Terry,
If you have the inclination at all, why not build one! It's really not all
that hard to do. Quite a few years ago I did that, and the thing worked
pretty well. I got the info from a QST article from back in the 90's. The
hardest part might be finding a proper capacitor for tuning, but if your
junk box has much in it, you may have that problem solved. I complicated
things a bit by adding a small low voltage motor to turn the capacitor. You
need to use one that has a very low rpm rate for that, but they are
available. Not counting the motor, the whole thing cost lest than $10 to
build. I used copper tubing, but you could use coax shield. I recommend
copper tubing.
Even though band conditions are rather poor these days, you can still do
good things with a mag loop--especially on 20 meters. You may not be able
to run that amp through it, unless you get a pretty husky capacitor, but 15
watts is not usually a problem. You just might be surprised at what you can
do with one of these things. They are fun to play with.
73,
Dave W7AQK
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