Decatur Daily Democrat, Volume 20, Number 251, Decatur, Adams County, 25 October 1922 — Page 2

USE OF CHOKE COIL AND TRANSFORMERS Latter Provide the Most Practical Method of Coupling for the Amateur. Figure XXVIII shows the nctunl circuit of a three-stage reslstifnce coupled amplifier. The putput of such a circuit la K times K times K the input or assuming the amplification factor of each tube to be 10, the output would be 1,000 times the Input. The resistance R is the coupling resistance whose function It Is to transform the plate current variation to potential drops to be applied to the grid of the next tube. The capacity C is simply a means of allowing the potential variations across the coupling resistance R to be applied to the grid of the next tube, yet not allowing the “B” battery applied to the plate circuit of a tube to be applied to the grid of the next. Because of using the condenser to, what one might say, Insulate the grid from the *‘B” battery potential, it is necessary to use a grid leak, to keep the charge which collects on the grid from becoming excessive and reducing the plate current to zero. One of the chief disadvantages of the resistance coupled amplifier is that very high plate battery poten-

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tials are necessary. The ampliflca- i tion per tube of a resistance-coupled 1 amplifier Is not as high as it Is for some other methods but It Is stable and does not distort the input as 1 much as do some other methods used which give greater amplification per tube. Resistance-coupled amplifying may ; be used to amplify either radio or audio frequency. A method of transforming the change in plate current of a vacuum tube to differences in potential is by means of a choke coil. A choke coil consists of a number of turns of wire wound up in a multilayer coll and may or may not have an iron core. A coll of this kind offers a high impedance to the flow of alternating current, but has a relatively low direct current resistance. The choke coil on account of having a low ohmic resistance, will have a smaller method of coupling, so that lower “B” battery potential can be used on choke coil coupled amplifiers and the batteries can be of smaller capacity. The choke coll not only has inductance bur a certain amount of distributed capacity. The distributed capacity of the coil plus the capacity of the plate with respect to the filament, together with the inductance of the coil, give to the plate circuit a certain definite period. That is, the plate circuit is an oscillating circuit whose resonant frequency is determined by the total capacity and inductance in the circuit. If the choke coll be made variable, it will not only serve to transform the plate current variation with maximum plate potential variations, but it will also serve to tune out unwanted frequencies. When the plate circuit of the amplifier is tuned, the resonant frequency is amplified K times, but all other frequencies are amplified to a less degree. Another and by ir the most widely used method coupling successive tubes in a ca' de amplifier is by means of transformers. The transformer method of coupling amplifier tubes may be considered a development and a refinement of the simpler choke coil method. Coupling tubes by means of properly designed transformers will give a greater amplificnt'on per tube than any of the other methods. Figure XXXI shows the diagram of a three-stage transformer coupled amplifier, where P and S are respec- | tlvely the primaries and secondaries of the coupling transformers. The transformer as a whole is so designed as to convert the plate current variations into maximum potential variations. The plate circuit of each tube which includes the primary winding of a coupling transformer must be

asslgned for maximum power anipll-' ficatlon, while at the same time the ratio of the transformer must be such as to deliver maximum potential to the grid circuit of the next tube. The greatest advantages of thel I transformer method of coupling audio • frequency amplifiers are the high de- ; gree of amplification, the relative simplicity of operation, and the low plate voltage required. Chief among the disadvantages of the transformer coupled frequency amplifier Is noise. Also the transformers amplify different frequencies to different degrees, which means , that when this type es coupling Is used for radiophone reception, the voice la distorted by the amplifying transformers. However, from a practical standpoint, the average amateur will have better results using transformer coupled audio frequency amplifiers than fronrrany other method that can be used with the tubes and equipment now available. GREAT BRITAIN VS. AMERICA Radio Amateurs of Those Countries Pursuing Distinct Courses in Development of Receivers. Two separate and distinct courses are being followed by the radio amateurs of this country and Great Britain in the development of receiving apparatus for continuous-wave telegraphy and wireless telephony. Both courses are of the utmost Importance to the art, and each will exert a great Influence on the future of radio communication and entertainment. The American amateurs have gone along the lines of regeneration and amplification of audible signals, as well as development of long-distance

reception on short waves by the superheterodyne principle. On the other side of the Atlantic the British amateurs, restricted in their hobby by ultra-conservative government regulations, have turned their attention solely to radio-frequency amplification. This has given excellent results on all long and medium wave lengths, but its success on shorter wave lengths has depended solely upon the expert handling of the operator, who has been compelled to use tuned coupling circuits between each of the radio-frequency vacuum tubes It is too early yet to tell which of the two systems will ultimately triumph, but there is no doubt that the laurels at the present moment rest upon the American amateurs through the latest achievement of their leader, Armstrong, in the production of the super-regenerative system. — * SHORT FLASHES The enormous popularity of radio has started out a new crop of solicitors offering the stock of fake companies, with alleged glittering prospects. A general warning is being broadcast for fans to be on the lookout for these smooth gentlemen. A young radio sharp at Ogdensburg, N. Y., recently heard through his set: “Come home with the ear, Howard; I have to go to the store.” Who can say that a set in the pasture will not soon call the cows at. milking time: “Come bos!” In making a regenerative set employing two variometers and a variocoupler be careful not to get the instruments too close together. If they are, the set will howl. A set of this type should be mounted in a box not less than sixteen inches long. Dr. John J. Carty, often referred to as “the wizard of the telephone,” has had added to his many complimentary college degrees that of doctor of science, I Yale university. Doctor Carty, i who sanks as a brigadier general in the signal corps reserve, U* S. A., was given this last honor for being a radio expert. Sir Arthur Conan Doyle predicts communication with the dead by radio within four years. Sir Arthur is firm in the belief that within that time “we will have the direct communication that Edison hoped for” and that those who have passed beyond will “have transmitters In the line of ether and all that we will need will be the receiver.”

DECATUR DAILY DEMOCRAT, WEDNESDAY, OCTOBER 25, 1922

New Song to Bind Hoosiers Together "On the Banks of the Wabash" is to have a sister. No longer will this world's famous song of poetry and sentiment have to bear the brunt of globe-wide work of publicizing the glory of Indiana. Governor Warren T. McCray has urged all organizations and clubs within the State, both civic, social, political and patriotic to use this new song as a means of increasing state loyalty and of reviving State spirit among ex-Hoosiors, Indiana societies In all other states are urged by those executives to use this song in their dinners, and "Indians ; Days' Hoosiers everywhere are to carry the song to all quarters of the ■world for the benefit of their common wealth. | Paul Dressers "On the Banks of the I Wabash has been the official state i.-.eng for years, and “Sweet Indiana Home, it is figured by loyal Hoosiers will do as much as the first Indiana ,ong to keep back home weeks in all bounties record-breaking things they 'have become. Senator Watson says in his letter to all organizations of Hoosiers "The tie of singular strength binds the sentiments of every Hoosier to his Statu; this tie may be loosened by dis tance or long absence, but it is never .lost. No matter how close it binds it hould be closer, no matter how much State loyalty we have we should have more. Lore and affection for rolling . fields and pleasant towns of Indiana needs to Be revived and freshened. It i -equires no great reminder to bring ■ -his love and affection back into the hearts of Hoosiers. It reuuires only such simple tribute to the i State that has nurtured us, simplest, purest and strongest of all ways to tighten this bond, is to sing and play ■a recently written song "Sweet In-i-liana Home. It will revive in every ! Indianian all that is deep and true and 'patriotic; it will stimulate attendance 'at the back-home weeks of the coun ties each summer; it will keep alive message cf the home land the year round. I hope it will be used by the ! Hoosiers for the good of the State." Decatur Young Man Is Enrolled at Wooster — Wooster, 0., Oct. 24.—Complete figures on the fall enrollment at the College of Wooster, Wooster, 0., show i an increase in enrollment of eleven per ; cent over last year and thirty-three per cent over the fall of 1920, according to the registrar, C. R. Compton. J Among the 788 students registered [for the fall term is George Shafer. I of Decatur, Ind. ,I Students have come to the college r from twenty-five states and nine fort eign countries. Fifty per cent are - from Ohio, thirteen per cent from ‘ ■ Pennsylvania, and the remainder from other states and far corners of the world. 3 s South America sends five pupils; •, China, eight; India, three; Japan, 1 Siam and Alaska each two. e o SENSIBLE, THINKING WOMEN f no longer doubt the efficacy cf that ' old-fashioned root and herb medicine, e Lydia E. Pinkham's Vegetable Comt pound, because it relieves the ailh' meats to which they are afflicted. In ', almost every neighborhood there are e living witnesses of its wonderful of- | facts-. Therefore if you doubt its vali tie or power to help you, ask your «. I neighbor. In nine times out of ten she has been benefitted by its use or knows someone who has. It will pay you to give this root and herb rnedi cine a trial. Chicago—Every dog has its day and the day of the unpedigreed dog is near. A dog show for “curs” only is planned here with prizes for the kind est, smartest and the dog with the longest tail. o James Stucky Says, “Rat Cost M< $125 for Plumbing Bills.” “We couldn't tell what was clogginj up our toilet and drains. We had t< tear up floor, pipes, etc., found a rat’: nest in basement. They had choket the pipes with refuse. The plumber’; bill was $125. RAT-SNAP cleane, the rodent out.. ’’ Three sizes, 35c, 65c, $1.25. Sol< and guaranteed by Iloithousc Dru; Co., Lee Hdw. Co., Schafer Hdw. Co Callow & Kohne, W. W. Parks, Will shire, Ohio.

G. E. Masquerade Danee Masonic Hall Friday, October 27 Ladies and Gents prizes for beet make ups. Music by the G. E. JAZZ ORCHESTRA Public Invited. « ■■■ ,Baß;asH!sa

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♦ DOINGS IN SOCIETY ♦ CLUB CALENDAR Wednesday Shakespeare Club with Mrs. F. E. France, 2 p. m. Five Hundred Club with Mrs. Frank Barthel, 8 p. m. Historical Club—Mrs. Clyde Noble. Thursday Presbyterian Ladies Aid with Mrs. Dr. Fred Patterson, 2:,30 p. m. So-Cha-Rea club with Regina Muraugh, 7:45 p. m. Presbyterian Ladies Aid, Mrs. Fred Patterson. M. E. Ladies Aid in church parlors,, 1:30 p. m. Yeoman Masquerade Social in Yeoman Hall. Womens Missionary Society of the J. B. church —Postponed. Eastern Star in Masonic Hall. Woman’s Missionary Society of Evangelical church in S. S. Rooms, .1:30 p. m. Loyal Workers class of Evangelical 1. S. with S. E. Black. Friday Masquerade by Pochantas lodge, .':3O p. m. C. E. Society of 17. B. Church Hallowe’en party with Clarence Baughman, 7:30 p. m. Box social at Aber school. Called meeting of Civic Section of Woman s club in Old Adams County Bank, 7 p. m. Ben Hur Masquerade social, in Lodge Hall. Presbyterian Mens club with C. C. Pumphrey. Saturday Loyal Daughters class of Christian Sunday School with Loretta and Lelali Hcffev, 3:00 p. in. I Friday evening of this week the

; members of Ben Hur bodge will hold • . their Annual Masquerade at their 1 j v'i. The committees appointed to I i plan for this social Jias plans made, I i and members and their friends are I s invited to attend. A program of mu- I sic, readings, games and contests will I I be given. Also Ladies fancy drill. I > A two cent supper will be served as- I ter the program. Prizes will be given I for the best masked person. ♦ 1 The Dutiful Daughters Class of the ” Evangelical church gave a shower on Mrs. Fred McConnell at the home of a Emma and Mary Uhrick. Everyc thing was decorated in pink and white f- streamers. The dining room had a little sprinkling can hanging from the ] n • handelier with ribbons following r from it aifd the majy presents were V tied to the ribbons. When the boxes were opened a big surprise was revealed, It read Mary and Harry, Nod .ember IG. 1922. (Mary Uhrich and Harry Staley) The evening was spent n playing games and Jeter in the eve!S ring, a delicious lunch was served. ♦ le Members of the D. Y. B. class of | the United Brethren Sunday School together with their husbands, gave a ' le surprise masquerade social at the home of Mr. Jesse Swartz. Mr. '. iwartz is the new teacher- of the class. The members of the class i( j masked as robbers and when Mr. I ’s' Schwartz mine to the door they ‘ id pointed their guns at him. Mr. . , Swartz was greatly surprised when ' the identity of the “robbers” became i known. A very enjoyable evening' 11- was spent. The Woman’s Missionary Society of I the Evangelical church will meet in the Sunday School rooms of the j church at 2:30 o’clock Thursday afi I ternodn. All member:) are urged to I bo present. * The men of the Presbyterian church will be entertained at a Hallowe’en I tccial at the home of Car! C. Pump- < hrey on Friday evening, October 27.[ ♦ Mrs. John Weishaupt entertained at dinner today for Mrs. D. B. Steete and Mrs. Forest Steele of Fort Wayne. ♦ The Loyal Workers x class of the Evangelical church will hold a masquerade social Thursday cven'ng at the S. E. Black, Every member is requested to be there masked.

The Ladles Aid Society of the M. E. church will serve a two cent supper in the dining room of the church next Saturday evening, Oct. 28th. Everybody invited. ♦ The Psl-lota-Xi girls ’ entertained their husbands and sweethearts to a picnic supper last evening at the beautiful new home of sorority's president, Mrs. Chalmer Porter on Mercer avenue. Tlie girls brought all kinds of good things to eat, including chicken, uniloped potatoes, salads, meat loaf and baskets of doughnuts and other goodies. About thirty-six guests were present and the east were spread on the dining room table and served in cafeteria style, the guests taking their plates to the tables neatly arranged and placed in other rooms in the house, the hostess assisted by Mrs. John Baumgartner, serving delicious desert of lemon ice and coffee. In a doughnut eating contest the prize went to the men. Following the 'dinner a social hour, music and cards were enjoyed and a trip made through the attractive little home of the Porters. * Mr. and Mrs. David Gerber entertained qt dinner last evening, it being Mrs. Gerber’s sixtieth birthday and congratulations were showered upon her by the guests. Covers were laid for the following: r. and Mrs. Tillman Gerber and family. Mr. and Mrs. Edgar Gerber and Miss Lulu Gerber. ♦ The Loyal Daughters class of the Christian Sunday School will meet with Misses Loretta and Lelah Reffey at 3:00 p. m. Saturday afternoon. Judge Smith to Speak In Preble Township The Democratic meeting scheduled for Thursday night at Freitag's hall, I f ruble has been changed to the school house, one mile north of Preble. Judge David E. Smith of Fort Wayne, former ident of Decatur will be the princii ->ai speaker and every voter in Preble s township and the surrounding community is invited and urged to hear . him. Remember the meeting place has been changed to the school house, one mile north of Preble. Stomach Aid Rig Free Sample on Request Dr. Jackson's Digestive and Liver Powder Immediately dissolves in any ntotnach. sweetens itt banishes or reutra’izes the gas, relieves the heart 1 of the diaphragms pressure, rouses the liver, improves digestion. regulate* J the bowels., restores calm, restful sleep. First dose usually relieve? acute indigestion. At most drus stores. 6<Jc and |I.OO. and money refunded if first box not satisfactory ? .!;<• kson Medicine Co., Zanesville _ Ohio. *

I Crystal Theatre I TODAY AND TOMORROW | Her Wedding Altar K ! An Auction Block! I T!>e price of her purchase — the name of a "good V- . man's wife.” I And so. a slave to condi- ■ tions where she lived, she honored and obeved. I - ■ Then one day she loved — I ts| ...\ ■ another! ' \ j® | The rest is a drama that laces through scenes that -v 1 crackle and snap like a I„< ><- '-CT I Wholly different from any- . 'SHBhk '■'* 4 A- $ 4 fl thing this beautiful star I I has played before. Jesse L. Lartal Xa presents -■ ■jgnBWWMBMIL ; Gloria ’ Swanson; wB I ia \ BB / (T \ -• fctovmoW) - & ' ” . ,'1 Adapted from the Novel, “The Shulamite,” by Alice and Claude Askew and the Blaj by Claude Askew and Ed. Knoblock—Directed by Sam Wood—Scenario by J- •- - Also Pathe News. 10c ~Tl

BOX SOCIAL A box social will be given at the Aer School, four miles north-east of Decatur on Friday night. October 27. Everybody invited. 250-3tx .* — Shore birds sometimes go as far inland as the prairies.

WHOOPING COUGH No “cure”—but helps to reduce paroxysms of coughing. VICKS v Vafoßub Over 17 Million Jan Uud Ytarly

Keep Out The Cold Winds This Winter That broken windshield or sedan window or door needs immediate attention to protect you from the cold wintery weather. We carry a fine grade of plate glass for this particular work which not only keeps out the cold winds but adds much to the appearance of your automobile. Let us put that glass in nowtoday—to insure this comfort. t . , Window Glass 1 Our glass, like all others, whether for the window or for the automobile is-not r I unbreakable, but does excel in clearness ~ and our service is of that prompt variety that gives satisfaction! Ir i Every thing in the line of window repairs can be had at a moment’s notice when yon need it. e I ■ Lee Hardware Co. T 1 •t r - • ,« West Monroe Street " I I . — ■■■ . — 1 — :. ~ -i- —————

dance"! K. of C. Hall Thursday, Oct 26 Beginner’s class . 7 ., fl Assembly ” »;’? Music by , G. E. ORCHESTRA i ou are invited, Fred Schurger, Mgr.