[Lowfer] Completed a worthwhile project today

[Paul Daulton]

Andy check out Dave Bixlers coil at www.lowfer.us . Picture is worth 
many thousands of words. 
Paul

Quoting Andy - KU4XR <ku4xr at yahoo.com>:
>
>  Good day Jay:
>
>  Well the ground is still very much saturated, but not
>  supposed to rain this week, so I expect to see it change
>  as things dry out. 
>  Right now it has settled in at 26.8 V @ .040 A for 1.072 W
>  The RF current is up to 190 mAmps. It will peg the meter
>  soon, it only goes to 200 mAmps. I still haven't got to check
>  the accuracy of the Ammeter yet, ( worked on another project )
>  hi !
>  Present readings indicate antenna resistance to be at
>  29.69 Ohms. 
>
>  Thanks for the tips you have given, and the calculations. 
>
>  Major projects ahead include; getting the antenna as high
>  as I can go, which is about 6 more feet. And rewinding the
>  coil with larger wire. 
>
>  Question ::: I'm not using any type of matching transformer,
>  or tapping the coil for thr PA. When I rewind with #14
>  wire, do I need to put tap points on the PA side ??
>  Right now I'm just going straight from the output filter
>  into the coil. 
>
>  73 to all :::
>
>  Andy - KU4XR - EM75xr - Friendsville, TN. 
>  LOWfer Beacon " XR " @ 185.29866 KHz ( QRSS-60 )
>  Coordinates:  N:  35* 43' 54" - W:  84* 3' 16"
>  http://www.myspace.com/beaconxr
>
>
> > --- On Mon, 11/2/09, jrusgrove at comcast.net
> > <jrusgrove at comcast.net>
> > wrote:
> >
> > > From: jrusgrove at comcast.net
> > <jrusgrove at comcast.net>
> > > Subject: Re: [Lowfer] Completed a worthwhile project
> > today
> > > To: ku4xr at yahoo.com
> > > Date: Monday, November 2, 2009, 6:07 AM
> > > Andy
> > >
> > > Sounds like you're making good progress. 
> > >
> > > Now that you have a good adjustable power supply what
> > are
> > > you seeing for voltage and current for 1
> > > watt draw from the power supply? Inquiring minds want
> > to
> > > know!
> > >
> > > Jay
> > >
> > >
> > > ----- Original Message -----
> > > From: "Andy - KU4XR" <ku4xr at yahoo.com>
> > > To: <lowfer at mailman.qth.net>;
> > > "Part-15 Yahoo" <part15 at yahoogroups.com>
> > > Sent: Sunday, November 01, 2009 6:22 PM
> > > Subject: [Lowfer] Completed a worthwhile project
> > today
> > >
> > >
> > > > Hi all:
> > > >
> > > > I constructed a variable voltage control for the
> > PA
> > > voltage on
> > > > " XR " today. MAN what a difference !! Once I
> > found
> > > the
> > > > " sweet spot " that the transistors wanted from
> > the
> > > Osc. drive
> > > > level and the PA voltage, Everything settled
> > down, and
> > > appears
> > > > to be happy now. No jumpy current, RF mAmps pops
> > right
> > > up and
> > > > stays solid. The only fluctuation is when the
> > wind
> > > blows the
> > > > ant. then it will move around a small bit. 
> > Nothing
> > > like before
> > > > though. Tuning is not totally erratic, but nice
> > and
> > > smooth when
> > > > I twist the tuning shaft on the Variometer. Now
> > if the
> > > ground
> > > > will dry up some, I might be able to get some RF
> > up
> > > the ant. 
> > > >
> > > >
> > > > Andy - KU4XR - EM75xr - Friendsville, TN. 
> > > > LOWfer Beacon " XR " @ 185.29893 KHz ( QRSS-60 )
> > > > Coordinates:  N:  35* 43' 54" - W:  84*
> > > 3' 16"
> > > > http://www.myspace.com/beaconxr
> > > >
> > > >
> > > >
> > > >
> > >
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> >
> >
> >
> >
>
>
>
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Paul Daulton K5WMS
beacon WMS 187.492 khz qrss30/slow 24/7
Jacksonville,Ar 72076
em34wu