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-RADIO BROADCAST ADVERTISER. BAND-FILTER Flat-Top, Stra 15hit-Side lO-Kilocycle Selectivity A famous feature exclusive with Ham- marlund Receivers for ttvo years. Gives perfect 10- kilocycle tuning, without cutting sidebands. Reduces back- ground noises. Im- proves tone. 7VTEVER before, outside of special laboratory models, -t 'has there been available to radio constructors such a receiver as the new "HiQ-30." Its extraordinary features are so far in advance of even previous "HiQ" Models that the loyal army of Hammarlund enthusiasts throughout the world will welcome the "HiQ-30" with nothing short of amazement. A masterpiece mechanically and electrically, with extra- ordinary beauty as well. No miscellaneous collection of parts — but each component specially built for the charac- teristics of the circuit and everything to the last screw supplied by the factory. Perfect selectivity — range limited only by atmospheric conditions — deafening power under velvet control — tone that thrills the music critic — one-dial operation — uses any length antenna — push-pull '45 audio amplifier — perma- nent phonograph connection — choice of speakers and cabinets, including phono-radio combinations. Build the "HiQ-30" yourself or we'll recommend a local custom-radio builder to assemble it for you. Get the "HiQ-30" story Now. Mail coupon for 48-page Manual — a wonderful guide book for constructors of modern receivers. HAMMARLUND-ROBERTS, INC. 424-438 W. 33rd St., New York .Hcimmarlund RADIO Completely Wired Factory-Built Units Including Three-Stage Tuned Band Filtei—Three-Stage Tuned Screen-Grid Amplifier —Special Power Pack—Six Tuned Circuits—individually and collectively shielded. The most flexible—the most scientifically perfect—the greatest performing radio of all time. BLACKSTONE One of nine magnificent "HiQ-30" Spe- cial Consoles available from the factory. WINDSOR A radio-phono- graph combi- nation of rare excellence and distinctive beauty. • DECEMBER 1929 97