408 Radio News for November, 1928 4 NEW HI-Q RECEIVERS Custom -built To Any Pocketbook! 10 K.C. SELECTIVITY...ABSOLUTE FLAT TOP TUNING COAST -TO -COAST RECEPTION...NEW TONE QUALITY SCREEN -GRID TUBES . . . SHIELDED STEEL CHASSIS CONCEALED WIRING...SIMPLIFIED CONSTRUCTION AGAIN Hammer - lund- Roberts opens the radio season with advancements in construction and performance that will be marveled at throughout the entire radio world. This year, instead of merely one outstanding Custom -built receiver as in past years, we announce FOUR wonderful instruments -the result of the combined engineering efforts of the foremost parts manufacturers in America. FOUR brand -new models -a Junior D.C., a Junior A.C., a Master D.C. and a Master A.C. that establish a totally new standard in radio design. The new Master Hi -Q typifies the marvelous efficiency of the entire line of 1929 Hi -Q's. A five -tube stage -shielded receiver that is built upon a solid steel chassis. Only the very finest parts in the industry are used, including the newscreen -grid tube. Circuit isa new development with a BAND -PASS FILTER, which effects absolute FLAT -TOP square cut -off TUNING for the first time to our knowledge in radio history. FLAT -TOP TUN- ING with 10 K.C. selectivity! "Cross- talk" is impossible with this set, for the reason that it is impossible to receive more than one station at a time, even in large cities where many powerful stations are broadcasting! This peak achievement of Hi -Q design is a real "coast -tocoast" instrument. Stations don't merely "swish" in as with even the best of receivers. They absolutely "CLICK" in- sharp, clear, definite. No hum, no buzz, no oscillation - nothing but the pure, natural, clear-as-crystal signal exactly as it is delivered to the microphone. There is nothing like this new Hi -Q Receiver available anywhere in any circuit at any price. Wonderful sensitivity. Wonderful selectivity. And tone quality that simply cannot be described. The other three new Hi -Q 29 Receivers have similar qualities -each the fullest value available in the radio world -each a finer instrument than any ready -built .receiver selling at $50 to $100 more money. Send Now for This New 8o -Page Construction Manual Biggest and most complete book ever published. Tells how to build the 4 new Hi -Q Receivers. Photos and diagrams illustrate every detail. Covers power amplifiers, tube and battery combinations, antennae, installation,short-waveadapters,house wiring and a wealth of other data on custom -built radio. Price 25c. JUNIOR A. C. HI -Q Z9 A screen -grid, shielded receiver made with the finest parts available. Extremely selective, sensitive, tone quality unsurpassed, simplified construction. Junior Hi -0 29 complete without cabinet, 654.35. Junior A. C. Hi -Q 29 complete without cabinet, $103.95. Any Hi Model, whether in this delightful console or one of the Hi- Q Cabinets, makes a pleasing, decorative adjunct to the finest interior. HAMMARLUND -ROBERTS, INC., 1182-C Associate Manufacturers MASTER HI -Q 29 The outstanding feature of this set is the Hi -0 Band-pass Filter, which actually a fectsFiiï- ToP TUNING within a 10 K. C. band. Also screen -grid tubes, completely shielded, concealed wiring. Master Hi -Q 29 complete without cabinet, $99.50. Mastei A. C. Hi -Q 29 complete without cabinet, $151.80. Broadway, New York ((I ARCTUßMg_ rap TeORUaRS(IK 'ELECTRAU' Y Please say you saw it in RADIO NEWS www.americanradiohistory.com
www.americanradiohistory.com Radio News for November, 1928 Type BNK forreplacing the acid jan in Balkh` Type. N and K Trickle Barger. II KI) I Lill liti IJI LI liCIIIILI{f_ 409 TypeBJforreplae. i the acid jars o Balkite Type J chargera . 1 e e eri etc V e5ted iri t5e ri °te t plri .we riri' ri 1 a ít p ase ato >ass te io basffiet5be eli 104 e tecteau5te . at. se4aba5 beaceab e gF, 1Eg 0100/6 va se4 YÚg lyG`i 5to=a°Oe 4 ta tijb eri :;;e p t . kae cba9 tt atá e4 a5 ito , ri a is pt is the tie 4 tot, ` WOOL rie r°t