| http://www.w3.org/ns/prov#value | - However, YMMV. Plexiglass is not too bad froma Q viewpoint when just a sheet of it is used, but polystyrene is slightly better.There was an article in the old RSGB Bulletin (now RadCom) in the 60's on making airwound coils like B & W Miniductor or Airdux.
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