RE: Trigger xfmr "grounding", and R-C protection networks

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

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Gary.Lau-at-compaq-dot-com>

Hi Luc:

I have to agree with you.  It was later pointed out to me that automotive
spark plugs often have resistive wires, so it's probably not affecting the
reliability or intensity of the sparks.  More likely it impacts
nanosecond-level delay or jitter - irrelevant in our application.

Regards, Gary Lau
MA, USA

>Original poster: "Luc by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<ludev-at-videotron.ca>
>I'm not sure this is making a big difference with tesla coil
>operation, if you want a nano second switching of the gap, like
>in UV laser, this is probably a good advice, but for tesla a
>little jitters is not a big problem.



>> Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Gary.Lau-at-Compaq-dot-com>
>> 
>> If I may respond to my own post, or maybe just think out loud...
>> 
>> Regarding the possible problem of having the trigger transformer current
>> passing through the 1-2Kohm NST protection network resistors, I found a
>> triggered spark gap application note from R. E. Beverly III & Associates at
>> http://www.reb3-dot-com/pdf/sg_appl.pdf, which specifically states:
>> "Under no circumstances should a resistor be placed in series with the
>> trigger plug."