[Lowfer] coil guts

[Bill Ashlock]

Eric,

The AC resistance (loss) at these frequencies is approximately proportional 
to the wire diameter (not the area, as is the case at DC). You would have ~ 
2.5X increase in coil loss by using #22 instead of #14. That should be a 
significant portion of the total loss of the whole system.

Bill

>Thanks for your responses to whether the coil should be inside the metal 
>building or not.

>From the loading coils I've looked at on several web pages I've noticed
>many use 12 or 14 gauge insulated building wire.  I can get this stuff,
>but I'd have to buy it, which will add about a week to my schedule :(
>
>But I HAVE some smaller gauge wire I got about 30 years ago as a child.  A
>family friend who worked for the phone company gave it to me as I was
>always winding coils for electromagnets, playing with radios, etc.
>
>This phone company wire is smaller gauge -- about 22 -- tinned, and 
>insulated.
>
>It'd be nice if I could use this stuff because I probably have a couple
>thousand feet of it.
>
>Click here to see a couple of representative spools:
>http://www.nutstreet.net/radio/projects/lowfer/
>
>Any problem using this tinned/smaller gauge wire for my LF loading coil?
>
>Thanks again,
>Eric


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