Indianapolis Times, Volume 46, Number 136, Indianapolis, Marion County, 17 October 1934 — Page 22

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Five Major Improvements Offered in Sets

All-Wave Reception by 1935 Models Accorded Most of Public Favor Fidelity of Tone, Automatic Volume Control and Noise Elimination Developed. Another new major trend in radio is being hailed by the industry with the full blossoming of the 1935 all-wave sets. They have inspired anew phrase: “If it isn't an all-wave, it’s obsolete,” a phrase that is taken to herald anew era in the industry which is expected to be fully as important as the era which began with the introduction of the all-electric set. Let the development of the air-wave radio, which gets short-wave and

standard broadcast alike through one instrument is but one of the important improvements in the new machines to be displayed in the city-wide radio progress exposition. Some of the more important improvements which come hand in hand with the development of the all-wave set, but which have been passed on to the standard broadcast receivers which will be continued in production in new models, include: Enhancement of selectivity of individual sets. Anew fidelity of tonal quality. Introduction of automatic volume control in a perfected form. Marked progress toward the elimination of extraneous noises. These new* major improvements will be recognized readily by the scores who are expected to take advantage of the city-wide exposition to see and examine the sets. New Thrill for Dialers A new thrill awaits these dialers for the development of the all-wave instrument prompts the question—“why be limited by the old broadcast receiver which brings you but a narrow slice of the air?” Standard broadcast receivers operate only between 200 and 550 meters, while the new all-wave sets which are really a combination of short and long-wave receivers reach down as far as twelve and fifteen meters and operate efficiently through the regular range of standard broadcast. To broaden the range of receptivity for the instrument that is adaptable to the living room, radio engineers had to build high sensitivity and high selectivity into the combinations sets, without disturbing the capacity of the instruments for the standard broadcast. Accurate Timing This they have achieved by the development of new circuits, unusually fine and accurate tuning devices. They also had to cope with the problem of tone control on the higher frequencies which come from distant points and therefore may be weaker. This they have met by clever engineering whieh makes the notes of the piccolo and the notes of the bass as clear through the new radios as any ear would want them. Still another problem was the reduction of extraneous noises which the new. highly sensitive receivers picked up all too readily at first. Marvelous filters have been devised to combat this problem. Aerial kits which enable more accurate tuning and the exclusion of this extraneous noise also have been developed. Signal Device One of the chief problems which the engineers had to cope was that of tuning for short wave. This they dealth with through dual speed knobs, band spreading devices and newly designed dials. Because of the nature of short wave radio it is easy for a dialer to pass completely by a wanted station without knowing that his radio has captured the desired signal. One manufacturer is featuring a signaling device which, through the utilization of a distinct sound, signals the fact that the station you want is being received. The band spreading device is one by means of which stations are carefully separated on the dial as the radio fan tunes through the short waves of foreign broadcast. It is like the separation and lengthening of inches on a rubber ruler, by pulling on it. Dials on the new all-wave radios are in fact four dials in one. They are of the easily read airplane type with scales carefully calibrated to the band in which the station you want to receive is operating. Some of the new sets distinguish these different bands by colors, others by marking them. New Term in Radio Cleverly enough, the same needle, the same tuning control, and the

For Farmers The rural radio enthusiast who may be far removed from a commercial source of electrical energy with which to operate a radio set, has not been forgotten by the makers of the new all-wave radios. Included in sets which will be on display during radio exposition week, will be all-wave models specially designed to operate outside electrified areas. The progress made in tube design has particularly helped to increase the range of the battery operated sets, engineers report, and thus the farmer who has no electrical current still may be able, with the new battery sets, to travel on radio waves to South America, England, Germany, or to listen to the fliers report their positions from high in the air, just as easily as the city dweller who plugs his electrified set into a light socket.

same volume knob controls all four of the dials. The progress in reception has given rise to an entirely new term in radio. It is high fidelity, which is being used to describe the fine quality of sound reproduction which is to be had over the new sets. Once radio engineers had to sacrifice fidelity to tone to selectivity, but no longer. Through the development of new circuits, better tubes and electrodynamic speakers, they have enhanced the quality of tone and increased the selectivity of the sets. Automatic Control The automatic volume control to be found on many of the new models is a device for keeping the degree of loudness or softness at which you want a program to come in constant, despite atmospheric conditions, fading and the like. It does away with the necessity for constantly fiddling with the volume control in order to be able to hear everything that is coming from a. different station. And in the allwave sets it is particularly designed to function with the short wave bands in operation as well as the standard broadcast. Developments in tube design and construction have brought forth the multi purpose tube which can be used often more efficiently, in the place of two or three other tubes. Thus many sets of today which are described as five-tube sets are comparable to the seven-tube sets of yesterday, and many nine-tube sets of today are comparable to the twelve-tube sets of yore. New Beauty in Design The progress that has be eh made in the chassis of the radio has likewise been reflected in the new design for cabinets, console and table sets. The modern influence is evident in their straight up and down line while the designers have valiantly withstood the temptation to go freakishly extreme. It is as if they had borne in mind that the new radios must blend beautifully into the living rooms of thousands of homes. LISTS 8,500 STATIONS More than 8.500 listings of shortwave stations have been compiled by the Official Short Wave Log and Call Magazine, which is popular among both short and all-wave fans as a guide. MANY LINKED Often when listening to airplane broadcasts the dialer will encounter conversations being conducted between several stations and airplanes.

THE INDIANAPOLIS TIMES

Photos from Grunow, left, and General Electric, right. The picture on page one shows a Philco. The 1935 radios have advanced as far from the standpoint of outward appearance as they have progressed in range of reception. The console model to the left is one of the handsome new designs available this season. Upper right is a photo of one of the new table top types with all-wave reception. In circle is a picture of anew type of leg treatment for cabinets.

Wide Variety of New Models Included in 1935 Lines Offered by Set Makers

Most of Advances Listed Here Will * Be Shown. A brief description of the major features and improvements contained in the sets to be shown in Indianapolis by representatives of manufacturers during the city-wide radio progress exposition is given below:

RCA Victor

RCA Victor has given the name “magic brain” to its new unit which directs the selection and reception of radio broadcasts from all over the world, concentrating on a single wave band at a time and blocking unwanted signals. The “magic brain” has a set of individual tuning coils, each one covering a section of the world-wide tuning range. Signals come in stronger. Noise is cut down. All the RCA Victor radios having eight or more tubes feature the exclusive “X” band or government aviation weather reports.

Grunow

Grunow engineers, frankly realizing that old style short wave tuning had difficulties which puzzled many a radio fan, have met the problem with a new device, the “signal beacon.” This device detects the approach to a very distant station which might otherwise be missed. The signal is a high pitched note which decreases when the proper setting for the station is reached, and increases again if the dialer passes too far to the other side of the station. The Grunow dual drive feature enables the listener-in to tune with considerable more accuracy than heretofore.

Stewart- W arner

Stewart-Warner. pioneer in short wave receptions, stresses the Magic Dial as means of simplifying allwave tuning. A simple twist of the selectcw gives the listener-in a choice of four different dial faces. One is for standard American broadcasts. A second is for police, aircraft and amateur station signals. The third dial face is for ships at

Some Style Notes From 1935 Radio World

sea. South American stations and United States short wave stations, while the fourth makes available foreign stations from all over the world. Magic Dial features are to be had in a number of models in the Stewart-Warner line.

Philco had the serious music lover in mind when the new model 200 X was designed. Anew feature, controlled high fidelity, makes it possible to hear the entire musical range of the orchestra. Highlighted in the new line are all-wave receivers in a series of cabinets designed for Philco by the industrial artist, Ben Nash. These were especially created to blend with other furniture in the room, without looking too modernistic or, on the other hand, copying furniture designed originally for something else.

Atwater Kent’s Tune -0 - Matic, the radio that starts and stops itself, is an outstanding number in a 1935 line which presents twentyseven new types of radio sets. The Tune-O-Matic has a built-in electric clock which permits tuning in a number of selected radio programs covering a twelve-hour period with but one setting. This set is an eleven-tube superheterodyne type, built to receive both American and foreign broadcasts. Other Atwater Kent models offer all-wave reception, in ’ a choice of types. Lou Little Will Be Radio Guest Speaker Thorton Fisher, noted sports writer and radio commentator, who brings results of football games to radio listeners over an NBC-WEAF network each Saturday, will have as guest speaker next Saturday, Coach Lou Little of the Columbia university team. Rose Bowl champions. Litle is expected to comment not only on the college football situation | in general, but to touch on the high points of the Columbia-Navy game ; that day. Fisher likewise will give during the broadcast from Radio City at 5:45 p. m., central standard his view's on the football situation time.

Philco

Atwater Kent

OCT. lty 1934

Here's Guide to Big Features of New Radios.

General Electric

General Electric introduces in its new 1935 radio line the beautiful cabinet design created by the designer of the Packard automobile. Elaborate w'oods have been selected in all of these outstanding designs. Great effort has been stressed in equiping this new line with all of the requirements needed in short wave performance. Europe, airplane broadcasts, ships-at-sea, amateur calls —in fact, stations from all over the world are at your command with the new General Electric.

Crosley

Efficiency and beauty are linked in the new 1935 line of Crosley radios. Headed by a group of American-foreign band models including two all-wave sets, the new Crosley Superheterodyne line is one of the most comprehensive ever offered, presenting complete series of dual range, standard band, motorboat, battery, portable, automobile, AC-DC airplane and aviation ground station receiving sets.

Westinghouse

Westinghouse is introducing its new 1935 world-wide radio line. This line is amply equipped to bring to your home all of the foreign broadcasts, airplane calls, police calls and amateur signals. All cabinets in this line are made of the finest walnut veneers, matched on three sides — beautiful and distinctive. CHOOSE HERBERT MUSIC Victor Herbert’s “The Angelus” from the musical comedy “Sweethearts’’ will be sung by the Utica | Club Singers, Marion Williams, soI prano, and Roger Sweet, tenor, in their weekly program from WGY at 7:30 p. m.. Friday. A second duet will be “Time to Go" from “Shady Lady.” Miss Williams’ solo will be "Tonight Is Mine” and Mr. Sweet will sing i’Tm In Love.”