Re: Biggg Coil running again

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 7/7/01 11:32:17 PM Eastern Daylight Time, tesla-at-pupman-dot-com 
writes:

> 
>    The 120 bps rotary had some arc follow around when wired in series with
>  the vacuum static gap using 2 gaps.  I increased it to all 5 gaps, and
>  output dropped to nill.   The static gap was bypassed all together, and
>  rotary follow around stopped, the output arcs brightened nicely.
>  

Kevin,

Congratulations on getting the hanger built, and all.   This is very
interesting about the rotary follow-around stopping when you eliminated
the series static gaps.  This is directly opposite to the common
belief that series gaps are needed to help quench the gap and
prevent follow-around.  It would seem, at least in some cases,
that the need or desireablity of the series gaps is yet another 
coiling myth.  It is significant that the series gaps not only didn't
help your coil, but made it worse.  I myself do not use series
gaps with my rotary, but I had thought they may be needed for
some higher powered coils.  Your results seem to suggest
otherwise.  The 120 bps breakrate may be helping things too
by letting the gap fire near the input zero-crossing.

Thanks for the report,
John Freau