[HBR] modifying the 262kHz K-Tran IFs to 100kHz

[Peter Bertini]

I've amassed a few sets of 1682 kc half-lattice filter xtals from scrapped
Heathkit HR-10 receivers.
That means there's an equal number of scrapped 1682kc IFTs available from
those donor chassis's.
I think some CB sets used near 1600kc IFTs as well.  As info for other
scroungers building HBRs.

pete



On Sun, Mar 15, 2009 at 11:33 AM, <Hopperdhh at aol.com> wrote:

> Hi Nick,
>
> I was able to loosen the  coupling in an IF transformer by winding a few
> grounded turns of no. 22 solid  insulated hookup wire between the windings.
>  Just
> ground one end and leave  the other end floating.  This partially shields
> the
> windings from each  other.  You will need to experiment a little to see the
> effect.  The  transformers I modified were 1650 Kc from a business band FM
> set.
>
> Dan  K9WEK
>
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