Re: [HBR] 85Khz IF Transf.

[WA5VGO]

I really can't comment on this. All of my transformers were 1st IF 
transformers and didn't have a tap. They are all marked 12011 and were, I 
believe for the R-11A.

73,
Darrell, WA5VGO





At 10:17 AM 12/11/2008 -0600, you wrote:
>Tnx for the info Darrell.
>
>One other question comes to mind here in that the transformers I have are 
>from an R23 and have tapped coils in the first and IF second cans.
>Was wondering if it would be better to modify the connections or use the 
>taps as they did in the R23.
>
>Tnx and 73,
>
>Tony
>
>
>--- On Thu, 12/11/08, hbrnut at suddenlink.net <hbrnut at suddenlink.net> wrote:
>
> > From: hbrnut at suddenlink.net <hbrnut at suddenlink.net>
> > Subject: Re: [HBR] 85Khz IF Transf.
> > To: "HBR Receiver List" <hbr at mailman.qth.net>
> > Date: Thursday, December 11, 2008, 8:41 AM
> > I used these in my first HBR (photos are on the HBR Web
> > Site). In mine, the transformers had 220 pF fixed capacitors
> > across the coils. By changing them to 110 pF, I brought them
> > up to 100 kc. They work very well. One small pitfall is that
> > the tuning range of the trimmer capacitors used in them is
> > very limit.
> >
> > 73,
> > Darrell, WA5VGO
> > ************************************
> > Visit the HBR Receiver Web Site with over 100 pictures of
> > receivers and
> > construction notes...... via http://www.qsl.net/k5bcq/
> > there is also a mirror (faster response)at
> > http://k5bcq.edebris.com/
> >
> >
> > Retrieve reflector archived data via
> > http://mailman.qth.net/mailman/listinfo/hbr
>
>
>
>************************************
>Visit the HBR Receiver Web Site with over 100 pictures of receivers and
>construction notes...... via http://www.qsl.net/k5bcq/
>there is also a mirror (faster response)at http://k5bcq.edebris.com/
>
>
>Retrieve reflector archived data via 
>http://mailman.qth.net/mailman/listinfo/hbr
>
>
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