Replacement for Foam Filter for PDP 11/24

Matt Burke matt at
Sun Sep 5 03:26:04 CDT 2021

On 04/09/2021 18:42, Rob Jarratt via cctalk wrote:
> Another query. The foam filter that sits in the front of my 11/24 CPU is
> clearly badly degraded and needs to be replaced. What do people replace this
> kind of stuff with? I guess it mustn't be too fine, this mesh seems quite
> coarse.

I think the original is something like 30 PPI reticulated foam.


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