[GreenKeys] How it works - felt used to wick oil

[Paul Heller]

It sounds like these folks have engineering knowledge behind felts (note the "ask the experts" section of the right of the page). They may have knowledge for teletypes as to which type of felt (F1, F2, etc) to use. 

Paul
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> On May 27, 2017, at 10:37 PM, Pete Lancashire <pete at petelancashire.com> wrote:
> 
> http://metricfelt.com/wicking.html
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