04-11-2016, 07:03 PM
Air core has higher Q (though lower inductance) than Dust Iron or Ferrite. The glue is usually pretty low loss, really the only effect of a glued together broken core is to reduce the inductance a bit.
On LW one winding is connected somehow to the tuning cap and the other winding isn't. The other winding is feedback.
On LW one winding is connected somehow to the tuning cap and the other winding isn't. The other winding is feedback.
