Re: Can you have too much air through a SG? (fwd)

• To: tesla-at-pupman-dot-com
• Subject: Re: Can you have too much air through a SG? (fwd)
• From: Tesla List <mod1-at-pupman-dot-com>
• Date: Fri, 13 Feb 1998 21:15:36 -0700 (MST)
• Approved: mod1-at-pupman-dot-com

---------- Forwarded message ----------
Date: Fri, 13 Feb 1998 09:59:09 EST
From: FutureT-at-aol-dot-com
To: tesla-at-pupman-dot-com
Subject: Re: Can you have too much air through a SG? (fwd)

In a message dated 98-02-13 03:29:40 EST, you write:

<< > I've just built a R.Quick style cylindrical gap for my first coil,
 > using a 4" pipe and 22mm copper tubes, with a VERY powerful 9" EBM
 > centrifugal fan I had lying around, boxed up to route the air through
 > the PVC pipe. If I had a tennis ball handy, it'd probably float on the
 > airflow - seriously windy! 
 > Obviously you can never have too much cooling, but can excessive
 > airflow impair gap performance? - I'll be initially running 7KV at
 > about 30mA from a conventional (i.e. not neon) transformer , hopefully
 > 9KV when I can get a microwave tranny to put in series. 
 > Do I need to put a speed control on the fan?
  >>

Mike,

Yes, too much air can definitely degrade the coil's performance.
Some people call this overquenching, but that's not really what's
happening.  Instead too much air prevents the gap from firing steadily
in the first place.  How much air is needed depends on factors such
as the voltage, power level, gap construction, etc. 

John Freau

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