non-ferrite balun cores

Arvid Evans <arvevans@...>


Since the tap washers, faucet washers here in the US, are mylon or
similar plastic type material, it would seem that they do not
contribute much to the functionality, other that to hold the wire
coils in a circular shape. Also, since there is no magnetic field
contribution by the nylon or plastic dore former it would seem that
one could cut a small slot in the material to facilitate winding the
coil without having to thread each turn through the center hole.

After the coil was wound one could use hot-melt glue (or anything
sticky that hardens well) to close the slot and to mount the coil to
the chassis material.

Has anybody tried this yet?