[AMRadio] 100 microhenry inductor


bcarling at cfl.rr.com bcarling at cfl.rr.com
Wed Sep 21 21:35:51 EDT 2005


Hmmm, shunt feed on a tower usually only requires a series 
capacitor.

However, if you DO need an inductor this would NOT be a good 
idea - using a small slug-tuned core type of coil!

On 21 Sep 2005 at 8:32, Barrie Smith wrote:

> I don't know if slug tuning would work.
> 
> The coil, as I see it, would be something close to 70 turns #8 wire, wound 
> on a 4" form, length unkown, as yet.
> 
> It's to be used as part of a pi network for a 160M shunt-fed tower.
> 
> I can make one.  I just became curious, while thinking about it, if there 
> was such a thing as a 100 microhenry inductor.
> 
> I think Colin's idea of part fixed and part variable is well worth 
> considering.
> 
> 73, Barrie, W7ALW
> 
> ----- Original Message ----- 
> From: <bcarling at cfl.rr.com>
> To: "Discussion of AM Radio" <amradio at mailman.qth.net>
> Sent: Wednesday, September 21, 2005 3:58 AM
> Subject: Re: [AMRadio] 100 microhenry inductor
> 
> 
> > Can it be slug tuned? How many do you need?
> >
> > I may have some that would work.
> >
> > On 20 Sep 2005 at 19:39, Barrie Smith wrote:
> >
> >> Hello All:
> >>
> >> For an antenna project, I have need for a 100 microhenry adjustable 
> >> inductor.
> >>
> >> I can wind one, and provide taps throughout.  However, I'm wondering if 
> >> there is such a thing as a 100 microhenry rotary inductor.
> >>
> >> And, if there is, where would I find one?
> >>
> >> 73, Barrie, W7ALW
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> 
> 
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