Radio Digest (Oct 1923-July 1924)

Li May 10, 192k RADIO DIGEST — Illustrated TWO-WAY SET FOR AIR MAILMAN •continental mail flyers now are equipped with complete receiving and transmitting sets of latest improved type. To the left is Jack Knight, air mail ace for miles flown, in the cockpit of his plane. In the center is a view of the Radio installation, the arrows pointing, A to the front panel of the receiving set, B to the reel holding the aerial wire, which, in transmitting, is let out and trails below the plane, and C to the five 50-watt transmitter tubes. The head phones are built into the pilot's helmet. Right, a close-up of Knight with microphone. Left and center, K. & H. Photos Right, P. & A. Photo Track Driver Speaks to Broadcasting Financier Talks Things Over After Listening with Crystal Set NEW YORK. — Two prominent men in financial circles were discussing an important question at the intersection of two streets in Brooklyn. A negro, driving a team of horses, was forced to wait at the curb as the traffic officer allowed vehicles to pass in the other direction. The negro overheard the conversation between the two men and after a few moments stepped down and said, "Pahdon me, sah, ahn't you all the gen'lman, Mr. Vice-president Peter Hamilton, o' the Lawyers' Mortgage company what broadcasts through WEAF every Monday evenin'?" Mr. Hamilton, startled, turned at this greeting and answered, "Yes, I am." "Well, sah," answered the darky, "Ah, want to say Ah have enjoyed youah financial talks on mah crystal set and Ah suah am pleased to meet you all." Just then BRISTOL SINGLE CONTROL RADIO RECEIVER Using Grimes Inverse Duplex System Patents Pending Most Simple to Operate The set for those who want results with little effort. Anyone in the family can quickly learn to operate it because technicalities and guesswork are eliminated— One Control Dial does it all. Does Not Interfere With Your Neighbor Other close by reception is not disturbed when you tune in with this non-reradiating Receiving Set. It gives you a comfortable sensation of freedom to be able to change from one station to another knowing that you will not interfere with your neighbor's receiving. Choice of Aerial or Loop Where conditions make it difficult to install an outside aerial, as in congested sections of cities, good results can usually be had by using inside Loop. In fact, the directional feature of the Loop_ often brings in stations not possible with a stationary aerial. Mounted in solid mahogany case with walnut finish, the Bristol Single Control Radio Receiver is handsome in appearance. The price is $190.00. Bulletin AY-3013 describing this set will be mailed on request. BRISTOL TfUDC MARK AUDIOPHONE MO.U.V.MT. orncc Loud Speaker This is known everywhere as the Loud Speaker with the quality tone. Not only is_ the tone natural and without mechanical distortion, but is sufficiently big in volume to be easily heard in a large room or all through the house. _ Comes to you ready to use — no auxiliary batteries are required. Made in three models: Audiophone Senior Price, $30.00 Audiophone Junior Price, 22.50 Baby Audiophone Price, 12.50 J the traffic officer's whistle blew and the colored financial expert assumed his regular duty as charioteer of his express wagon. Amateur Radio apparatus and parts are being manufactured by about 160 German firms according to Kurt Hildesheimer, clerk to the American commercial attache. About 100 of these firms are located in Berlin and the rest throughout Germany. Station WKAQ, San Juan, Porto Rico, has been heard in Glasgow, Scotland. Radio Heckler Messes Up Political Address Reward of $500 Up for Capture of New Vandal KANSAS CITY.— Radio heckling Is the latest development in political campaigning. So declared the Democratic city central committee here recently in announcing a reward of $500 for information leading to the apprehension of a "Radio vandal," alleged to have interfered with broadcasting speeches in the heated city election campaign. Officials of the station declared some person employed an oscillator attached to an antenna nearby with the result that the program was heterodyned so as to be rendered unintelligible. United States Senator James A. Reed was one of the speakers. GREBE INDIVIDUAL SHIELDS ANTENNA CONDENSER "The Sage attends to the intttr and not to the outer. " — Lao Txu The •wist buyer of a radio receiver is not misled, he looks insidt the cabinet. SOoetfr r*fcjL » -« Grebe Regenerative Receivers are licensed under Armstrong U.S. Pat. No. 1,113,149 » -« Close inspection of many regenerative receivers reveals but one large shield to prevent bodycapacity effects. The Grebe engineers believed that this method resulted in the absorption and dissipation of too much precious energy. As a result of their research, each tuning control on a GREBE Receiver has its own aluminum shield of special size and shape. This is just one of many details of craftsmanship which make for the high efficiency of Grebe Receivers. THE BRISTOL COMPANY, Waterbury, Conn. A. H. Grebe 8c Co , Inc. Richmond Hill, N.Y.