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SO0 RN TRAE STIHATED “Nema”: Increases Former Figure Arrived at in United States Survey. “Nema.” as the National Electrical Manufacturers’ Association is known throughout the trade, has added about $140.000,000 to the estimate of retail radio business done annually in the United States, increasing the estimate drawn from the Department of Com- merce dealers’ survey {0 $500,000,000. Variance of opinion is general in the radio industry as to the accuracy of the estimates based on dealer question- naires in which more than 30,000 radio dealers of the country were asked to calculate their annual_volume of busi- ness. Accepting the Government sur- vey, the radio division of “Nema" in- terpreted the returns to show that the average dealer did @ business of $11,000 1827, The Department of Commerce survey showed that $90.000.000 worth of busi- ness was done by the 25 per cent of dealers submitting returns. leading to the calculation that $360,000,000 worth Tepresented the entire retail trade. “Nema,” which furnished the dealer list with which the Government worked, did not dispute this figure openly. but does 80 tacitly by its own estimate of a half billion dollars. The Iatter figure is more acceptable to the Radio Manufacturers’ Association, which has been vigorously criticizing the Government's figures on retail busi- ness while praising the stock<-on-hand Teports as showing the turnover trends in radio. “The fragmentarv and purely spec- ulative ‘statistics’ derived froa» the Gov- ernment report,” said Bond Geddes, executive vice oresident of the R. M. A., *were the basis of guesswork estimates used to the disadvantage of the whole Industry, and unquestionably depressing radio purchases last Fall by unduly salarming and discouraging dealers and iohbers. ‘The retail statistics survey as not been indorsed by the R. M. A. and cannot be successful or reliable without more complete returns.” Mr. Geddes thinks that manufacturers’ pro- duction statistics would be a better guide. “Nema” is not criticizing the Govern- ment figures, but makes some calcula- tions of its own. Its orcanization is on 8 basis of keen rivalry with the R. M. A., but it does not choose to be drawn into ® trade controvarsy. The “Nema" report further estimates that there are 8.600.000 radio sets now in use in the Umited States. of which 8t least 1,000.007 are said to be A. C. tube sets. It points out that the dealers of New England, North Atlantic snd Great Lakes States had on hand last January 1, the date of the Government survey, about one-half the total stocks of battery sets and about three-fourths of the stocks of A. C. sets. These are the regions whers the highest radio broadcasting power is employed, it stated. A feature of the broadcast of the Cities Service Concert Qrchestra through WRC at 8 o'clock tonight will be three dances from the rollicking opera of the sea, “Tom Jones,” by the famous composer Sir Edward German. The program has been arranged and will be directed by Rosario Bourdon. The Cities Service Cavaliers will assist ®s _usual. . Louis Katzman and his “Magic Car- rey." voyagers have a busy evening be- fore them in the Whitall Anglo Persians broadcast to be heard at 9 o'clock. The Oriental atmosphere will. of course, pre- dominate. as will be evidenced by “The Call of the Desert.” “In an Oriental Garden” and “Singapore Sorrows.” The %r:msh-mneflun selection, “Lady of \m;muu’ the m:;lc of Dlxllc).o as represent n Myddleton's “Down Bouth,” also will be played. The broadeast of the Palmolive hour ot 10 will insugurate a new policy. At t request hour at the end of eachi: -month period of its broadcastd will be a feature event. The first of these is scheduled for this eve- ning. Bach program will be & resume of the most popular numbers performed by the Palmolive Orchestra and quartet 85 well as soprano and tenor selections by Olive Palmer and Paul Oliver. ‘The Lord Calvert Coffee Quintet will be heard gt 9:30 o'clock in the following : Oountry dance, from “Nell Ge: from ) : “Hungarian v.” by Liszt; “Humoresque,” b: Tschalkowsky; “Love Sends a Little Gift of Roses.” by Openshaw, and “Scherzo From Quintet,” by Schumann Kin Carroll and Erma Calvert will be the featured artists in the Star Radio ;mrrllmk t0 be heard through WRC at o'clock. The Arthur Jordan Music Forum, principal attraction tonight of WMAL, program of solos and duets: a supper @ance program by Horace Walker and his orchestra, and recitals by Daligs Tucker, tenor, and Harry Relds, a pop- ular piznist of Pittsburgh. Belections from current musical com- edies, the tri-weekly children’s period conducted by Miss Evelyn Reichard “’d a u«,\imr of municipal government Mairs make up the evening program of WRHP, b WTFF has scheduled a varied musical ogram which will be interspersed with lics Representative McSwain of Bouth Carolina and Thomas C. Yager. To Broadcast Ritchie Talk. An address by Gov. Ritchie of Mary- land on “Top Much Government” af ,l @inner of the Employes’ Association of the Philadeiphis Electric Co. March 6 will be broadcast by WJZ and other biue network stations of the National Broadcasting Co. ) | RADIO'S BEST OFFERINGS TONIGHT. | 8:00—Citles Bervice hour: Or- | chestra and vocal -WEAF, WEEL, WTIC, WLIT, WRC, WGR, WCAE, WTAM, WWJ, | WEAL WEBM, KOA 46-White Rock econcert; or- chestra and instruments) WJZ, WEBZ, WBAL, WHAM, | KDEA, WILW, WIR, KYW. 00 - Wrigley Teview. solosts WIZ, WEBZ, WEAL. WHAM, KDEA, WIW, WIK KYW, WHAE, WEM. WBB, WBT, WRVA, WIAX 00 -Anglo Perstans; Oriental music ~WEA¥, WEEI, WT! WIAR, WIAG, WCBH, WL, WHE, WGY, WGKH, WCAE, WTAM, WWJ, WEBH, KOA 00 - Palmolive hour; quarterly revievi— WEAF, WEEL W1IC, | WIAR, WTAG, WCSH, WLIT, WRC,'WGY, WGR, WOAE, WTAM, WWJ, WEAL WGN, VIHAB, WM. WEB, WET 06 Thirty Minute Men wp - ular hits WOR, WCAU, WEAN, WMAJK, WIAS, WAIU, WOHP, WNAC, WPBL, WCAO, WADG, WERC KABIO eaperie ment ¢ home. PR et SEMVIUS en whe bete the o Al ot THE_EVENING 'STAR, WASHINGTON, FILAMENT CIRCUITS CHANGED FOR ALTERNATING CURRENT BY C. B. BUTTERFIELD. T Ansocialedl Press Radio “Bditor. Some changes in filament elrouit wiring are necessary when llurnlth& current receiving tubes replace those the direct-current type. Two _kinds of AC tubes are avail able. One has a directly heated fila- ment, while the other contains a separate heater which is not physically connected into the receiver circuit. It nerates electrons communicating at to the fourth element in the tube. Some heater tubes have five prongs. others, filament wires are bro at the top of the valve. Precautions Necessary. In feeding raw AC current into the sensitive receiver, several precautions are necessary. The fllament wire should be twisted lamp cord or similar cable. For best results it should be in- cased in a tubular shield, although this is not absolutely necessary. However, this wire should be kept as far as pos- sible from grid and plate leads. The heater tube functions better as a detector than that with a directly connected filament. This is due to the fact that the heating element is isolated to a certain extent. The de- tector circuit is more subject to AC hum than other parts of the receiver. Grid returns to the three-element AC tubes—the 226s—are made through In out & one-half microfarad " by-pass con- denser, used to prevent: grounding of the house lines and causing a pos- sible short circuit. Connection of the Olament is by a voltage divider, or a three~tapped resistance. ‘The resistance should be rated at least 20 ohms and of a type denlfmd for alternating current, preferably a potentiometer. This is ‘tonnected across the filament leads with the grid return, after coming f{rom the con- denser, attached to the movable arm. The resistance is adjusted until the AC hum is at its lowest point. Transformer Needed. No_rheostats are placed directly in the fillament circuit. Such units, if used, are cut into the 110-volt supply line, which also contains a power switch. A stepdown transformer is required to cut the 110-volt current to the cor- rect value. The 226 uses 1!'3 volts, while the heater 227 needs 2! volts. No voltage divider is required for the 227, as the grid return is made to the fourtis element. Negative B and positive C battery connections go to the grid return lead rather than to the filament ¢drcuit as in direct current sets. Some hum will be noticeable in an AC receiver, but as a rule it is not troublesome, being drowned out when & signal is being received. LONG RANGE RADIO ENTERTAINMENT FRIDAY, MARCH 2, 1928. Programs “andard. reiane 9:30_La France Orchestrs. 10-00—paimolive hour. 11:00—ben Be ‘head Ino Orcbestra. Orchestr ., m)—Godh!;l Lmflan A0—White Rock concert, 8.00—=Wrigley review. 1004 String Trio. 10 30—Around the Piano. 11:00—Sjumber must E 422.3—W Newark—710 s 1?—01-1 King ch 7 00—Commuodore Ensemble. 7 A5 X 9:00—True .6—WPG Atlantie City—1.108 -Dinner concert. &:90—Studio. 0—Musical club, Dafty Dills Three dance orchestras. 283.5—WBAL Baltimore—1.050 Rock congert. Wrislev review 10:00—Ensemble. 2—WEEI Boston—>590 = il bro €8 Service hour. -Ang! Parch Girle. ur. 0—String quartet. 0—Orgen. G0—WOR prozrams (2 hour .8— WG 1 3p—Dance grchesiry. 0n—Citfes Service hour. #:00—Anglo-Per #:30—La France Orchestra. 10°00—Palmolive hour. 845.1—WMAK Dufislo—350 30—Dinner music. 00—Clinton muyic an. |4 veriod. ur Ofchestra. . w York—930 entra 15_Varions features. 9-06—RBoxing bou 11:00—Tea Garden Orchestra. 270 2—WM(A New York—810 R:00—Littmanp's Entertaings 9:30—Eidney Coreover. 15:da—Ruinbow Ina eorge S. 1 xififij{}".’i‘" Quartet 260.3—W [J 7 i "&l trio. i Dwarty. B b —EemeT, WOR " nours). 11 :99—Orchest $03.2—WEL-WHIT Rhiladeiobis—140 2-9 Limerieks - dance m B-00—itles Service Bour. #:00—, Frainy : France Orihestra. —Paimolwa hour 0H0—Symphonic Orcbeptrs. A—WOO Philadelvhig—860 —Duner muplc Miisteal dmtire 40 —(peratic” Ensemble, 00—Sangs. 3 30—Modern dance’ muse. A15.6—KNKS Pittahnrgh—030 €1 5—Dinner music: yadress. 7 an—Ror! Tre' La 8 20w otk oot 4 Dihe, o G0—Wrigley Teview. 10:00—Trio. 379.5—WGY Sehenoet 8 30—Syracuse Usivetyity program. § 2y ety eree o Antio Persing 30—Catbedral Eehoes, D0—Paimolive hour 483.6—WIAR Proyidence—620 8:05—Muyieal program e A1ig 10 Per 10 OO—Vaimolive hour —WHAM Roehester—1,030 s Univermty., o 10 ram f—White Hock conrert Wrikiey review isater aymph [owe s Orehies § u—pngio Verel 1 i Pk S LB Character Loans The Services of “Your Bank” are ilahl i Tnaighig 1o all in the servies Ueve «l o made Tor s verted of oty Y Dupont ot And When L7an is Paia u Also Havy $368.00 $203.82 46 925440 m 510 J4ely ot Battgries o 3 y e mehuis RADIO Service Shop Rapert h'lyih H"l:‘llu Bets I 1013 Eoe BL DW. Mais 3438 Departmental Rank “Your Bank” Dader V. 8 Goverumen 1714 Penna. Av repared by the Associated Press. time. Meters on the lejt of call letters, kilocycles on right. Scheduled for Eastern UTHERN 206.9—WWNC Ashesille—1.010 7:00—Dinner music. 4I5.9—WSB Atlanta—630 Army night, Q0—Wrigley review. 10:00—Palwoiive hour. 2UI8—WDOD Chattanoora—1.230 rmfla :30—HRrunswick half hour. :00—Studio program. 340.3—WJAX Jacksonvilie—380 7:00—Orchestia and assistants. 11:00—Danes music. 322.4—WHAS Louisville—030 R.30- mes Speed: studio program. b (i) 10 :00—Palmoiive hour 336.0—WSM_Nushville—8no 2:00—Wrigley review 10:00—Palmolive hour. 249.9—WCOA Pensacola—1.200 7:00—Instrumental trio, R a.. program. 234.1—WRV A Richmond—1,180 7e—Orchestra. 1 uarket. B:00—Wrigles review 1001 Musical program, 11 :00—Orchestra. 12:00—Casry Me Back to 0ld Virgiony. TKAL. B26—KYW Chicago—>530 8:30—White Rock concert, 11:00—Movie club. 11 50—3Serenades 1 Cincinnati—s3a 6:00~-Al and Pete. 7 00——Orchestra. H0—Thein” Orcheatra, U)—Paimolive hour. chestra. 309.8—WTAM CI Vi Cavale h B00—Cities & 9:00—Anglo-Persians. ranee Or olive b m Vhi K concey 9.00—Wrizley review 10°00—Orch: atie. 1 stfing quartet. Y82.7—WWJ Detroit—830 8:00—Dinner musie. 7:00—Michigan night. Ro00—Caval 0 WESTEKN. 352.0—K0A Denver—02Q d. 10:00—Shopmen 11:00—KOA Orche 4 1. Angel 3 ¥ Symphonet. 384.4—KGO Onkland—780 ry Lane, Tune In On CAll?Vll!‘.‘ll)!‘l' (OFFEE Hours of Music W. L. P. Thursday, 8 P.M W.R.C. Fri(!ay_,O :30P.M, cup that cheers. ,The musle that charms. Okay Radio Co. 417 11th St. N.W, Fr. 2068 New and Improved A Five-Tube Set Complete 349.50 $5.00 Down $2.00 PER WEEK No Finance Chyreo NOTHING ELSE TO BUY! —You Get— FRESHMAN SET_ FIVE TUBES BRANDES, §. R. 8. OR TOWEB CONE SPEAKUR SIX-VOLT STORAGE, 100-HOUR 90 VOLTS OF "R" 4% VOLTY "C" AERIAL EQUIFMENTY FIVE-WIRE C@__l.! GUARANTEED "ARSOLUTELY LocalRadioEntertainment Friday, March 2, 1928 NAA—Washington Navy Yard (4345 Meters—690 Kilocycles). 5 p.m.—Weather Bureau reports. 7:45 f.m ‘'Ventilation in the Home,” by Public Health Service. 9:55 p.m.—Arlington time signals. 10:05 p.m.—Weather Buresu reports. WRHF—American _Broadcasting Co. (3224 30 Kilocycles). 5:30. pm.—“The Land of Nod,” by Miss Evelyn Reichard, assisted by Mar- garet Beddy and Margaret Gilligan. 5:50 p.n.—Resume of District govern- ment affairs by James E. Chinn. 6 p.m.—Selections from musical com- edies. 6:30 to 7 p.m.—Musical program. Early Program Tomorrow. 10 a.m.—Household talk. lo:;flm a.m.—Sexton halt hour of musie. 11 to 11:30 a.m.—Advertisers’ period of music. WMAL — Washington Radio ' Forum (241.8 Meters—1,240 Kilocycles). 7 p.m.—News flashes. 7:15 p.m.—Dallas Tucker, tenor. 7:30 p.m.—Horace Walker and his orchestra. 8:30 pm.—Talk on the Chamber of Commerce Industrial Exposition, by Dorsey Hyde, jr. 8:45 p.m.—Harry Relda, pianist. 9 pm.—News resume by Ludwell Denny. 9:1{ p.m.—Arthur Jordan Music Forum, featuring June Moore, Soprano, and Ramon Abario, baritone. 10:15 p.m.—News flashes. WTFF—The Fellowship Forum (202.6 Meters—1,430 Kilocycles). 7:30 p.m.—Phil Ordwine, tenor, 7:45 p.m.—Kallipolis Grotto Dance Orchestra. 8:30 Dm.—TnX‘l: be anprcs'n'.lMV! McSwain of Sout ‘arolina. 8:45 p.m.—Popular songs by Mildred Monk. 9 p.m—Helen Kiesler Jurden, reader. 9:156 p.m.—Popular songs by C. E. Sebastian. 9:30 p.m.—Old Time Trio. 10 p.m.—Fellowship Forum baritone. 10:16 p.m.—To be announced. 10:30 p.m.—Talk on Boulder Dam by Thomas C. Yager. WRC—Radio Corporation of America (468.5 Meters—640 Kilocycles). + 3:15 p.m.—Studio program. 3:30 p.m.— United States Marine Band Orchestra. 4:45 p.m.—Beginners’ course in French by Philip Molt. 5 p.m.—Hofbrau Orchestra. 6 p.m.—Waldorf-Astoria Orchestra. 6:30 p.m.—Motion picture guide. 6:35 p.m—Waldorf-Astoria Orchestra. 7 p.m.—Star Radio Co. program, pre- senting Erma_Calvert and Kin Carroll. 7:30 p.m.—Mayflower Orchestra. 8 p.m.—Citles Service Concert Or- chestra and Cavallers. 9 p.m.—Correct time. 9 n.m.—Whittall Anglo-Persians. 9:30 p.m.—Lord Calvert Ensemble. 10 p.m.—Palmolive hour. 11 p.m—Weather forecast. Early Program Tomorrow. 6:45 a.m.—Tower health cxercises. 8 am.—Federation morning devo- 8:15 a.m —Parnassus Trio. :30 to 8:45 a.m.—Cheerio. i 11 a.m.—Congressional Club's cook's our. 11:15 a.m.—Radio Household Insti- tute. udio program. lothers Old and New," e e Smith. 12 noon—Organ recital. 12:45 p.m. — Waldorf-Astoria chestra. 1:30 p.m.—Palals d'Or Orchestra. 2:30 p.m.—Hofbrau Orchestra. Or- = >esthiiente New Units Being Built. Use of AC in receivers has necessi- tated rheostats and potentiometers ‘| which would handle the heavier cur- rent « Various manufacturers have respond- ed to this requirement by bullding such units. KOLSTER RADIOS —On Easy Terns YET—you sccere the lowest possible cach prices. Enjoy one «f these fine Radios while pay- ing a little each week or month. Service That Satisfies CHAS SCHWARTZ & 708 7th St. N.W, - T All Model Kolsters In Stock TERMS DEMONSTRATIONS J. C, Harding Co. 1336 Conn. Ave. N.W. Franklin 7694 Kolster ALL MODELS IN STOCK Terms Demonstrations B&J RADIO HOP 2201 M Pleasant St Col. 7800 Roundford Jones WITH STATION WMA(Q Popular Radio Comedians Here- after Will Be Known to Publio as Amos and Andy. Correspondence of the Associated Preas, CHICAGO.—Sam ‘n’ Henry, two of radio’'s best known comedians, have left WGN, the Chicago Tribune sta- tion, and after March 19 will become Amos and Andy at WMAQ, owned by the Chicago Dally News. ‘They will come on the air at 7:11 p.m. and their skit will be synchronized with a daily cartoon. Freeman Correll are, respectively, creators of Sam 'n’ Henry. For the last two years each evening over WGN they broad- cast the adventures of two hlpry but. luckless darkies, “Their fan mall abroad. Among Chicago radio fans they became an institution. An en- tirely new scenario will be created for them at WMAQ. Correll and Gosden were old troup- They had been in production work all over the country for six years. Gosden’s home is in Richmond. Va., and Correll comes from Peoria, Il For the last two years Sam 'n’ Henry have been ‘the only entertainers out- side of New York called upon to en- tertain at the annual Radio Industries banquet. AD CLUB TO BE GUESTS. | Broadcasting Company to Entertain | | Monday Afternoon. Members of the Advertising Club of | | Washington will be guests of the Na-| | tional Broadcasting Co. at a luncheon Monday afternoon at 12:30 o'clock In the National Press Club. An inspection of the studios of WRC will follow. The principal address will he made ment of the N. B. C.,, who will outline the history of broadcast advertising | | | | | | RADIO Terms—Demonstrations Authorized Dealer Edw. R. ATEMAN 2024 14th St. NW. Columbia 3641 | electric (battery-less) walout cabinet. There is (battery-less) Kolster No batteries of any solely on A. C. house cycl Kolster battery-of from $89.50 1o $375, Power Cone Speaker payments if desired o 806 Twel © 1918, Federal-Brandes, | When you think of Kolster The Set of Real Value C. FRIDAY. MARCH. _— . SAM 'N’ HENRY NOW |Two-Dozen Tube Set Brings London F. Gosden and Charles J. || came | from every corner of America and |, ers before Sam and Henry were born. | }i by Frank A. Arnold, director of develop- || for exampl with specisl built-in cone speaker. Price, less accessories, #Kolster Electric Sets use the new A. n s 1928. . Station 2LO to Correspondence of the Associated Press. ° BUFFALO, N. Y—Two dozen radio tubes, incorporated in a receiver de luxe, sre bringing 2LO, London, to America in the daytime. This elaborate outfit, carefully de- signed and constructed by Wellington Muir of Lockport, a research engineer, is alded by an antenna approximately 600 feet long. From its loud speaker London’s signals have been fed into the transmitter of WMAK and rebroadcast America in Daytime to_American listeners. Few such recelvers have been put to- | Which would gether and it was only after much ex- perimentation that this one was evolved. While the set has 24 tubes, it contains but 12 sections, each stage of amplifica- tion using two tubes in parallel ty-two of the tubes are 201-As. The others are 210s, which are placed in the single audio stage. The volume is almost as great s a|audible entertainment hav set with two steps of audio, giving re- | sented to American listener markable clarity to the signals when the 4,500 mfiu"{h:y travel is taken into consideration. In designing his recelver Mr, Muir was careful to sveid coupling, [Which makes itself very ent whes ore than two or three tuned stages re “used. He & special cireuit the paralieling of cach stage, the' r included. In rebroadcasting 2LO a tel he line is used to connect the Muir re. celver with the transmitter of WMAK. ¢ Twen- | the loud speaker being placed before a telephone mouthpiece. this manner the chimes of Big Ben, in Tower of London, band music and othés, forms of e bhen pre- "\ See Full-Page coTy Announcement on Next Page Your Favorite Shade PEOPLES DRUG STORES Peoples _Price. ... Are Headquarters for COTY Products $1 Size COTY Face Powder 69c at Peoples 20 MILLION WOMEN Prefer and USE COTY Face Powder Peoples Drug Stores Supply the Majority of COTY Users in Washington Obtainable at All of Our Stores Regular $1 Size Boxes - COTY Face Powder 69c Headquarters—TODAY and EVERY DAY for NATIONALLY Known PRODUCTS J;tmam'ng all expectations KOLSTER ® Below is the e six-tube table model Kolster Radio, in attractive Price, less accessories, $160 o the six-tube full console electric Radio. Cabinet of walnut $250 . tubes. kind required. orn current (100- 120 vol: . lndoor or outdoor antenna. rated models ran fi' in price . There is also the Kolster at $175. Reasonable time a all Kolster equipment. There is an Authorired Kelster Dealer convewiont to you. For bis name and address ‘pbone or write; H. C. Roberts Electric Supply Co. fth St. N.W. Washington, D, C. ne. BUY YOUR K SMI 18th and Columbia / 4 Enjoy Kolfter Radio Hour of Famous Composers every Wednesday n-miug] [wcr the uation-wide Columbia Broadsasling System. At g p. m. Eailern time, e All-Electric* RADIO Turn the switch. Tune in. Listen for a few moments ta any good broadcasting and then you will know the full mesning of the name Kolster. Selectivity? You cem separate the stations. Semsi #ivity? You cen get the distance. Tome Quality’ Simply trust your ears. They require no further argument: Volume? You will never believe it till you listen, Ease of tuning? QOne dial controls it. Price? Compare valuesand ... you ... will... b Kolster . . . Electric . .. Radio. M. 2067 OLSTER FRON TH Road 523 11th St. A Product of Federal-Brandes, Inc., Newark, N. J. All Models Sold on Deferred Payments