Radio mirror (Jan-Oct 1923)

VlltMIl RADIO DIGEST May 12, 1Q23 NEW YORK TO HAVE DUAL STATION SOON MAY 15TH DATE SET FOR OPENING OF WJY-WJZ Aeolian Hall Plant of R. C. A. to Give Double Program on 405 and 455 Meters NEW YORK. — Broadcast Central, the new station of the Radio Corporation of America which has been the subject of considerable speculation among Radio listeners who have heard the station testing, will be opened May 16 at Aeolian Hall with call 2XR. Located in the heart of the city's musical and theatrical district, where entertainment of the highest order is ever available, this station will offer the American public most elaborate programs with a very high degree of faithfulness in reproduction. The wires, high on Aeolian Hall, which tower 400 feet above the Fifth avenue and 42nd street, provide two distinct antennae. The new super-station will transmit two broadcast programs simultaneously, on different wave lengths. WJV and WJZ New Calls The closing of Station WJZ at Newark, N. J., now operated jointly by the R. C. A. and the Westinghouse Company, will coincide with the opening of Broadcast Central. The well-known call "WJZ will be retained for transmission from the Aeolian Hall station on 455 meters, while the call "WJT will be used for the other wave length of 405 meters, both of which have recently been allocated to the new station. The new station is fitted with a double antenna and two independent transmitters which will permit a dual program to be broadcast. One program can be a classical or serious entertainment; the other, popular airs, dance music and lectures. Divide Badiophans into Two Classes A thorough analysis has been made of the types of programs best suited to the requirements of the public and this study has revealed the fact that generally, the Radio public may be divided into two classes, those who prefer classical or similar entertainment and those desiring dance music and popular airs. Not only will transmission be carried on from the two studios which are a part of the station, but the main recital hall of Aeolian Hall has been connected to a switchboard in the station, thus providing another source of the finest music obtainable. GREWOL— Use the Grewol enclosed Crystal Detector for the Reflex Circuit. Dust proof and fixed. WERNES & PATCH 159 N. State St. Chicago No. 1010X 30 Ohm Rheostat Excellent results assured with use on New Type tubes. UV199A UV201A Using small filament current 6 ohm $0.75 20 ohm 1.00 30 ohm 1.10 At your dealers. Otherwise sent postpaid on receipt of purchase price Write for catalog illustrating and describing our entire line of quality apparatus. Territory Open for Jobbers AER0V0X WIRELESS CORP. Z08 W. 17th ST. NEW YORK RECEIVING RECORDS? SEND 'EM IN— By the Contest Editor WHAT do you think of these DX records? None of them under 1, 200 miles! If you are able to pick up stations at distances approximating these, you can be sure you have a worthwhile set. H. S. Olding, of New Glasgow, N. S., is back again this week with five new records to his credit. The longest record this week, however, is sent in by M. H. Hall, of Boston, Mass., who listens in regularly to Hawaii. Watch for the contest rules next week. Below are the record holders for this week: Station Heard — Miles Away — Who Heard CJCN— 1900, Nestor Barrett, Republic, Wash. K DPT— 2600, B. G. Williams, Springfield. Mass. KDZK— 2050, C. E. Carber, Pittsburgh, Pa. KM J— 1550, H. E. Clark, Monmouth, I1L Kftl— 1650. H. E. Clark, Monmouth, 111. KTW— 1600, H. E. Clark, Monmouth, IH. KYQ— 5100, M H. Hall. Boston. Mass. WBAU— 1200, H. S. Olding, New Glasgow, N. S. WCAZ— 1450, H. S. Olding, New Glasgow, N. 8. WDAX— 1500, H. S. Olding, New Glasgow, N. 8. WFAA— 2000, H. S. Olding. New Glasgow. N. B. WMAV— 1500, H. S. Olding, New Glasgow. N. S. RADIO VISE No. 1008 The Handiest Tool for Building Your Own Set From Your Dealer or Send $2.00 $2.00 ($2.25 west of Mississippi) and We Will Send One Postpaid ZBonney tforge $ Id oof Worfis Toi£gfiman S. Jiteadozv S/s. &ffen£own.£a. S)i|!| SUPEflf=FONi TXP& & $7.50 list Price— Highest quality instrument using btst grade of materials. Made to bring in long distance. Can be used as a loud speaker unit. Hiotzen fones receive clear, loud signals. rinrp A. B. C. of RADIO— a 62-page boob rtvEiij written in clear, simple English, by a ■ nationally known Radio expert Explains the underlying principles of wireless telephony, with diagrams, drawings and glossary. A. B. C. of Radio FREE. Send check or money order for $3.95 TODAY for this wonderful Dietaen super-fone. Satisfaction guaranteed or money refunded. Standard parts only in original packing. Sold on a "money-back" basis. DURaTEK Permanent Crystal Detector. ...$ 2.00 W.D.-ll Adapter .65 2-inch Bakellte Dials 25 3-inch Bakellte Dials 35 $1.00 Bakellte Socket 50 5.00 W. D. 12 Audio Frequency transformer 3.75 3.00 Owl Radio Preauency transformer 1.50 5.50 Coto Coil Radio Preauency transformer 3.45 3.00 Sleeper Radio Preauency transformer.. 1.95 5.00 Acme Audio and Radio transformer. . 3.45 8. 00 Dayton Variometer 5.45 8.00 Dayton Variocoupler 5.45 5.50 Murdock variable condenser, 23-plate 2.95 6.50 Murdock variable condenser, 43-plate 3.25 132.00 Radiola R C. set 79.50 5.00 Multi-Radioacope 1-50 Little Gem set 6.50 50.00 Turney single tube set 18.50 Money Order or Personal Check Accepted RADIO STORES Dept. F. 11, 191 Fulton St., N.Y.C. R. H. G. Mathews Speaks on So Called "Standard" Parts COLUMBUS, OHIO.— "Don't buy any 'standard' Radio parts on the market, unless you know something about them," was the message of R. H. G. Matthews, central division manager of the American Radio Relay League and representative of the Chicago Radio Laboratory, in an address delivered at the Second Annual Amateur Radio Convention held in Columbus recently. Explaining in detail tests made of "standard" Radio equipment, he asserted much of the higher priced receiving equipment, while of excellent mechanical construction, is very low in electrical efficiency. This condition is the result of many electrical manufacturers entering the Radio field without first obtaining a thorough knowledge of underlying fundamentals, and not in any intent to defraud, Matthews indicated. t REINARTZ ALL PARTS NECESSARY DEALERS: ATTRACTIVE DISCOUNTS I'J'M.'fltT 123 W.Madixon.ft.Chicaqo Ritter Loop Aerial $1 A knock-down aerial. All parts perfect and made to fit properly. Results guaranteed. Can be assembled in, 10 minutes. Loop aerials of this kind never sold for less than $5. We manufacture and sell right from our factory. Ritter Grand $250 Crystal Set The best set for beginners or others desiring a real good set for little money. Tunes up _ to 600 meters; can receive up to 50 miles radius under normal conditions. Has received 100% ratings from technical depts. of many publications. Call and see the crystal set and ' loop aerial working. Mail orders filled. RITTER RADIO CORP. 230 Canal Street New York City DEALERS WRITE FOR DETAILS Good Bye Aerials! So Long Static (Fat. Fending) Replaces aerials, loops, electric light plugs, etc. Eliminates lightning dangers. Reduces STATIC interference and distortion. Brings clearer signals and truer tone. Works on all standard vacuum tube sets. Postpaid, Anywhere, for $5.00 Satisfaction Guaranteed, or Money Refunded. Short Cut Radio Corp. 243 West 54th St. New York "Dept. R. D." Makes Your Set Portable. Size only 6J4 by 2%. Dealers write for our proposition r "*X THE BULL DOG MAST SEAT Fills a Long Felt Want If you are detracting from the appearance of your home by using an unsightly mast (a 2x4 or crooked pole) , install in its place the only Aerial Mast Seat on the market today. A solid and substantial base for your Mast, eliminating sagging and swaying, affording permanency and security. Greater range and more satisfactory results from your receiving set. ORNAMENTAL STRONGLY CONSTRUCTED QUICKLY AND EASILY INSTALLED GRIPS YOUR MAST LIKE A VICE Adjustable to any pitch of roof, either peaked or metal ridge roll type. Seat for 1 inch Mast $2.00 each Seat for 1 V2 inch Mast $2.50 each If your dealer cannot supply you, clip coupon and mail with your remittance to MAST SEAT MANUFACTURING CO. 119-D 5th Street S. E., MINNEAPOLIS, MINNESOTA Jobbers and Distributors Write for Discount MAST SEAT MFG. COMPANY, 119 Fifth St S, E., Minneapolis, Minnesota KD-5-12-23 Gentlemen: Enclosed is $ Send me Mast Seats to cover remittance. Name.... Address. City Check, Money Order or Bank Draft J