. QST . an out|)ut circuit with asmoothly adjustable range from 20 to 133.^ circuit, as set up by Mallorv auuileurs. givesgood matching from most low power final ampli-fier stages into a wide range of antenna feeds. Itwill be smoothest when working from plateimpedances of the order of 3000 to SOOO ohmsinto a 50 ohm co-ax fed antenna system. Asdrawn here, the circuit \\ill work well on allbands from ) through 28 megacycles. The inductor hi nuist be made adjustable over arange from 20 to 2 or 3 microhenries, dependingon the frequency band and on the particularplate and antenna inq)e


. QST . an out|)ut circuit with asmoothly adjustable range from 20 to 133.^ circuit, as set up by Mallorv auuileurs. givesgood matching from most low power final ampli-fier stages into a wide range of antenna feeds. Itwill be smoothest when working from plateimpedances of the order of 3000 to SOOO ohmsinto a 50 ohm co-ax fed antenna system. Asdrawn here, the circuit \\ill work well on allbands from ) through 28 megacycles. The inductor hi nuist be made adjustable over arange from 20 to 2 or 3 microhenries, dependingon the frequency band and on the particularplate and antenna inq)edances. Representativevalues will be found in the Radio AmateursHandbook and in magazine articles on Pinetwork operation. Your MallorA* distributor will be glad to showyou one of these versatile Capacitor DecadeSwitches, as well as the many other Malloryelectronic components that you can rely upon tokeep your rig in top-notch operation. Stop in andsee him soon, and put this idea to work foryourself, too!. 93 Kit of 6 tools$ (suggested net price)


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915