Gents,
Thanks for the on & off list replies. It appears the schematic has
lied saying the choke is 60uH, one can only assume why. What does
exist is the dimensions I mentioned below. I'm assuming as long as I
have the same number of turns I can use 22 instead of 23 Gauge wire
and have about the same uH and it will be about the same uH. Unless I
hear otherwise, that's what I'm going to do.
Wish I had the smarts I used to have when I was a teenager...
heh...
Gary
KA1J
> Gary,
>
> To get 60uh on a .676" dia form you'll need a close-wound
> coil, 45 tpi, about 3" long. That per my ARRL LCF/Coil-winding
> Calculator.
>
> 73,
> Charlie, N0TT
>
> On Sat, 21 Feb 2009 14:21:35 -0500 "Gary Smith" <Gary@doctorgary.net>
> writes:
> > Hi,
> >
> > For you math whizzes out there (math is not my strong point)...
> >
> > I need 60uH for a plate choke.
> >
> > The existing coil apparently uses 23 guage wire and the coil form is
> >
> > .676" OD. There are 45 turns per inch and the length of the windings
> >
> > on the coil form is 4.052" long.
> >
> > Accdording to wikipedia
> >
> > http://en.wikipedia.org/wiki/American_wire_gauge
> >
> > My wire measures .022" so acording to the chart, I call that 23
> > gauge. Radio shack has enameled wire but the closest guage is 22
> > Gauge and that measures .025" which also jives with the chart.
> >
> > I don't know how many turns of the 23 guage on this coil form will
> > give me 60uH. Can anyone help me out on this?
> >
> > Thanks,
> >
> > Gary
> > KA1J
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> >
> >
>
>
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