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-RADIO BROADCAST ADVERTISER r\r\ n SIX. n n n C I R.C U I TS 1st Stage R.F. Amplifier 5 2nd Stage R.F. Amplifier 3rd Stage R.F.Amplifier ^_^ J^/v'V BAND-FILTER FLAT-TOP - STRAIGHT-SI DE 1O-KILOCYCLE SELECTIVITY TTAMMARLUND once again has put over a screen-grid, band-filter radio with six tuned circuits, so amazingly efficient that professional radio men by the score are building it for their own use. The "HiQ-29" was a startling revel- ation, but in the words of Al. Jolson, "You ain't heard nothin' yet" like the "HiQ-30" perform- ance—or the "HiQ-30" tone. It is the only circuit that makes screen-grid tubes really do a day's work and the marvelous "HiQ-30" power amplifier with push-pull '45's takes all they can give it. Pre-selectcd signals—ten-kilocycles apart —with no side-band cutting means Se- lectivity with a capital "S" and T-O-N-E that talks. The easiest of all "HiQ's" to build too, with complete, factory-wired and tested units. No adjustments —no troubles. It percolates from the start. A. C. or battery chassis fits standard cabinets, or your choice of nine special "HiQ-30'' cabinets including phono- graph combinations, $139.50 to $1175 complete, less tubes. You should have a copy of the 48-page "tfi<?-30" Manual. Price 25c. Use the coupon. WORLD'S PREMIER CUSTOM RADIO Complete Factory- Built Units—Wired and Tested, ready to install. HAMMARLUND-ROBERTS, INC. />«•;> f KB /, 42-1-438 W. 33rd St:, New York Enclosed 25c (stamps or coin) for HiQ-30 Manual Name Address JANUARY 1930 • 1 25