Re: Small coil questions?

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

Original poster: Karl L <karl-at-coolbluesky-dot-com> 

I'm sorry to hear that things are not going the way you hoped.  But
implying that Dan's coil might not have hit 14 inches is not going to
help anyone, particularly yourself.  Part of the fun of coiling is
learning from your own mistakes, and the experience of others.  You may
need to reconstruct your coil or modify more parameters before you get
decent results.

Regards,

Karl L.

On Sat December 20 2003 10:31 am, Tesla list wrote:
 > Original poster: "Kreso" <kreso.bukvic-at-kc.htnet.hr>
 >
 > Affcorse i tried tunning it just wont create good spark. At 4.7 kv 67
 > ma i should get atleast 50 cm sparks. But it aint gonna happen im
 > skepitacal at your 14 inches Dan, also you guys brag yourself in the
 > net but in live it is really diffrent.
 >
 >
 >
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Saturday, December 20, 2003 2:30 AM
 > Subject: Re: Small coil questions?
 >
 >  > Original poster: dhmccauley-at-spacecatlighting-dot-com
 >  >
 >  > Your coil is not in tune.  As the primary capacitor increases, the
 >  > amount
 >
 > of
 >
 >  > inductance (or number of turns) required for resonance at your
 >  > operating frequency
 >  > will decrease.  You need to change the primary tap when changing
 >  > capacitor sizes.
 >  >
 >  > Dan
 >  >
 >  >  > Well i finished the coil today. I overdrived the nst to 67 mA. I
 >  >  > tried
 >  >
 >  > using
 >  >
 >  >  > 33 nf mmc i can tune coil and get 8 cm sparks. When i tried 60 nf
 >  >  > i
 >
 > cannot
 >
 >  >  > tune coil 2 cm arcs, then i tried LTR 90 nf mmc nothing only mm
 >  >  > or so
 >  >
 >  > spark?
 >  >
 >  >  > What is going on?