RE: Vacuum/blast gap

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

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.