This is their response: "We just give a quick spray of silicon spray from a=
hardware store. We haven't done any extensive testing but it helps protect=
them."=0D
=0D
I've asked for further details. Note that on that page they refer to the Ol=
ympus LS-7. That recorder allows for timed daily recordings.=0D
=0D
Sent from my iPad=0D
=0D
On 23 Sep 2017, at 11:16 am, <=
rr.com> [naturerecordists] <<naturer=
>> wrote:=0D
=0D
=0D
=0D
I'm guessing they mean "silicone" rather than "silicon". One is a polymer. =
The other is a particularly hard mineral.=0D
=0D
Please do let us know what the authors say. I'm curious if their silicone t=
reatment reached the diaphragm, or if they were spraying it on the outside =
of a filter material like the ones that were mentioned earlier in this thre=
ad. Given the number of photos they put in the document, I wish they had a =
picture for the silicone treatment, too.=0D
=0D
Good news is the stuff is really easy to get, if it's what I think it is. M=
ost auto parts places and hardware stores sell it.=0D
=0D
Good find!=0D
=0D
Tom=0D
=0D
=0D
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