Unless the ferrite material is porous such that water can penetrate the
surface, I don't understand their disintegration. I thought they were
essentially like glass. If they aren't, and if water can penetrate the surface,
then freeze/thaw cycles will certainly damage them.
Kim N5OP
"People that make music together cannot be enemies, at least as long as the
music lasts." -- Paul Hindemith
> On Jun 30, 2017, at 19:51, Jim Brown <jim@audiosystemsgroup.com> wrote:
>
>> On 6/30/2017 4:09 PM, N2TK, Tony wrote:
>> Last winter I had a couple FT-240 Fair-Rite #31 cores on my receive antennas
>> break. They were on the ground here in upstate NY.
>
> Thanks Tony. Tell me about the mechanical details -- was this a single choke
> on two cores, or two single-core chokes? Was freeze/thaw a factor -- that is,
> did they get wet/icy?
>
> The only reason I recommend NOT enclosing chokes is to maximize dissipation
> of any heat produced. That's not an issue on RX lines.
>
> 73, Jim K9YC
>
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