The evening world. Newspaper, July 27, 1922, Page 18

By Capt. Robert Scofield Wood. QUESTIONS AND ANSWERS | \ cesnaseneemmanesaninnensssnsesoeensna RB P., Brooklyn—“In assembling & ‘unft consisting of two steps of audio fre- quency is It necessary to have tho trans- formera between the lamps, as is shown in the hook-up, or can they be placed behind the lamps? I am working on a eet that I want to fit In a small hand Dag, and find that if the transformers are placed between the lamps the outfit will be too lang for the suitcase. There is plenty of roam behind the Iamps in the depth of the box. Is it necessary to cover the wires with spaghetti tubing ff the wire is stiff?” Answer—The trans. formers may be placed in any conveni- ent position, providing the connections are all properly made. In the schematic diagrams it is customary to show the transformers between the tubes for the sake of clarity. You may put the trans- formers behind the tubes and utilize the depth of your suitcase, In placing the transformers be sure to set them up at right angles to each other. In doing this you will avoid a lot of squealing and howling that otherwise would be Present. If your wire is of the self- supporting kind it will not be necessary to use the spaghetti tubing except !n cases where there is a possibility of two wires touching. How many B bat- ry to supply the plate voltage to a set employing three lamps? ‘The detector is a UV 200 and the am- Dlifiers are each UV 2018." Answer— ‘Three 2213 volt B batteries will be sut- fictent If you do not try to operate « loud speaker (not of the power ampl!- fler type). If you use a loud epeaker it will be necessary to raise the piate po- tential on the last step to possibly 80 or 100 volts. R. Hall.—“With a plate and grid variometer in the circuit of a detector amplifier set, using one tube, will it be advisable to connect a variable con- denser across the secondary of the vario-coupler or will this be complicat~ ing the tuning without any really worth while results?” Answer--A vari- able condenser will be a most advis: addition to the set as the finest de of tuning will not be obtainable with- out it, Fan—"What is meant by a flat top aerial? What is a counterpoise and how is it used? What is meant by the term radio frequencies? Answer—A flat top aerial is one in which the suspended wires are parallel to the surface of the earth. A counterpoise is an arrange- ment of wires stretched above the earth but insulated from it and placed di- rectly under the aerial. It is used with transmitting sets to take the place of ground connection. It has no ad- vantage over an ordinary ground when used with a receiving set, Radio fre- quencies meats vibrations which have a period of over 10,000 cycles per second. ‘The sound of these vibrations is not audible to the unaided ear. L. D. D., Bast, Hampton, “Which will be the more s one of the instruments made up by some radio manufacturer home- made set which costs the same amount of money? Will you recommend u good book that gives the details of radio construction?” © Answer—This question has been answered before but for the benefit of some fifteen readers who have asked the same question within the last month we will go into it again, To begin with are you handy ‘with tools? Do you understand the ele- ments of electrical construction and wiring? Do you understand radio cir- cults? Are you willing to experiment with a home made set possibly for weeks to get it properly operating? Do you enjoy assembling things mechanical and electrical? If you can answer thete questions in the affirmative by all means assemble your own set as it will be far superior to any set costing @ similar amount of money which can be purchased at any good radio supply shop. If on the other hand the ma- Jority of the questions are negative in ‘na far as you are concerned by all means buy the ready made set. If you attempt to assemble the set and are not com- petent along mechanical and electrical lines the Job will be distasteful to you and the results will not be gratifying. Books on radio construction can be had at the nearest public library. Mass.— iceable, D. S.—What should be the capacity bf a variable loop condenser when used with a three-foot loop and three steps of radio frequency? Should the tubes for the radio frequency steps be hard or soft?’ Answer—A variable con- denser of .00)6 Mfds., will serve your purpose, The tubes for the three steps of radio frequency should be hard; use UV 201's, Bx what is the function of a grid Jeak and where can it be connected in the circuit of tal detector? In vario coupler differ "* Answer—A grid inductive, wondenser to permit the cessive electrical charges, thus assur- ing a stable control and keeping the flow of current to the grid constant under all operating conditions, It has no place in a crystal set, and as its name implies, is connected in the cirouit of a vacuum tube set. A coupler differs from « variometer in that the connection between the stator and rotar of the vario coupler is made by induction, there being no direct wire connecting the two, whereas the vari- ometer is composed of a coll of wire on @ stator connected in series with the coll of wire on -the rotar Billy, Brooklyn—“What makes the @quealing noise in a set when the lamps are tuned up to increase the loudness of the incoming concerts? Is there any way to avoid or correct this trouble, as it is very annoying and Often results in the loss of a part of the evening's fun?" Answer—The noise you speak of is the tube’s way of an- Bouncing that it {# Setng hurt. That founds funny but nevertheless it ts the truth, When a damaging amount of excess power is forced through the tube it wets up a squealing noise which is an indication that unless the current backed off very soon the tube will out. The brilliancy of the light does not indicate the intensity of the Very often the vest reception ‘had when the filament ts just dimly led and is just giowing. The only way of avoiding it ‘s not to turn your rheostat so high and be contented with the intensity of the signais when they are good and clear. Do not clear up Your reception with a rheostat; there ‘are other instruments in the assemblage tor that purpose. v BB. MewP is it possible to receive THE EVENING WORLD, THURSDAY, JULY 27, 1922, 5 toll P. M all reports from 3 to 8 P.M. | (e )"Thank God for a Garden ie every hour from 11 A. M. to Lectures by Prof. F er reports at TL A. M1, 6 and hes age eet will Sup} Piano solos ty Mrs, Re M ack Rabbit Stories, by Wi n i : *, M.—Maud Hall of the Pict Literary evening conduct-| Review will give the third of a 6 " R o ditorial staffs of the Out-Jof talks on “Fashions, Houseker the evening concerts on an aerial that] ’ ntifia American and Harper|and Other Subjects of Interest could be erected over a canoe, using a thers. Women.”" crystal detector and two pairs of| 9.00 P. M. (New York daylight saving} 3 M.—Songs by Mra, Walter H phones?” Anawer—That depends on|time)—Islow by blow description from] (1) ‘The Waters of the Minneton' your distance from the broadcasting neside of Boyle's ‘Thirty Acres, | (b) “Lassie,” (c) “The Garden of Sum Station. If you are only a few miles of the Nghtweight cham- | in away you should be able to get the con st of the world,| 6.15 P. M.—Popular songs by Jack certs, but on the other hand, if you are ard and Low Tend-|Glogau and W. White. Among ¢ more than five or six miles removed il be given the artists will sing sc from the centre of broadcasting the compositions. chances of getting the music and news theart,” (b) ¢ will be very slim except under excep- & Wireless to ¥ tional conditions ing him on his descrip- fer.’ (a) “I'm Hung » through WJZ, of the Britton- | Girls.” Leonard fight. 645 I. M—Piano solos, (2) "M Indiana Home," (b). “Stumbling.” WOR—Newark ; | 360 Metres WW2Z—Newark Features of the day " ) 360 Metres. Agricultural reports at 12 M. and ¢ 30 P. M.—Song Recital by PM Walter Hill of Bast Orange, ae 1.15 P.M, to 2.15 P. M.—Son, Arlington official time at 12.55 to 1 P. rtd (ay y by dna Beatrice Blo BOD! The nuisance of opening a messy tin can and the immediate need of transferring its contents to prevent spoiling, are all done away with when you use ROGERS RICHEST MILK. The jars are always kept for table and other home uses. Reason This Out! You know milk is most susceptible of all foods to contamination and spoilage, and when you buy it in a tin can you must empty the contents at once. The care you take to protect that milk should have been done for you at the factory as is the case with ROGERS RicHest MILK Fresh Packed In Glass Jars Every jar is vacuum sealed in sterilized glass, You run no risk of getting milk that is lumpy from imperfect packing or that has turned dark from months of storage or shelf wear. When you buy ROGERS RICHEST you see the contents are fresh and rich before opening. FOR BABY FEEDING it is much superior to ordinary condensed milks, not only because of its hygienic feat- ures, but because it is richer in milk solids and contains less sugar. Ask your doctor. BETTER AND MORE ECONOMI.- CAL-—than bottled milk for every home use except for drinking purposes. No waste: serve direct from jar. No icing. Creams quickly and easily in the coffee cup and blends perfectly in cooking and baking, because it is richer in butter fat and other milk solids than any other milk sold. ICE CREAM FREEZER FREE. Send us 100 labels from ROGERS RICHEST MILK and we will give you absolutely free a $6 Auto Vacuum Freezer. Mail labels to Rogers Milk Corp., 25 West 43rd St., New York. The Following Dealers Will Supply Yo Daniel Reeves, Inc. T. J. ey Andrew Davey, Inc. Busy Bee Stores Progressive Grocery Co. R. H. Macy & Co. Sitcan A. F. Beckmann & Co., Inc. National Grocery Company Bloomingdale Bros. REAL ESTATE AT AUCTION. |_REA eT REAL ESTATE AT AUCTION, _ Only 150 HUNT’S POINT LOTS On 156th St., Tiffany St., Randall Av., Truxton St., and Adjacent Thoroughfares. Remain to be Closed Out Conclusion Absolute Auction NEXT SATURDAY, JULY 29th at 2 P. M. and 8 P. M. in HUNT’S POINT PALACE, Hunt’s Point Square, Southern Boulevard and 163rd St. REMEMBER!—These Hunt’s Point lots have been held for more than 30 years in one ownership. Their division into several hundred individual ownerships should mean active trading, building and population in this Hunt’s Point section. Get aboard on this conclusion sale! Seize this opportunity! By order of the New York City Freehold Estates Corp., Ltd. 21 IRONMONGER LANE, LONDON, ENGLAND. All of the Remaining Unsold 995 3 Hunt’s Point LOTS New York City 70% R. CLARENCE DORSETT, Atty., ON MORTGAGE TITLE POLICIES FREE 25 Pine Street, New York City TO VISIT PROPERTY, or ATTEND SALE, take Lexington Ave.-Pelham Bay Park (East Side) subway to Hunt's Point Ave. Station. 67 Liberty Street New York City Telephone Cortlandt 0744 Beaming Eyes.” (b) “The Home Road oJ immer music, as rf ‘orded for the Am pico, by great pianists. ‘Timely Hints from "Vogue," courtesy of Nast publ cations — subject; “Mid-Season MMi PRACTICAL HAIR CURLERS Three Sizes For Long or Bobbed Hair Sold at notion counters, If your deales does not carry them, write TUG RH 20 9 abla ate SEND FOR BOOK OF ASTLE syaeisiaiy RS ABOVE 3 American Watch DiamendCo, Maden isse Vc 303 F rit Ave. Take Elev Tel. Cort, 6807. HELP WANTED—MALE, WANTED, MACHINISTS, BOILERMAKERS, BLACKSMITHS, CAR REPAIRMEN SKILLED IN RAILROAD WORK; STEADY EMPLOYMENT; STANDARD WAGES AUTHORIZED BY UNITED STATES RAILROAD LABOR BOARD. REAL ESTATE AT + AUCTION. oF APPLY TO CENTRAL RAILROAD COMPANY OF NEW JERSEY, Cc. E. CHAMBERS, SUPT. MOTIVE POWER AND EQUIPMENT, JERSEY CITY, N. J. STEADY EMPLOYMENT AND | GOOD WAGES; MACHINISTS, | REAL ESTATE AT AUCTION. See BLACKSMITHS, SHEET METAL WORKE CARPENTERS, BOILERMAKERS, ELECTRICIANS, CARMEN, MECHANICS & HELPERS IN ALL TRADES; WORK Is 0 or TOWN Ar’ VREE EMPLOYMENT SERVICE, 482 7TH AV. NEAR 84TH 667 6TH AV., 8AM. TO8P. M Wanted, Mechanics and Helpers Permanent positions are open at the following rates, authorized by the United States Railroad Labor Board: Machinists, ) \ { —T0c. ner hour. —4To. per hour. helpers, lectern Workers’ helpers | REAL ESTATE AT AUCTION. REAL ESTATE AT AUCTION. Department of Finance, City of New Pork Ghasles 10. Creag Comptratier} ; . July 24th, 1922. In orderto dispose of numerous prop=- erties which The City of New York no longer requires for public purposes, such as old school houses, old police stations, fire engine houses, and miscellaneous real estate, improved and unimproved, the Commissioners of the Sinking Fund have inaugurated the policy of selling such properties at public auction. —— The results of this policy will be; first, to decrease the expense of carrying unrequired property and thereby reduce taxa~ tion; second, to restore such property now exempt from taxation, to the tax rolls and thereby increase revenues; and third, to permit of the improvement and development of such city properties for private business, industrial and residential uses. All persons desirous of investing in New York City real estate will find it to their advantage to examine these properties. Everyone is free to bid and the auctioneers will make the sale to the highest bidders. The terms are liberal, in order to permit those of moderate means to invest. The City will allow 75 per cent of the pur- chase price to remain on bond and mortgage for 5 years at 5 per cent interest and the principal may be paid at any time. An illustrated catalogue containing the terms and conditions of sale and a full description of each parcel, has been prepared and may be had upon application. (Signed) CHARLES L. CRAIG, Comptroller of the City of New York. The City of NewYork CHARLES L. CRAIG, Comptroller Announces the Sale by PUBLIC AUCTION 202 Parcels ae Real Estate in the Boroughs of Manhattan, The Bronx, Brooklyn, Queens and Richmond The sale of these properties has been authorized by the Commissioners of the Sinking Fund. They include real estate no longer required for City purposes such as: Old School Houses « Old Police Stations Fire Engine Houses Miscellaneous Real Estate : Seventy-five per cent of the purchase price, or such portion as the purchaser may desire, may be paid by the giving of a purchase money mortgage and the bond of the putchaser running for five years, with interest at five per cent, the purchaser to pay the recording tax, the recording fee, and all Federal or State taxes or fees in relation thereto, except the at 5 per cent mortgage tax. The property will be conveyed by the City of New York free and clear of al tage ng assessments which have become a lien thereon on or prior to the late of sale. The sale of these properties will be held as follows: MANHATTAN, BRONX BROOKLYN RICHMOND AND QUEENS at 23rd Regt. Armory, Bed- at County Court House, St. at 69th Regt. Armory, Lex- ford and Atlantic Aves., George, Staten Island, Au- ington Ave. and 26th St. Brooklyn, August 14, 15, gust 17, 1922. Manhattan, August 9, 10, 16 and 29, 1922. 11 and 28, 1922. For descriptive catalog, terms and conditions of sale apply to AUGUSTUS J. RINN, Ap; Real Estate, Room 733, Department of Finance, Munici i HENRY BRADY, 139 West 33rd St. New York THOMAS A. HOVENDEN, 187 Montague St., Brooklyn SAMUEL MARX, 115 West 23rd St., New York. THEODORE ARCHER, 40 New York Ave., Jamaica. 67 Liberty S Be sure to see Sunday newspapers for further notice of sale and description of properties. Car Nepatrera and Mapectora— hour, Apply 8 AM. to 0 P.M. to. @upertn. tendent'a office at 1u2d Btrest and Willls Avenue, Br N.Y F, M. Clark Superintendent, New York, New Haven and Hartford Rallroad Co, ARMAMENT CHRONOLOGY CONFERENCE § FOUNTAIN OF KNOWLEDGE OF EVENTS 1922 WORLD ALMANAC Complete in Every Detail 3 5e¢ P vd ATALL NEWS STANDS AND BOOK STORES an 3 Sc PY BY MAIL, POSTAGE PREPAID, 500 Opy ADDRESS: NEW YORK WORLD a“ a“ a” a “ NEW YORK CITY