OCR Text |
Show Carborundum-Silicon Crystal Stand Model For the construction of a carborundum-silicon detector, the parts required re-quired are one piece of silicon, one piece of carborundum (crystal form), I w UJ life PF I -r Vr?-f i l 1 If J 1 . one piece of wood 2y2 by 14 inches, one piece of spring brass 2 by H Inch, one crystal cup, one brass bolt and nut Inch, one screw s-s-lnch long and two -inch fiat head thread i screws. ' i Bend the brass Into shape as shown , In the sketch, and drill one screw hole; also drill a 17-32-inoh hole; solder sol-der the tint and drill 3-lG-ineh hole in one end of U-ineh screw; fill this with solder and set carborundum in the solder while It Is still hot. The crystal cup may be of any model. The carborundum car-borundum must set very hard on the silicon, thus preventing the spot from being lost This type of detector will keen the spot through the heaviest of thunderstorms, and one may even pound on the table. Scinee and Invention ud Radio Kwa.) |