Re: [TCML] Odd VTTC Streamer Behavior

[futuret@xxxxxxx]

This is a common problem with VTTC's in staccato mode
when producing the single sword-spark.  If the timing
of the staccato trigger signal is not quite right it can
contribute to this.  Also the type of power supply
can affect this (how many level shift caps, etc).
Various tuning, coupling, grid-feedback issues,
etc., seems to affect it also.

It may help to sharpen
the breakout point, or raise or lower the breakout
point relative to the toroid, also.  The tip of your
breakout point may be burning and getting dull
and rounded.  Since the behavior seemed to occur
by itself, it may be due to the breakout point
rounding from burning over time.

John


-----Original Message-----
From: Phillip Slawinski <pslawinski@xxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Mon, 20 Oct 2008 5:43 pm
Subject: [TCML] Odd VTTC Streamer Behavior



Lately my VTTC has had some odd streamer behavior.  Streamer length
increases linearly when I turn the voltage on the variac up, until it
reaches about 90V and then the streamer forks into two shorter 
streamers.
This occurs when I have a low pulse rate in stacatto mode.  Has this
happened to anyone else?  Does anyone know what might cause this?
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