Re: [IRCA] Source of antenna wire

["Steve Ratzlaff" <steveratz@xxxxxxxxxxxx>]

I ordered the same 500' roll after Kevin told me about it last week, the 
same day or the day after Kevin ordered his; my wire arrived today via UPS. 
(The seller, Buy.com is in Fremont, CA, the San Francisco Bay, CA area.)
Incidentally the Sterilite #1693 crate I bought at Wal-Mart is not the same 
construction as Kevin's Sterilite #1692. It can't be used quite the same way 
as detailed in Kevin's Crate Loop article. Due to the holes in the side 
protruding out, the windings can't be placed that way but must be wound 
around the top, bottom and sides of the crate. The overall dimensions are a 
little smaller, 10.25 x 16.75 inches (54 inches circumference). Today I 
separated 125 feet of my 18 gauge speaker wire into two pieces (a tedious 
job....) and am in the process of figuring out how many turns are needed. 
One has to decide what variable capacitor will be used, and its capacitance, 
to determine the approximate inductance the loop should be wound for. The 
open frame larger 365 pF capacitor (like Kevin used in his Crate Loop 
article) take one value of inductance; the smaller plastic dual-section 
polyvaricon caps take another value. Eventually I'll get it all figured out 
for this particular crate. So far, 27 turns gives 327 uH; 26 turns 305 
uH--that's as far as I've gone for today.
Steve

(Every air core loop I've ever wound, balanced or unbalanced, the smaller 
loop always had better, sharper nulls than the larger loop....)


----- Original Message ----- 
From: <satya@xxxxxxxxxxxx>
To: "Mailing list for the International Radio Club of America" 
<irca@xxxxxxxxxxxxxxxx>
Sent: Friday, January 09, 2009 6:06 PM
Subject: [IRCA] Source of antenna wire


> Hi Dave/all:
>
> I recently ordered a 500' roll of 18-gauge speaker wire from Amazon for
> $31.99 delivered.  That was about 10 bucks cheaper than anything else I
> could find on eBay, etc.  The seller, BuyNow, shipped the next business
> day and has good feedback, and UPS claims it will be here today. So, it's
> 1000' after I get around to pulling it apart, unless I use some of it used
> as-is for power leads, speaker wire, etc.
>
> It's "Petra Bulk Speaker Wire Spool - 500ft - Clear"
>
> http://www.amazon.com/gp/offer-listing/B001FBGUXY/ref=dp_olp_1?ie=UTF8&qid=1231021087&sr=1-1
>
> There are also 1,000' rolls available.
>
> 73 - Kevin S
> Bainbridge Island, WA
>
>
> > 1. Where would be a good source of 16 or 18 ga single conductor,
> > stranded wire?  Since I'm not very handy I don't hang out at Home Depot,
> > Menards or Lowes :) but I'm sure that type of store would be a best bet.
> > How much would 120' or so run?

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