Radio age (May 1922-Dec 1923)

Inside the Arctic Circle, nine degrees from the North Pole, a little 89-foot schooner is frozen fast in the ice of Smith Sound. Aboard this schooner a group of brave men are enduring, as best they can, the desperate cold of the Arctic — cold that often drops to 60 degrees below zero. Human atoms in a boundless field of ice! Cold is hard to endure, but far more terrible is the Arctic solitude — unbelievably oppressive. Radio, at length, has broken this spell forever! Concerts from Honolulu! Daily, by means of powerful sending and receiving apparatus, the crew of the "Bowdoin" are in communication with relatives and friends in the far-off States. Daily they listen to concerts as far away as Chicago, Dsdlas, and Honolulu ! When the sanity, the very lives of one's shipmates may depend upon contact with the outside world, none but the best is good enough. Dr, MacMillan^s Choice— the Zenith Out of all the radio sets on the market, Dr. MacMillan selected the Zenith exclusively — because of its flawless construction, its unusual selectivity, its dependability and its tremendous reach. Already his operator, on board the "Bowdoin" in Northern Greenland, has tuned in several hundred stations. You along the Atlantic who brag a little when you tune in Catalina Island — what 'would you say if you tuned in Hawaii from the Arctic Circle? The set that Dr. MacMillan has is a standard Zenith receiving set. And you can do all that MacMillan does, and more, with either of the two new models shown at the right. Their moderate price brings them easily within your reach. Write today for full particulars. Zenith Radio Corporation McCortnick Building CHICAGO Model 4/?— The new Zenith 4R "Long-Distance" Receiver-Amplifier comprises a complete three j circuit regenerative receiver of the feed-back type. I It employs the Zenith regenerative circuit in p combination with an audion detector and three "■ stage audio-frequency amplifier, all in one cabinet. Because of the unique Zenith "selector," unusual selectivity is accomplished without complication of adjustment. The Zenith 4R may be connected directly to any I loud-speaker without the use of other amplification for full phonograph volume, and reception may be ! satisfactorily accomplished over distances dj Q C of more than 2,000 miles CpO 0 Model 5/?— The new Zenith 3R "Long-Distance" Receiver-Amplifier combines a specially designed distortionless three-stage amplifier with the superefficient Zenith three-circuit regenerative tuner. Fine vernier adjustments — in connection with the unique Zenith aperiodic or non-resonant "selector" primary circuit — make possible extreme selectivity. 2,000 to 3,000 Miles with Any Loud-Speaker The new Zenith 3R has broken all records, even those set by its famous predecessors of the Zenith line. Satisfactory reception over distances of 2,000 to 3,000 miles, and over, is readily accomplished in full volume, using any ordinary loud-speaker. No special skill is required. The Zenith is the only set built which is capable of being used with all present-day tubes as well as with any tubes that may be brought out in the future. The Model 3R is compact.graceful in line, and djI^Q built in a highly finished mahogany cabinet ^>1UU r ZENITH RADIO CORPORATION, I 332 South Michigan Avenue, Chicago, Illinois I Gentlemen:— , ,. o ji Please send me illustrated literature on Zenith Kadio. I Address.