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RE: [TCML] still stuck at 36



I don't disagree that hyperbaric gaps work well, but I'd like to be clear on why.  Too often on this List, the word "quenching" is used incorrectly.  My measurements showed conclusively that hyperbaric gap losses were lower than in a sucker gap, but I made no attempt to measure actual quenching.  Quenching is unrelated to gap losses and refers to how many pri-sec energy trades occur before the gap extinguishes.  In fact, I think that typically, lossy gaps (at least multi-segment gaps) have superior quenching.  

So, have you seen evidence that actual quenching, as observed on a scope, was superior with the hyperbaric gap?  Was this with free-air streamers or grounded (connected) streamers?  Seems like a very difficult thing to accurately compare between two systems.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of DC Cox
> Sent: Tuesday, January 27, 2009 1:31 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] still stuck at 36
> 
> Bill:
> 
> What was your maximum spark before you used the hyperbaric sparkgap?
> 
> Also, put a variac on the vac. cleaner motor, and fine adjustment of the
> speed will increase your output even more.  Usually best output
> around 75% of the variac.
> 
> I know they work great.  They always increase your sec spark output
> dramatically which means we have been underquenching
> with most of our previous designs.
> 
> Dr. Resonance
> 
> 
> 
> 
> On Tue, Jan 27, 2009 at 5:50 AM, Bill Bohn <b.jbohn@xxxxxxxxxxx> wrote:
> 
> > I built the hyperbaric gap as described WOW!Now I get 44" I am using a shop
> > vac for suction.I am using 5 of the 6 strings of caps.I think I did some
> > damage
> >
> > To my 5-1/4 coil.Now I have a 6.625" secondary wound 26.5" 1060 turns. Top
> > load is 4.5x18 toroid and a 7" sphere.Seems best with the primary clamped
> >
> > At turn 5.The spark sounds somewhat eratic and choppy.IT will smooth out
> > some by adjusting the spark gap closer at the loss of streamer length .
> >
> > What is the method of measuring BPS?IT doesn't seem to sound right.The
> > coupling between primary and secondary is 0.I am going to put the 6 strings
> > of
> >
> > My mmc cap in but I think it will be best tuned at about turn 2 and become
> > even more erratic.
> >
> > I am getting positive results and thank everyone for all the ideas and 2
> > cents worth.
> >
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