I went to a local foam
supplier that has different types of open cell foam...cut thickness
desired..or use a sharp serrated bread knife and slice off what
is needed from a block....trim to size....other option is the
aluminum filter material used above stoves to collect grease
fumes...again trim to size
¸é±ð²Ô¨¦±ð
On 11/14/23 9:58 AM, Michael A. Terrell
wrote:
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You can buy it on Ebay, and from industrial
suppliers.
On Tue, Nov 14, 2023 at
12:12?PM Tom via Metronet <
n8zmTWH@...>
wrote:
Probably
because the filter material degraded with age and
fell apart; then was not replaced. Can¡¯t suggest
where to get it or what alternatives there might be.
It may also have a slight benefit in reducing the
jet engine noise typical of HP fans.
?
Tom,
N8ZM
?
?
Indeed, the dust filter is a good
argument.
My box only has a finger grid, though, no dust filter,
but lots of dust inside...
Tom
