He builds very high quality stuff, I have a few of his things..
Give him a call to discuss what you want, he takes all the time to ensure
you get what you want.
He makes all items himself and winds his own.
73-
W1JCW
John
--------------------------------------------------
From: "W5CPT" <w5cpt@bellsouth.net>
Sent: Thursday, August 20, 2009 5:17 PM
To: "Robert Thain" <g0hgw@yahoo.com>; <towertalk@contesting.com>
Subject: Re: [TowerTalk] Step-down balun 12.5-50ohm
> Robert,
> If you are looking to have the balun built got to:
>
> http://www.balundesigns.com/servlet/StoreFront
>
> He can build anything you want reasonably.
>
> I have no pecuniary interest in the company, just a satisfied user.
>
> Clint - W5CPT
>
> ----- Original Message -----
> From: Robert Thain
> To: towertalk@contesting.com
> Sent: Thursday, August 20, 2009 5:14 PM
> Subject: Re: [TowerTalk] Step-down balun 12.5-50ohm
>
>
> Hi,
> Yes exactly,
>
> I'm looking for 50ohm unbalanced to 12.5ohm balanced.
>
> Thanks
> Robert G0HGW
>
> (ps sorry I can't how to reply to a message)
>
>
>
> Message: 11
> Date: Thu, 20 Aug 2009 13:57:58 -0500
> From: "Perry - K4PWO" <k4pwo@comcast.net>
> Subject: Re: [TowerTalk] Step-down balun 12.5-50ohm
> To: "jimlux" <jimlux@earthlink.net>, <towertalk@contesting.com>
> Message-ID: <DFFC789D36F34153B3B0B427DC8E6730@svr>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Just flipping the balun might not work as the Hi-Z side is balanced and
> the
> Lo-Z side is unbalanced. Just the reverse of what he probably needs.
>
> 73 de Perry - K4PWO
>
> ----- Original Message -----
> From: "jimlux" <jimlux@earthlink.net>
> To: "Robert Thain" <g0hgw@yahoo.com>
> Cc: <towertalk@contesting.com>
> Sent: Thursday, August 20, 2009 13:48 PM
> Subject: Re: [TowerTalk] Step-down balun 12.5-50ohm
>
>
> > Robert Thain wrote:
> >> Hello,
> >>
> >> I'm looking to build a Step-down balun 12.5-50ohm ie input with 50ohm
> >> coax and output to 12.5ohm wire.
> >>
> >> Can any one point me in the right direction for a plan. I know they
> exist
> >> I've seen them for sale.
> >>
> >> I have bought a 1:4 50ohm - 200ohm balun, but I think I've messed up,
> >> its the "wrong way around".
> >> I hope I can use it for parts.
> >>
> >> Thanks
> >
> > both of those are 2:1 turns ratio. You just need to flip it around. For
> > your application, the coax (50 ohm side) goes to the winding with more
> > turns.
> > _______________________________
>
>
>
> _______________________________________________
>
>
>
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