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Re: Bert Pool's big coil
From: Greg Leyh[SMTP:lod-at-pacbell-dot-net]
Sent: Tuesday, July 29, 1997 12:48 PM
To: Tesla List
Subject: Re: Bert Pool's big coil
Bert Pool wrote:
> > > We already have the coil form for a 28.5 inch diameter secondary. We
> > > have 70 pounds of the 200+ pounds of 10 gauge enamel wire with which
> > > we will wind it. We'll start with the 8 foot toroid and go from there.
> >
> > Thumbs up! You're not going to operate _that_ in your front yard, are you?
> > BTW, what is the proposed winding length on the 28.5" secondary?
>
> As a matter of fact, we probably will run it out in front. We've
> taken a tape measure and if we set up where my driveway meets
> the street, and supposing that we could produce 32 foot sparks (quite
> a stretch, I admit), then we'd hit both the front of the garage and a
> metal light pole across the street simultaneously. That would be
> awesome, indeed.
Gonzo! How are your neighbors about all of this? Are they into it?
Hitting that metal light pole may make the utility company sad, however...
You may need to start worrying about the noise hazard from the output streamers,
as the noise pressure seems to increase with the square of the arc length.
> The length of the 28.5 inch coil will be three times its diameter, or
> 85.5 inches in length.
You'll definitely need to put that one on a pedestal to get max arc length!
Welcome to the joyous world of 'forklift coiling'.
-GL