Show importance of crystal find and care it requires in the reflex type of receiver in which the crystal Is used as a detector the sensitiveness of the crystal determines almost completely how bow sensitive 1 he entire set bet will be the importance of using a good crystal cau can be imagined in this case the ti of contact of the cats cata whisker with the surface of the crystal Is important if the contact Is too light the receiver will have a tendency to howl bowl it if the contact lc it too heavy the receiver will not be as sensitive as it otherwise would it Is customary with modern crystal detector starda star ds to provide some sort of covering usually of glass so BO that dust and dirt are prevented from accumulating mu lating on the surface of the crystal and so BO that it to Is impossible to allow the fingers to come in contact with the crystal itself in this abl way the crystal detector retains its sensitivity for a much longer period of time and the receiver as a whole Is if correspond tn r better |