Radio Broadcast (May 1929-Apr 1930)

-z. RADIO BROADCAST The Allied Bboadcasting Companies, Inc. are now located at 1780 Broadway, New York City. Allied Broadcasting represents the following west-coast stations: kjb, Seattle; kex, Portland; kga, Spokane; kya, San Francisco; kmtr, Los Angeles; K.DYL, Salt Lake City; and elz, Denver. The New York Office handles all matters relating to broadcasting on this network from points east of Chicago. radio set for automobiles The Automobile Radio Corporation of New York recently showed a receiver called the "Transitone" for installation on motor cars. The controls of the set are located in the dashboard of the car by relocating the instruments there; the antenna is installed in the roof, or, if the car is of the open type, the screen antenna folds down with the top with satisfactory results in either position. A standard tuned r.f. circuit is used and a special filter system to reduce ignition noise is a part of the installation. Offices of the company are at 37-7 Queens Boulevard, Long Island City, New York. Ralph Heina is chief engineer. zenith enters low-pbice field Model 42 is announced by Zenith, of Chicago, to sell at $175. It uses eight a.c. tubes including rectifier. Screen-grid tubes are employed as well as "automatic" tuning. Unusual sensitivity is obtained, according to the announcement, through the use of a separate control which serves as a combination switch and volume control. Additional selectivity is attained through the use of another control on the right. A patented switch and connection is also provided for a phonograph pick-up unit. The automatic tuning unit is concealed at the upper right of the cabinet, which is a lowboy console. Zenith states that its recent acquisition of a new factory in which all their cabinets are produced enables decreases in list prices. The company now makes all its parts as well as cabinets. NEW KELLOGG RECEIVERS Three new sets are announced by Kellogg, of Chicago, Nos. 523, 524, and 525. Each employs screen-grid a.c. tubes and large power-handling tubes in the last stage. Model 525 is a combination The Transformer Corporation of America has removed to the new plant pictured above. Their new equipment will have eight times the capacity of the former factory . The new National " Rainbow" dial is of modern design and construction. As the knob is turned the scale reading is projected in color on the groundglass screen. radio-phonograph set. The other two are arranged to permit the use of a phonograph pick-up unit. Each set has three screengrid tubes in the r.f. system feeding a "power" detector with high plate and grid voltages. The detector output in model 523 feeds a push-pull 245 audio channel, while two 250 tubes in push pull are used in the other models. Each set is equipped with a manual and automatic volume control. Model 523 employs the following tubes: three screen-grid a.c. tubes, three 227-type a.c. tubes, two 245-type power tubes, and one 280-type rectifier. Model 524 and the radio-phonograph, model 525, use the following: three 224's, three 227's, two 250's, and two 281 rectifiers. continental radio officers Officers and directors of the Continental Radio Corporation, Fort Wayne, Ind., are Charles M. Neizer, chairman of the board; S. Paul Mozeman, vicepresident; John A. Thieme, secretarytreasurer; other board members are, Henry J. Miller, W. H. Noll, W. J. Vesey, Max B. Fisher, Carl D. Boyd, W. C. Rastetter, and Joseph Lush (also treasurer, Hammarlund Mfg. Co.). Carl D. Boyd is president of the company, and Henry S. Schry ver is chief engineer. NEW TELEVISION SCHEDULE In obdeb to allow a greater period for study of television reception at various locations, especially during the evening, the daily transmission schedule of the Radio Corporation's experimental television station, w2xbs, has been extended to include the hours of 9-11 p.m. This change took effect May 6th. Beginning April 30th, w2xbs has been operating on Eastern Daylight Saving Time. Since early in March, when the operating schedule was announced, w2xbs has been transmitting daily from 7-9 p.m. on a frequency of from 2000-2100 kilocycles. Transmitted pictures consist of sixty horizontal lines, each divided into seventy-two elements laterally. Twenty pictures are scanned per second. The new daily schedule will permit experimenters to observe signs, photographs, and views of persons between the hours of 7-11 p.m. NEW FINANCE PLAN Undeb the terms of an arrangement just completed between the Kellogg Switchboard and Supply Company of Chicago, and the General Contract Purchase Corporation of New York, Kellogg dealers may now avail themselves of a convenient and economical method of handling their customer's time payment paper. A feature of the plan is a copyrighted sales chart furnished to the dealer which eliminates any necessity on the part of the dealer for figuring terms or rates. With the payment chart the dealer merely asks the customer how much he or she can afford to pay each month on the due balance. The sales chart then gives the exact amount of the contract, the exact amount of the payments, and the number of months the contract runs. Another most desirable feature of the plan is that the customer, seeing the printed figures, does not try to haggle or bargain. He accepts them as they are. ERLA BUYS CABINET FACTORY The Chicago plant of the Cable Piano Company was bought by the Electrical Besearch Laboratories. Cabinets, receivers, electromagnetic pick-up units, and dynamic loud speakers will be manufactured. Equipment for manufacturing 1500 cabinets daily was taken over as part of the purchase, and contemplated additions to the equipment are expected to increase cabinet capacity to a maximum of 2500 per day. Manufacturing operations now conducted at the Erla plant at 2500 Cottage Grove Ave., and at the Greene-Brown plant at 5100 Ravenswood Ave., will be transferred to the Cable plant as rapidly as possible. The Chicago office of the DeJurAmsco Corporation, at 77 West Washington Street, has been removed to larger quarters in the Wrigley Building, Chicago. The change was made May 1st. Mr. William E. Burgoyne is in charge. SPARTON DEVELOPMENTS Continuing its policy of manufacturing of every part that goes into Sparton sets the SparksWithington Company of Jackson, Michigan, are equipping a new plant for the making of light metal punchings. Machinery is being installed which will be used in the making of a great number of parts for Sparton sets. The new plant will provide space for several hundred additional employees. During the peak of the 1928 season more than 4000 persons were engaged in the making of Sparton sets, and this will be increased greatly during the coming year. The Sparton organization has grown from approximately 500 individuals to more than 4000 within the short space of four years. JULY • 1929 151 J"'1