Re: VTTC provisional results

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

Original poster: "Herwig Roscher by way of Terry Fritz <twftesla-at-uswest-dot-net>" <herwig.roscher-at-gmx.de>


John Freau wrote:

> My guess is that the coil is maxed out for filtered DC operation. 

John,

Neither the tube nor the tankcap nor the primary coil nor the 
secondary coil get extremely hot. There are no signs of secondary 
coil breakdowns. I have got plenty of power. Why do you think that 
there is no space for improvements? Where are the borders?

> mentioned that there are individual streamers.  This makes me
> think that the filtering is not very good.
- David Trimmell suspected the same. As soon as I have 
reassembled the parts of my system I shall parallel my 15µF/10 
kVdc filter cap by another one and check for improvements.

> I forget if you said you're using some sort of staccato or pulsing 
action?
- If there was any pulsed action other than driving the tube in C-
mode, it is not intended. I am a little bit afraid to check it by scope 
as I do not want to fry it in this environment. How do you perform 
your tests? Are there any special precautions to be considered?
 
> The sparks from filtered DC VTTC's tend to be about half the length
> of raw AC VTTC sparks.
- These are clear words, John. Thank you. The "only" thing I have 
to manage still, is to find the power drawn from the wall (my 
system is operated from a 3 phase tranny).

Regards,

Herwig