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Re: Coil success on first big run - but (help) safety gap fires alot!
Can you give me details on the size and shape of this tuning coil? I was
wondering how you attached it to the primary (I was envisioning one end of it
having a long 'leg') and what tapping arrangement you used for this inductor
itself (obviously strap is harder due to the smaller diameter). Sounds like a
good idea, avoiding having your high current wiring draped erratically around
your baseboard! (*bang* *pop* *whoops*).
Alex
Tesla List wrote:
> Original Poster: Hollmike-at-aol-dot-com
>
> In a message dated 4/21/99 5:34:00 AM Mountain Daylight Time,
> tesla-at-pupman-dot-com writes:
>
> > Just to say I've got my coil up and running and am working on tuning. I
> > >have got 29 inch sparks for 1000w in, so it's only a start. It was
> > >really beautiful once it got dark though! I was wondering how critical
> > >the tuning was - would say 1/2 a 1/4 turn adjustment on the primary make
> > >a lot of difference? I have it at 6.5 turns at the mo with a small
> > >topload (a garden soil riddler!). I may try going for the big 24 inch
> > >toroid tomorrow, but I will need to set up a stike rail before this.
> > >
> With so few turns, 1/4 of a turn could make a significant difference. My
> setup tunes at about 10 turns and is fairly sharp in tuning. I use a tuning
> coil for fine tuning it. It has 10 turns and measures about 1 uH, or about
> the equivalent of one outer turn if all 10 turns are tapped. I found this to
> be much easier than trying to tap around the primary coil.