaps
to 'critical damping' achieved with the more stable arc load
impedance over the glass surface as in the vertical arc photo.
There was no film, these were captured with a D300 Olympus 1024x768.
There are faint branches the digital camera misses
(esp when I doubled energy to 4.9J which over the 40"
plastic poster board, produces lots of branching)
(D300 captures the high intensity power arcs best)
However my Panasonic VHS-C gets most of the faint branches just fine !
I 'like' the clean power arc picts so they are more frequently selected/shown.
Scope shots were in the 2.45J cfg.
Look carefully, there are branches in two of the picts
on TClist site (4.9J tests)'branch' in filename.
I have many more picts of captured branches particularly
when a power arc does not result - the energy available
dissipates into multiple branches.
Regards, Dale
-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Tuesday, August 01, 2000 4:05 PM
To: tesla-at-pupman-dot-com
Subject: Smooth critical streamer?
Original poster: "B2" <bensonbd-at-erols-dot-com>
Hi Dale, All,
I looked at all of your streamer photos and found no branches. I
looked at your output current waveform and see that it appears to be nearly
critically damped. Do you see faint streamer branches that are not
recorded on the film?
> Original poster: "Dale Hall" <Dale.Hall-at-trw-dot-com>
> http://www.cowmail-dot-net/dalehalldctc/
> http://1071737050/site/TCList/09balPwr%2B2branch37inGud.jpg
> http://1071737050/site/TCList/12balPwr%2B3br35inGud.jpg
> http://1071737050/site/TCList/15balPwr37in.jpg
Cheers,
Barry