Re: Vacuum/blast gap

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

Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>" <srward16-at-hotmail-dot-com>

I was running full vacuum.  Maybe thats my problem.  How do you suppose i 
can make it leak?  Drill some holes??  The vacuum does seem a bit strong.  
Unfortunately, i ditched that gap already( i could make it again in about 20 
minutes...).  I went with the RQ but with a elaborate design with the vac 
motor.  Im using the motors blowing & sucking power!  I have yet to run it 
again with this new gap.  We will see...

Steve Ward.


>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: Vacuum/blast gap
>Date: Sun, 15 Sep 2002 19:29:56 -0600
>
>Original poster: "Jonathan Peakall by way of Terry Fritz 
><twftesla-at-qwest-dot-net>" <jpeakall-at-madlabs.info>
>
>Steve,
>
>Are you running the gap at full  vacuum? I found my Lau type gap worked 
>best
>when I limited input voltage to the vac motor to around 40V. I have heard 
>of
>others just letting the vac system "leak" to lower pressure without a
>variac.
>
>HTH,
>
>Jonathan Peakall
>
>----- Original Message -----
>From: Tesla list <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Sunday, September 15, 2002 3:01 PM
>Subject: RE: Vacuum/blast gap
>
>
> > Original poster: "Dave Hartwick by way of Terry Fritz
><twftesla-at-qwest-dot-net>" <ddhartwick-at-earthlink-dot-net>
> >
> > I use a similar gap, but the air is blown through and into the gap 
>instead
> > of being sucked out.
> > It blows away my RQ/TCBOR gap, particularly at higher power levels.
> >
> > You could try blowing instead of sucking, but Gary's original
>configuration
> > seems to be an excellent gap. It is a mystery.
> >
> >
> > Original poster: "Steven Ward by way of Terry Fritz 
><twftesla-at-qwest-dot-net>"
> > <srward16-at-hotmail-dot-com>
> >
> > Hi all,
> >
> > I recently attempted to reproduce Gary Lau's sucker gap.  I bought the
>same
> > vacuum motor.  My meter claims 3A for the motor, yet Gary claims about
> > 10A?!?!  Thats not what im getting at.  My problem is that this gaps
>stinks!
> >   Of course, i could have made it differently, but it doesnt perform
>nearly
> > as well as me RQ gap.  Though, i must say, it makes the coolest noises
>when
> > you turn off the coil, and you hear all kinds of pitched wistling from 
>the
> > motor.  It sounds real sci-fi, like a major shut down.  Im running with 
>a
> > 15/120 PSU.  Im wondering it anyone has used this type of gap, but with
>air
> > blowing outward??  So basically, i need some ideas, or reccomendations, 
>on
> > what i should do.  Sould i keep the RQ and put the vac motor on it??  Or
> > should i make the single gap, but blow out the arc, rather than suck it
>up?
> > All opinions are wanted.  Thanks,
> >
> > Steve Ward.
> >
> >
> >
> >
> >
> >
> >
> >
> >




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