[TowerTalk] 40 meter beam
Gedas
w8bya at mchsi.com
Sun Sep 27 17:27:38 EDT 2020
If it will be of any help I seem to remember measuring all 4 of mine and
got an average value of ~13.8 uH.
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 9/27/2020 3:57 PM, Jim Thomson wrote:
> Date: Sat, 26 Sep 2020 21:10:47 -0400
> From: <john at kk9a.com>
> To: <towertalk at contesting.com>
> Subject: Re: [TowerTalk] 40 meter beam
>
> <I believe Cushcraft uses 68 turns of 12 AWG wire. There are much more
> <efficient loading coil designs that are also more durable.
>
> <John KK9A
>
> ## https://www.qsl.net/ve6wz/CC_coil.html Just about anything is better than 68 turns of 12 gauge magnet wire..with turns butted tight..
> The latest version of the coil software by k6sti is called 3.95 http://ham-radio.com/k6sti/ scroll to bottom of left side of page.
> Coil Inductance and Q Calculator 3.95
>
>
>
> .75 inch OD aluminum tubing, like 3003 is very easy to work with. Mcmaster carr sells it, and other sizes.
>
> Jim VE7RF
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
More information about the TowerTalk
mailing list