Re: lower limit to break rate

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

Original poster: "jimmy hynes by way of Terry Fritz <twftesla-at-qwest-dot-net>" <chunkyboy86-at-yahoo-dot-com>


i was worried about the cooling thing. i guess i'm probably near the dip in the
curve where either increasing or decreasing the break rate would help. i would
have to either make a new toroid or add some primary turns(not just move the
tap) to get it to tune with lower capacitance. thats why i was asking first 

 Tesla list 
>
> wrote:  
> Original poster: "Bert Hickman by way of Terry Fritz " 
>
> Jimmy,
>
> A low breakrate, down to about 60 BPS, can provide good performance 
> However, too low a breakrate is not - ten BPS is too low to permit 
> sparks to grow from bang to bang since the heated channel from the 
> previous bang dissipates before the NEXT bang occurs. If you are also 
> seeing multiple streamers at this low break rate, your toroid's Radius 
> of Curvature may be too small. Before changing it, I'd suggest trying 
> the existing setup with a faster break rate. If you still get multiple 
> streamers, then increase the ROC (and possibly the outer diameter as 
> well). 
>
> Best regards,
>
> -- Bert -- 
> -- 
> Bert Hickman 
> Stoneridge Engineering 
> "Electromagically" (TM) Shrunken Coins! 
> http://www.teslamania-dot-com 
>
> Tesla List wrote: 
> > ! 
> > Original poster: "jimmy hynes by way of Terry Fritz "
>
> > 
> > from what i've heard, and according to johns more complicated formula, 
> > lower break rates are better .i guess i am pushing low break rates to the 
> > extreme with my coil. it runs at about 10bps with 24nf and a 15/20 ss neon 
> > sign transformer. my secondary is 2" by 12" and the toroid is 4"x12". the 
> > longest arc i have gotten is about 8". i am also getting multiple 
> > streamers. is my toroid too small? or did i just do a bad job making it? 
> > could low break rates a problem here? should i try a smaller toroid and 
> > less capacitance? i guess i could have just followed the "recipe for 
> > success", but that wouldnt be as interesting. 
> > 
> > JImmy
>
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> JImmy
>