[600MRG] Litz wire, anyone??
Laurence KL7 L
hellozerohellozero at hotmail.com
Thu Mar 2 01:38:54 CST 2017
I tried ex Decca Litz with 150ft spans and soon lost the Nylon overlay and the stands began breaking - given the Q on this 137 loop it started to de detune pretty quickly and reverted to parallel 6 and 4 tffn - it may have been better with protection but the Okie Cottonwoods were a lot more friendly than firs/pines here and Id never consider it here in AK, but never say never
thanks
Laurence
> On Mar 1, 2017, at 5:22 PM, k2ors <k2ors at verizon.net> wrote:
>
> I remember Bill Ashlock tried using Litz for a loop, it was very fragile and kept breaking, even when he stuffed it into a garden hose for protection.
>
>
>
> Sent from my Verizon, Samsung Galaxy smartphone
> -------- Original message --------From: Dave Riley <dave.riley3 at verizon.net> Date: 3/1/17 5:54 PM (GMT-05:00) To: 600mrg at w7ekb.com Subject: [600MRG] Litz wire, anyone??
> My imagination is running in overdrive right now.
> I have a hunk of Litz wire which contains 7 individual twists of 96
> pieces each of .010" diameter copper insulated wire which in this case
> works out to .0314 circular mils times 672 strands, all in parallel...
> This comes out to be the equivalent of a single copper conductor of
> almost 7" diameter...
> Could this be??
>
> Litz wire operating at 472khz calls for individual strands of #43 copper
> insulated..
> This piece at 10 thousandths single strand is more suited for 10 khz. or
> so...
>
> Do I dare a try of 500' of this stuff in a transmit loop??
>
> When should I wake up?? The bandwidth is about 1.6 khz. and said to be
> 98% eff. at this length...
>
> Gonna have to sharpen the slip stick...
>
> This all came about as I was thinking of the inefficient vertical with
> 3db of it's RF going directly to ground...
>
> Lost, DaveR /17
>
>
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