Radio Digest (Oct 1923-July 1924)

October 13, 1923 RADIO DIGE'ST-/Hw/ra/frf AIR CARRIES FAR-EAST WORD PICTURES WTAM Makes Debut at Cleveland as "The Voice from the Storage Battery" Six-acre Lot Utilized by Willard Company for Powerful Class B Station — Cottage Near Lake Erie Houses Equipment, Studio — Program Every Wednesday Night By F. A. Price CLEVELAND, O. — There was a new station on the air recently when the Willard Storage Battery Company turned on the current for Its initial program, broadcast on a wave length of 390 meters, from the company's manufacturing plant at Cleveland, Ohio. The Willard Storage Battery Company is one of the country's largest manufacturers of storage batteries for Radio and automobile use. WTAM is the call signal assigned to this station, which Is one of the most powerful Class B stations in the United States, and the Willard Company has spared no expense in providing the last word in transmitting equipment. The company has utilized a six-acre lot adjacent to their immense plant and have erected a substantial building of cottage type to house the station. Separate rooms are provided for the transmitting equipment, storage batteries, reception hall, and studio with commodious dressing rooms for the men and women artists who will contribute to the entertainment of the unseen audiences. No Moving' Machinery Used The transmitting equipment is of composite type, built by the Willard Storage Battery Company. The installation is unique in that no moving machinery will be in the station; an immense bank of storage cells supplying the 2,500 volts required for the 1,000-watt transmitter. The absence of moving machinery is carried to the point of providing remote control for the ventilation of the battery room and the entire building. A T-type aerial is employed; the antenna consisting of twelve wires in a double cage formation of six wires each. The aerial has a span of almost 250 feet, with a weight of approximately 400 pounds, and is suspended at a height of about 138 feet between two 140-foot towers. The towers are constructed -or four-inch angle iron to a height of 112 feet, the remaining distance being covered by thirty-eight-foot masts of wood. These masts are eight inches in diameter. This form of construction insures a maximum value of insulation combined with strength sufficient to withstand ice and wind stress THE TRUTH ABOUT "ALL-AMERICAN" TRANSFORMERS Read what Mr. Gehlert of Benton Harbor, Michigan, says about them. "I have tried a number of transformers but I have never been able to get as good results on other transformers as I do when I use "AllAmerican" ; consequently I am not using any other make. I hooked up a two-stage radio detector and a two-stage audio frequency set using "AllAmerican" transformers on both sides with first class results. The two radio transformers I used were both identical. Hearing so much about it being better to have radio frequency transformers that were made special for first, second and third stages, I obtained a set of these of another make but the three special radios did not come anywhere near bringing in the results that two "All-American" radio frequency transformers produced. I do not hesitate to write this to you because the results of your product have been so noticeable to me in comparison with others that I feel this compliment is due you." The thousands of users of "All-American" Transformers are our boosters. Ask any of them. Audio Frequency Transformer Radio Frequency Transformer RAUlAMMFaCo. 200 Ho. Jefferson ^Chicago, III Write for our free book °f hookups, enclosing two-cent stamp to cover postage. By means of a "Radio camera" of his invention, C. Francis Jenkins, of Washington, D. C, has rendered much easier all communications with Oriental countries that use word symbols. The instrument can send the entire message, written in Japanese or Chinese characters, through the air on Radio waves. Arrived at their destination, these waves, through the receiving apparatus, are made to strike a special sensitized photographic paper — and in the twinkling of an eye there appears an exact reproduction of the original Radiogram. Heretofore it has been necessary to translate such communications into the English language before sending them by Radio or cable © P. & A. on the aerial. Stranded steel guys, with numerous strain insulators, are anchored to concrete piers for back bracing, and the legs of the towers are more deeply seated in more massive piers of the same material. Is Quality Station A counterpoise, sixty feet wide and 2T50 feet long, is supported by a six-inch Ibeams, twelve feet above the ground, and immediately beneath the spread of the aerial. The counterpoise is made up of twelve 250-foot lengths of antenna wire spaced five feet apart. The antenna is brought into the roof of the building and separate outlets are provided for the lead to the counterpoise and lightning arrestor ground. WTAM is to be a quality station in every sense of the word. The best of Cleveland's local talent will be drawn upon for entertainers, and their offerinsH will be supplemented by artists from other localities, especially engaged for this station. Programs will be broadcast on Wednesday evening of each week, with the probability of using Saturday evening later in the season. The programs will start at 8:00 p. m.. Eastern standard time. Ideal Location The location of WTAM makes for ideal transmission. The station is eight miles from the business center of Cleveland, onehalf mile from Lake Erie, and about onequarter mile from the nearest electric car line, this last feature securing a minimum of disturbance from a sometimes troublesome source. Particular attention was given to the (Continued on page 9) Make Pennies Do What Dollars Did Before Never before in the history of Radio have pennies done so much. The Michigan 'Midget" gives you everything that any set you could pay dollars for will give you — and yet the price is small. Long distance The Michigan "Midget" gives it to you. Selectiveness The "Midget" cuts out local stations and brings in out of town stations. Ease of Any ten-year-old boy or girl can operate a Adjustment "Midget." Sharpness of A slight movement of the controls brings in Tuning other stations. Portability Weighing but 6 lbs. it is ideal for home use or for camping, touring and resort use. You can always take your "Midget" with you. Operations It operates on all makes of 6-volt and equally as well with all dry-cell tubes. It can be used with one or more headphones or can be used with any one or two stage amplifier for loud speaker reception. Price $27.00, without tubes or accessories And so we say we have made pennies do what dollars did before. Go to your dealer, ask him to show you a Michigan "Midget"— test it out tor yourself Also ask about the Michigan "Midget" Two Stage Amplifier and our exclusive line of Condensers, Variocouplers, Variometers. Rheostats, etc. When send for circular, give us the name of your favorite radio dealer. mFOBHaHBi Grand Rapids.Michigan