[Lowfer] Coil question???

Ralph Hartwell [email protected]
Tue, 12 Feb 2002 22:58:28 -0600


> Off the top of anyone's head, does anyone know about how many turns of
#14
> or #12 THHN copper it would take to get about 2.5mh??? This will be
wound on
> a five-gallon pail if I don't get the real coil/variometer built by
this
> weekend or more like Friday afternoon. I can probably bang out the
> coil/variometer on Saturday afternoon.

Ya' can't do it on a single pail, even with #14 wire.  I just built a
nice loading coil and variometer today, but it required two 5 gallon
Home Depot paint pails fastened bottom-to-bottom and wound from end to
end with 500' of #14 THHN wire to get to 2.75 mH.  I tapped the coil so
that each tap was slightly less than the amount of adjustment that the
variometer provided.  When I get some time off from work, I will start
on mounting it outside in my antenna tuning cabinet - IF it will fit!
That thing is bigger than I thought it would be.  I'll post pictures and
construction details on my web side before too long.

73,

Ralph   W5JGV / WC2XSR / 13

http://home.att.net/~shmrg

http://home.att.net/~ralph.hartwell