[Lowfer] Definitely did something wrong !! " I think "

[Mike-WE0H]

oops!!!


I run my variometer in the middle of the loading coil and it is wired in 
the middle of the coil. So picture a bit of loading coil, then the 
variometer is wired in series, then the rest of the loading coil. Put it 
back the way you had it. It worked, it doesn't work now according to 
your post.

Sometimes things are best left alone. If you want to experiment, build a 
second coil/variometer and leave the original alone. Lesson learned the 
hard way huh? Now bend over and tell the wife to give you a swift kick 
in the ass...hi hi...OK, all is well once again.

Mike
WE0H




Andy - KU4XR wrote:
> Hey all:
>
> Well I thought I would try re-do'ing my Variometer, and boy
> is it out of whack now !! Mistake #1 ( I knew better, but did
> it anyway ), I made too many changes to the setup at one time.
> So I don't know which one killed my output. All together I;
> drilled holes in the vari-coil coffee can, and the paint bucket.
> I took some windings off the vari-coil ( had almost 1 mH on it )
> I figured there would be more loss in the smaller coil form, so
> I wound it to around 580 uH. Then I moved the fixed coil from the
> top of the paint bucket down to the bottom, thinking that the
> longer windings would be less loss than the shorter windings.
> ( The paint bucket is tapered ). All the windings now go over
> the newly drilled holes.
> My one big area of concern is moving the fixed coil from the
> top, down to the bottom, with regards to the position of the
> vari-coil inside the bucket. With the fixed coil at the top, the
> vari-coil was centered inside the fixed coil windings, however;
> when I moved the fixed coil to the bottom of the bucket, now the
> vari-coil is situated where the bottom winding is right at the
> top of the fixed coil winding. This may be where my huge drop in
> power came from, I'm just not sure, SO; I would ask for any help
> on that issue. 
>
> " Does the vari-coil need to be inside the fixed coil windings ?? "
>
> " Would it be best to tune the transmitter side of the coil, 
>   or the antenna side ?? "
>
> My output dropped to 1/3rd after re-do'ing the variometer, And
> right after ant. mods, getting the best output I've ever had !!
> Kinda made me sick yuh know ??
>
> 73 guys, hope your weekend is a good one.
>
>
> Andy - KU4XR - EM75xr - Friendsville, TN.
> LOWfer Beacon " XR " @ 184.322 KHz ( QRSS-60 )
> Coordinates:  N:  35* 43' 54" - W:  84* 3' 16"
> http://www.myspace.com/beaconxr