Type 31 Ferrite

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Type 31 Ferrite

Mike Harris-9
I've got a small stack of 2.5 inch diameter type 31 ferrite rings.
Interestingly the resistance measured on the ring was dramatically
different depending upon which of the flat sides measured.

One side 600kOhm+/- whilst on the other 10>20kOhm. This was the same for
all of them.

Regards,

Mike VP8NO
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Re: Type 31 Ferrite

Jim Brown-10
This is not unusual. The value is not critical, but rather that the
resistivity is within a range that CAN be measured with a typical VOM.

73, Jim

On Tue,5/23/2017 5:50 AM, Mike Harris wrote:
> I've got a small stack of 2.5 inch diameter type 31 ferrite rings.
> Interestingly the resistance measured on the ring was dramatically
> different depending upon which of the flat sides measured.
>
> One side 600kOhm+/- whilst on the other 10>20kOhm. This was the same
> for all of them.


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