Re: LF: Re: Re: Coil Winding, de VY1JA

[Warren K2ORS/WD2XGJ <k2ors@comcast.net>]

I should have pointed out in my last post that I realized the result through 
dimensional analysis:
the term   lxd^2 has dimesions of length cubed
in order for D to be in length units, the exponent of the above term must be 
1/3, not 1/4

--
73 Warren K2ORS/WD2XGJ
FN42hi


>  An article called Low Frequency Coil Q, by Bill Bowers, is reproduced in the
> > Low Frequency Experimenter's Handbook, Page 65
>
>   Be careful ! There is a typo in this article in the Low Frequency 
> Experimenter's Handbook.
>   The equation for D on p.66 reads:
> D = 6x[lxd^2]^1/4
>    If you use this equation you cannot reproduce the result shown in the 
> example.
>   The final exponent should be 1/3 not 1/4, the equation should read:
> D = 6x[lxd^2]^1/3
>
>
> --
> 73 Warren K2ORS/WD2XGJ
> FN42hi
>
>
> > 
> > >
> > > Anyway, if anyone can point Jay to Bill Bowers' articles, it would be
> > > appreciated.
> > >
> > > John Andrews
> > >
> > An article called Low Frequency Coil Q, by Bill Bowers, is reproduced in the
> > Low Frequency Experimenter's Handbook, Page 65
> > 
> > It probably lives on my system somewhere as an .rtf or.doc file so I can
> > send it as an e-mail attachment if anyone wants it.
> > 
> > Peter, G3LDO
> > 
> >