Im not making them out of FR4 because of the glass fibers freed by machining i dont have a way to contain
the XXX paper phenolic is still really good (fr4 has a dielectric of 800V/mil and XXX paper has 700V/mil, the LE phenolic which is more structural has 650V/mil) but if your looking at surface resistivity, yes PTFE is by far the leader. here is a table of different laminates and their data http://www.plasticsintl.com/sortable_materials.php from what ive been reading XXX paper phenolic is fine for RF applications -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/514b23f3-e411-48c3-a031-ac742dc8eb5c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
