That's great, Jim! Let me know how it plays! 73, Charlie, K4OTV
-----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of James Rodenkirch Sent: Thursday, August 22, 2013 3:00 PM To: Charlie Cunningham; 'Mike Waters'; 'topband' Subject: Re: Topband: Two 2:1 transformers to choose from!! When time permits, Charlie, I will do just that! Almost done with everything up to the two boxes with the switchable components - resistor, xfmr - as I await the xfmr(s) arrival. Outta be listening by Sunday morning!! > From: [email protected] > To: [email protected]; [email protected]; [email protected] > Subject: RE: Topband: Two 2:1 transformers to choose from!! > Date: Thu, 22 Aug 2013 14:41:40 -0400 > > Well, Jim > > Since you wound both transformers, why not try them both, and see if you > can measure any difference? I' guessing you won't see much! > > 73, > Charlie, K4OTV > > -----Original Message----- > From: Topband [mailto:[email protected]] On Behalf Of James > Rodenkirch > Sent: Thursday, August 22, 2013 2:00 PM > To: Mike Waters; topband > Subject: Re: Topband: Two 2:1 transformers to choose from!! > > Thanks, Mike - will try the 2:3 ratio one first! > > > Date: Thu, 22 Aug 2013 10:21:14 -0500 > > From: [email protected] > > To: [email protected]; [email protected] > > Subject: Re: Topband: Two 2:1 transformers to choose from!! > > > > P. 7-69 of Low Band Dxing (5th ed.) by ON4UN says a maximum of 4 turns on > > the low-Z primary for binocular cores. It might work, but there are other > > turns ratios you might try. > > > > Here is a list of turns ratios for those cores I made: > > http://www.w0btu.com/Binocular_core_turns_ratios.pdf > > If you get a 500 Server Error message, contact me directly and I'll e-mail > > it to you. > > > > 73, Mike > > www.w0btu.com > > > > On Wed, Aug 21, 2013 at 3:49 PM, James Rodenkirch > <[email protected]>wrote: > > > > > I received enuff "info" and thoughts to know I'll utilize the 5:7 > winding > > > version. > > > > > _________________ > > Topband Reflector > > _________________ > Topband Reflector > _________________ Topband Reflector _________________ Topband Reflector
