[RFI] Can you combine two mixes?

[BOB WATWOSQQ]

Thanks for the  responses




*Best 73 de WA2SQQElmwood Park, NJ"The only dumb questions are those we
don't ask"*


On Tue, Dec 16, 2025 at 12:41 AM Tim Duffy <k3lr at k3lr.com> wrote:

> Hello Bob
>
> Putting cores with different mixes together in the same stack does not
> yield good results, but having two stacks of each mix, does work fine.
>
> I am using 3 cores each of #31 and #43 in a filter (along with a CORCOM AC
> line filter). The ferrite works just like you would hope - to broaden the
> frequency response of the choke filter.
>
> 73
> Tim K3LR
>
> -----Original Message-----
> From: RFI [mailto:rfi-bounces+k3lr=k3lr.com at contesting.com] On Behalf Of
> David Eckhardt
> Sent: Monday, December 15, 2025 10:08 PM
> To: BOB WATWOSQQ
> Cc: rfi at contesting.com
> Subject: Re: [RFI] Can you combine two mixes?
>
> This question has been asked several times before.  The answer is NO.
>
> Dave - WØLEV
>
> On Tue, Dec 16, 2025 at 12:53 AM BOB WATWOSQQ <wa2sqq at gmail.com> wrote:
>
> > If I want to broaden the operating frequency of a common mode choke, can
> > you stack two different mixes, say a 31 and a 43 to create one common
> > choke?
> >
> >
> >
> >
> > *Best 73 de WA2SQQElmwood Park, NJ"The only dumb questions are those we
> > don't ask"*
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> >
>
>
> --
>
> *Dave - WØLEV*
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