Radio Digest (July 1924-Apr 1925)

16 RADIO DIGES T— Illustrated July 26, 1924 The Reader's View "Dream Baddy" Was Our First Music Advertiser It occurs to me that there is one veryserious mistake being made by the music publishers — entirely apart from any reference to the so-called music trust which has come under recent castigation — and that is their failure to advertise their music through the channels of the Radio magazines. It is almost certain that any zealous Radiophan will read from two to four Radio magazines. He frequently reads them while seated before the Radio between Radio numbers from a favorite station. He hears an attractive melody and wonders where he could procure a copy of the music. Local music stores generally carry on their shelves what they please, not what the purchaser has recently heard. In small towns at least it is like pulling' teeth to get either the sheet AUXILIARY TUNER Patents Pending Better Than a Wave Trap Improved Model A TWITCHELL AUXILIARY TUNER connected to your instrument will positively eliminate all local interference , and enable you to* bring in distant stations at any time. They are In successful use within 400 feet of large broadcasting stations. They also enable you to receive on longer wave leugth than you can get without it. Copyrighted diagram $ .50 All parts including cabinet 9.00 Complete Tuner, Walnut cabinet 15.00 All Goods Prepaid S. A. TWITCHELL 1925 Western Ave. MINNEAPOLIS, MINN. WofksinmiK^SSefvice' "THEACCENT IS ON SERVICE " 14-16 Vesey St. NEW YORK VASIOCOUPLESS $3.50 Workrite 180° Silk Wound..-. $2.95 3.50 Fisher, Large, 90° 2.75 2.75 Fisher, 180° 2.25 4.25 Special Bank Wound Coupler for Havnes Circuit (with diagram) 3.25 7.00 Ambassador Coil (with diagram) 5.50 VARIOMETERS $3.50 Workrite $2.95 5.00 Pathe Moulded 2.25 3.50 Fisher, Large 2.85 CONDENSERS $2.00 R. C. 11 plate $1.05 2.25 R. C. 23 plate 1.35 2.75 K. C. 43 plate 1.65 VERNIER CONDENSERS $4.00 R. C. 23 plate $2.25 5.00 B. C. 43 plate 2.95 PHONES $18.00 OR. SEIBT IMPORTED "SUPER *£ QfJ HEADSET" <J>D.»U $12.00 N. & K., Imported $6.90 The above items are just a few of our numerous attractive priced articles, which are contained in our BULLETIN OF RAD'.O PARTS. Gladly sent to you upon request. We are headquarters for "Radion" and "Bakelite Dilecto" Panels. The best panel material available. Mail orders promptly attended to. Will ship C. 0. D. unless remittance accompanies order. TRIJACK HPRT-JACK is a dustproof, -1 solderless, super-compact jack with practically zero capacity — the greatest improvement in jacks so far. Solid bakelite! It costs onlv $1.25. TRI-COIL Radio Frequency Transformer has done wonders in the one tube reflex circuit. Sells for $2. Write for the FREE construction booklet. BROOKLYN METAL STAMPING Corp, 718 Atlantic Ave., Brooklyn. S.Yi , music or the phonograph records desired. Weeks of delay accompany the effort and patience and the desire is lost. Even though the music dealer is obliging, the customer is unable to give him the name of the firm publishing the music. If the record and sheet music men would advertise their music in the Radio magazines — not broadcast it, saying, for example, " 'Dream Daddy' — published by etc. — price — this song has been sung from stations so and so, etc." — I am very certain their sales would advance exceedingly and even the music dealers would profit by the customers being able to tell him where to get the music. For a year and a half I have waited to secure certain selections which I have heard and liked. At present there are a dozen or more I should very much like to possess. I have tried to secure phonograph records in half a dozen small towns within Ford range without avail. There seems to be no other way to get desirable player rolls, p. 201 Turns ... 25 List Price $ .55 .59 .65 .74 .90 1.10 .95 1.75 Wave Length 100 340 P-202 ,.„ P-203 „ 35 .. 50 ,. 75 100 150 125 470 170 650 P-204 P-205 ,, P-206 Ultra-Aud Reinartz . 220 960 300-1300 470-1980 Pfanstiehl Web Coils supremely Tuning Unit, consisting of 2 Spider with mechanism for <t£ AA sensitive adi ustment ."P" • uu At all good dealers or direct on receipt of purchase price PFANSTIEHL RADIO SERVICE CO. Highland Park, 111. S. HAMMER RADIO CO. 303 Atkins Ave., Brooklyn N. Y. THE LOWEST PRICE EVER! C TUBE COCKADAY O 4 CIRCUIT RECEIVER These «Are GENUINE Complete Parts 1 Panel, 7x24 1 Precision Cockaday Coil 2 Amsco 26 PI. Cond. 5 Melco Tube Sockets 1 Amsco 6 Ohm Rheostat 3 Amsco 20 Ohm Rheostats 2 Ampler Grid Densers 1 Durham Var. Grid Leak 1 Amsco 400 Ohm Potentiometer 1 Bradleyleak 2 Pacent Doub. Jacks 1 Pacent Single Jack 2 Amertran Transformers Wired complete in genuine <toC AA mahogany cabinet <pot>. UU Drilled Panel, extra $1.75 o TUBE COCKADAY O 4 CIRCUIT TUNER 2 Amsco Swith Levers 3 48,000 Ohms Lavite Resistances 1 .00025 Dubilier 1 .0005 Dubilier 1 Pr. Como Dup. P. P. Transformers 1 Panel. 1x12 I Sub Panel, 3x2 Vi II Switch Points 4 Switch Stops, Wire, etc. LIST PRICE $72.45 PRICE «)pO 1 •UU 1 Precision Coil. 2 Amsco 26-P1. Cond. 2 Dubilier .00025 Fixed Condenser. 1 Amplex Grid Denser. 1 Bradleyleak. 3 Melco Sockets. 1 Pacent Double Jack. 1 Pacent Single Jack 2 Amertran Transformers. 1 Amsco Switch Lever. SPECIAL KIT PRICE 20 Amsco Rheostat, 6 ohms. Amsco Rheostats, ohms. Switch Points. Switch Stops. Dubilier .0005. Uradleyohm. Panel. Baseboard. Wire, Diagram, Etc. $35.00 Wired complete in Mahogany Cabinet $53.00 Orders over $5.00 will be shipped prepaid. Money orders or C. 0. D. Not insured unless insurance charges included. Write for Price List. phonograph records, and sheet music before the public than to follow up the broadcast with advertising in the papers the Radio receiver people read. Start a campaign and go after the music publishers for advertising, but please, oh please, do not include this advertising with the broadcasting. — W. C. Mongold, Fayette, Iowa. .Lighthouse Keeper's Set After following the diagram for the Lighthouse Keeper's set, as published in Radio Digest on March 1st, upon completion of the set I tried it out and it started right out to deliver the goods. I am so very much pleased with this set that I feel that I owe it to you to tell you what good luck I am having with it. I am using a WD-11 tube, a 24 plate variable condenser, vernier type, 6 ohm rheostat, and a. .00025 mica receiving condenser with 3 megohn grid leak. The Bracfl&deafc THE PERFECT GRID LEAK $1.85 Condenser 35c ige Vito 10 Megohms This remarkable grid leak has leaped to prominence within three months, and is pronounced by leading radio engineers, such as Crosley, Kennedy, Cockaday, Flewelling, and others, as the most perfect of grid leaks. It is not a cheap makeshift. It is the best that has ever been made. Try one, to-night, and be convinced. Electric Controlling Apparatus 290 Greenfield Ave., Milwaukee, Wis. Mfn. of Universal BradUystat SPECIAL INTRODUCTORY PRICE For a limited time only, and to introduce this new and superior Storage "B" Radio Battery to the Public, we are selling it for $4.00. Regular Retail Price is $6.00. You save $2.00 by ordering NOW. A finer battery cannot be built than the World Storage "B" Battery (12 Cells -24 Volts) To t A million homes with Radio Sets— and to countless millions of prospective buyers— this WORLD Storage "B" Battery brings a new conception of battery economy and performance. Here is a battery that pays for itself in a few weeks— will last for years and can be recharged at a negligible cost. And you save $2,00 by sending the coupon now. A SUPERIOR BATTERY Equipped With Solid Rubber Case The Solid Robber One-Piece Container 13 an Exclusi ve Feature with the WORLD Storage "B" Battery. An insurance against breakage, acid and leakage. Has heavy duty 2 1-8 in. x 1 in. x 1-4 in. plates and plenty of acid circulation. Extra heavy glass jars allow ready observation of charge and prevent leakage and seepage of current. It holds its charge, while idle, at constant voltage. You will find this battery a boon to long distance reception. It does away with a great many noises soof ten blamed on "static." Clip and mail the coupon today. SEND NO MONEY Just fill out the coupon below and we will ship day order is received. EXTRA OFFER: 4 batteries in series (96 volts) , $15.00. Pay Expressman after examining batteries. 6 per cent discount for cash in full with order. Sead the coupon NOW and save $2.00. WORLD BATTERY COMPANY Makers of the famous World Radio "A" Storage Battery 1219 S. Wabash Ave., Dept. 76, Chicago, III. This Coupon Is Worth $2.00 WORLD BATTERY CO. Dept. 76. 1210 So. Wabash Ave.. Chicago, III. Gentlemen: Please ship the followloK. Euress C O. D.. Sub. ject to Examination: World Storage ,'B" B-i'terfea. Price, $4.00 each, or $15.00 for a complete set of lour batteries 196 volts* in 24-volt unite. Name..... first evening I tuned in the following stations : WEAN, W JAR, WSAD, WBZ, WHN, WDAR, WCAE, WDAP, WSB, WOS, WJAZ, and WGR. The next evening in addition to the local stations we heard WGY, WHN, KDKA, WBZ, WDAR, WSB, WDAP, and again the next time WJAR, WEAN, WSAD WGY, KDKA, WBZ, WTAM, WSAI, WCAD, CKAC, WJAZ, WSB, and WDAP. We have been using this set now about a month and as soon as we migrate to our summer cottage down Narragansett Bay this set goes too. Even as I write this my wife interrupts me to come and listen to a male chorus at station CKCH sing •Annie Laurie," at 10:20 p. m.— Wilmarth H. Colwell, 5 Lexington Ave., Providence, R. I. RADIO By Mail OUR NEW CATALOGUE Is the most complete list of IM _^a RADIO SETS and PARTS I J'jSm1 ever published and contains Jn&>\ Pit hundreds of articles which "40/O BY rAM^J are used daily and are not " tit— ""^ sold by many Anns. •Im\ BE CONVINCED I Wr~^., Send 4c for your copy to day and let us prove it. TELEDYNE KIT 1-Special tuning coil and E-Special R. E. coupler (Wound with green silk" wire on BAKELITE tf"C Oft tubing; complete with brackets, etc <j)U.J3 COCKADAY PARTS ! '. COILS— Green silk wire on BAKELITE $ 3.19 LAVITE resistances, 48000-ohms 96 AMPLEX "Grid-densers" 89 AMSCO 26-Plate vernier cond 3.59 Bradley-Ohm (No. 10. No. 23 or No. 50) 2.90 COMO duplex audio transformers (per pair) 9.29 ULTRADYNE KIT Consists of 1-type "A" Ultraformer, 3-type "B" Ultraformers, 1 tuning coil, and I 03 Oft CO cillator coil (coils silk on BAKELITE) t.v.30 Set of 4-Ultraformers separate $16.76 ERLA REFLEX PARTS EBLA reflex or audio transformers $ 3.89 ERLA "SELECTOFORMER" 3.89 ERLA Crystal Detector 79 RATHBTJN condensers, 11-Plt., $2.39. 23Plt.. 2.79 HARNESS REFLEX KIT Consists of 1-T1 and 1-T2 special wound transformers mounted on condensers (coils green CC 70 silk on BAKELITE Tubing) yJj.lV Transformer coils separate, per pair $ 2.94 BURGESS large 22y3-V "B" Batteries $ 1.89 BURGESS large 45-V "B" Batteries 3.68 •'SUPERDYNE" Special coupler 4.89 "Gold Seal" Homecharger. $13.22. Valley 13.95 HAMMARLUND CONDENSERS Plain, 11-Plt., $3.78 23-Plt., $4.19 43-Plt., $5.04 Vernier, 11-Plt., $4.62 23-Plt., $5.04 43-Plt.. $5.88 Prices F.O.B. St. Louis, Mo., Cash or C.O.D. SIMPLEX RADIO SALES CO. 1808 Lafayette Ave. Dept. D ST. LOUIS, MO. Save at Modell's Some of Our Many Bargains LOOP AERIAL D76. Can be assembled by anyone in five minutes; all wood parts, wire and binding posts included, complete, 69c RADIO SOLDERING IRON 9 D83D84D85D86 Indispensable for the man who builds his own sets DI09 $1.95 DI33 — Soldering Paste, tube 25 PLATE CIRCITJT "B" BATTERIES D80— 22y2 Volt Small $1.15 081—22% Volt Medium 1.45 082— 22y2 Volt Large 1.95 The highest grade of battery made at prices lower than they ever were sold before. -45 Volt Medium 1.95 -45 Volt Large 2.50 -45 Volt Extra Large 3.50 -360 Hour l^1 Volt Twin Double Duty "A" Battery i 75 WOOD CABINETS Highest grade Mahogany finish Cabinets. Hinged top. These cabinets are being sold at less than one-half regular value. D57— Wood Cabinet; panel size 7"xl0", each.. ..$2. 50 D58 — Wood Cabinet; panel size 7"xl2" 2.75 D59 — Wood Cabinet; panel size 7''xl4" 3.00 D60 — Wood Cabinet; panel size 7"xlS" 3.50 D6I — Wood Cabinet; panel size 7"x21" 3.75 D62 — Wood Cabinet; panel size 7"x24".... 4 00 Baseboards (Mahogany Stained) for use with above cabinets 7x10 25c 7x14 35c 7x21 45c 7x12 30c 7xlS 40c 7x24 50c America's Greatest Radio Retailers *I9I FULTON *7I CORTLANDT BROOKLYN Cor. Church Near Washington **8I Flatbush Ave. '14 CHURCH ST. 15 Whitehall St. Post Radio Elec. Cor. Cortl. Cor. Stone St. Corp. '"Open Sat-. Ev'gs)»*24l W. 42d St. («»Open Ev'g) Bet. 7th & 8th Aves. MAIL ORDER DEFT. 58 Church St. NEW YORK CIT¥