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Show M-K I' Mil I I H-H-H'I I I I I I' M' " Hints for Radio Fans 11 THEN using a set with sev- VV ernl stages of radio fre- quency that are not neutralized, .. " be sure to use vernier dials or attachments. " Try connecting the negative B lead to first the positive and then the negative A battery post, and note which gives the best - results. !! Use a good mica grid con- I! denser In the grid circuit of the " detector tube. Much depends .. upon the grid condenser and .. ,eak- If you are troubled with (lis- .. tortlon when the loud speaker Is " used, try the speaker on another .'. set- !! When your set Is operating " 0. K. leave it alone. I! When mounting a new varl- able condenser check up the template with the holes on the condenser. Paper has a habit of shrinking when It goes through .! the presses and Is liable to set II the holes off somewhat Phila- !! delphla Public Ledger. Hlllllllll H-I-I-H 111111 M- |