Topband: bn73 cores

[CHARLES HUTTON]

Logan:

These cores are binoculars so there really isn't an opposite side.

Check out http://www.w8ji.com/core_selection.htm and scroll down to the 
bottom and you'll see a picture of a transformer wound for Beverages.


Chuck


>From: "Logan Dietz" <cdietz at swbell.net>
>To: "'Tom Homewood'" <w1to at adelphia.net>,"'linda doyle'" <ldoyle at gwi.net>, 
><topband at contesting.com>
>Subject: RE: Topband: bn73 cores Date: Fri, 22 Oct 2004 13:49:38 -0500
>
>Do you put the turns on the opposite sides of the core?
>
>-----Original Message-----
>From: topband-bounces at contesting.com 
>[mailto:topband-bounces at contesting.com]
>On Behalf Of Tom Homewood
>Sent: Friday, October 22, 2004 7:37 AM
>To: linda doyle; topband at contesting.com
>Subject: Re: Topband: bn73 cores
>
>Hi John,
>
>Two turns on the primary and 8 or 9 turns on the secondary. 9 turns will
>give you roughly 1012 for the secondary impedance.
>
>Eight turns will give you 800 ohms on the secondary, so pick which ever is
>closest.
>
>73, Tom, W1TO
>
>----- Original Message -----
>From: "linda doyle" <ldoyle at gwi.net>
>To: <topband at contesting.com>
>Sent: Tuesday, October 19, 2004 9:15 AM
>Subject: Topband: bn73 cores
>
>
>gentlemen: several people have asked me what the winding  data is for the
>bn73 cores when it comes to building pennants and flag antennas if someone
>knows would he or she please post it on this web I've never built either 
>but
>i'm sure someone who visits this site knows thanks John K1GUN.
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