inputs.text: ham operators review - ham radio operator 23 years built many radio projects scratch bought kit build almost7 yearold less expensive obtaining germanium diode highimpedance earphones parts not hand build crystal set work great first trythe advantage kit big coil already wound kits use little prewound ferrite bar coils lack nostalgic visual appeal rehemniscent \\oatmeal box\\ coil winding coils hand tedious processthe disadvantage wires connected using 4 \\paper binder\\ stud clips 2 washers slipped thehem put wire ends washers push clip hole chassis spread tips underneath hold place requires considerable manual dexterity beyond 8 yearolds would preferred small screws wingnuts instructions less perfectly clear