RE: Rotary Spark gaps (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 3 Aug 2007 12:42:27 -0600
From: S&JY <youngs@xxxxxxxxx>
To: 'Tesla list' <tesla@xxxxxxxxxx>
Subject: RE: Rotary Spark gaps (fwd)

RSG Builders,

There are other materials than G10 that can be successfully used for RSGs.
Electrical-Grade Fiberglass (GPO3) works very well, has the needed strength
and electrical properties, is easier to machine, and costs less than G10.
It is available from McMaster-Carr:  Look up their stock number 8549K47 for
an example.

--Steve Y.

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx] 
Sent: Thursday, August 02, 2007 10:13 PM
To: tesla@xxxxxxxxxx
Subject: Re: Spark gaps (fwd)


---------- Forwarded message ----------
Date: Thu, 02 Aug 2007 22:37:24 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: Spark gaps (fwd)

Matthew,
     If the thought of using "machined" G10 scares you a little (I don't 
have machines, so I find it scary myself) consider building a propeller gap,

like these.
http://www.tb3.com/tesla/sparkgaps/index.html
These are the type of gaps I use, and the only machine I need is a drill and

a saw (no lathes or mills).  They work good for me, and should also work 
good for you (although I have never tested the two side by side).  Either 
way, no static gap is ever going to be as good for handling high power as a 
really well made rotary (I got huge increases when I switched, despite the 
fact I also greatly reduced my power input.  I should also mention my rotary

is not perfect, and it still works far better than all the other gaps I 
tried).  Good luck.
Scott Bogard.


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: Spark gaps (fwd)
>Date: Thu, 2 Aug 2007 20:08:04 -0600 (MDT)
>
>
>---------- Forwarded message ----------
>Date: Thu, 02 Aug 2007 02:20:24 -0700
>From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: Spark gaps (fwd)
>
>Hi Matthew,
>
>I concur with what D.C. has proposed here. If you want a "great spark
>gap", do it right! A G10/tungsten gap with a well balanced machined disc
>and large enough tungsten electrodes for the power applied is important.
>Anything less will suffer greater losses. You can use tungsten tips or
>pure tungsten rod stock (both are good). If your looking for a clear
>winner, this is it.
>
>Take care,
>Bart
>
>
> >A good RSG is required around 5 kVA and upwards.
> >
> >With 5-12 kVA run 1/2" dia. brass feedthrus, 1.5 inches long, with
> >replaceable 1/2" dia. tungsten tips.  Stationary electrodes are 1 inch 
>dia.
> >tungsten, screw-in type.  2 x 2 inch dia brass block as stationary 
>holders.
> >12" dia. x 1/2 inch G-10 rotor.   10 electrodes 3450 rpm. 1/2 HP motor.
> >
> >above 12 kVA, run 1" dia. brass feedthrus, 2.0 inches long, with 
>replaceable
> >screw-in 1" tungsten tips.  Stationary electrodes are 1.5 inch dia..   3 
>x 3
> >inch dia. brass block heatsinks as stationary holders.  18" dia. rotor x
> >1/2" G-10.  10 electrodes 1725 rpm., 1HP motor.
> >
> >
> >
> >Dr. Resonance
> >Resonance Research Corp.
> >www.resonanceresearch.com
> >
> >
> >----- Original Message -----
> >From: "Tesla list" <tesla@xxxxxxxxxx>
> >To: <tesla@xxxxxxxxxx>
> >Sent: Thursday, August 02, 2007 11:16 AM
> >Subject: Spark gaps (fwd)
> >
> >
> >
> >
> >>---------- Forwarded message ----------
> >>Date: Thu, 02 Aug 2007 11:09:45 -0500
> >>From: Matthew Boddicker <shmerpleton_town@xxxxxxxxxxx>
> >>To: tesla@xxxxxxxxxx
> >>Subject: Spark gaps
> >>
> >>This is Matthew Boddicker.
> >>
> >>Over the past year I have seen many different types of spark gaps and 
>I'm
> >>going to take on a large project that requires a very good spark gap. 
>What
> >>is the best spark gap? If there isn't a clear winner then what
> >>circumstances
> >>would justify which kind of spark gap?
> >>
> >>Thanks everyone!
> >>
> >>_________________________________________________________________
> >>Learn.Laugh.Share. Reallivemoms is right place!
> >>http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>

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