Evening Star Newspaper, June 27, 1926, Page 32

THE SUNDAY STAR. WASHINGTON, D. €. JUNE 27. 1926—PART 1. U1 RADIO EXPERT REPORTS ON STATIC | | | Programs of Distant Stations Sc Says Disturbances Are Re- | duced by Unindgirectional Reception. Btatic, alth able ing to br Stal Bure LocalRadio Entertainment NAA—Nuval W AP—Chesapeake Sunday. June 27, 1926, Station, Radio Meters) Radio Va. d - Potomac Telephone Co. Meters). Tomorrow Early Program WR(C—Radio Corpo | § 5 ; | a 1685 Meters). Early Program Tomorrow American Radios Sought T Ttaly and one the Depart sire RADIO’S BEST OFFERINGS B moert WIAR, WTAG WEAF, 8:43 Wi \' and WCSH Sophic ker's Orchestra, ‘WHNX, 11 o'clock. for | \ yres of res LONG RANGE RADIO ENTERTAINMENT SUNDAY, JUNE 27, 1926 cheduled for vl.'tln!h'rn Standard Time 8 T0 D AM 10 10 11 AM. b of Christ. Scientist ser ¥ WHN WHAR Pail's Episcopal Cathe 2" Church services Methodist Chur “hethany Sundy o b Sunshine hou i foes 00 W W 0 ago My vt s Or hine ho wephard Awrial WHT time hestia of mustc hestra et Concert, program ] 1 Alemite B al o m by M, 1. WCA neem ago: Back h dio Chapel by Rights Reserved The Fundamental Radio Circuits. te to tackle the task of The number of names would e reds of the large 1 have bheen circult designers and » new wrinkle or t will create a new n principles of new cireu r d can be gr Iy fundamental circuits. ist of circuits is the ¢ circuit, without any form of amplification. The tector circuit into the and 1 would 1 all the various tyy have this rectifving all of these much alike 2 iflers of s includes rect ype, such Modern Vacuum Tube Type. 1d_include th s built around cuum tube. It is in hat the large majority of modern circuits belong. The circuits in this class overlap to h an extent that it would be diff 1t to divide them into separate clas- fications, <o that we will content our- Gelves with enumerating the basic principles of these circuits and the Way in which different combinations of the circuits are obtained. first in the list is the simple m tube detector circuit. The detector cfreuit is used not one-tube detector circuits, but circuits of the standard radio Ludio frequency type in which & enerative detector is employed. Kegenerative Cireuits. hen we have a number of different cnerative detector cirouits, an-ong which the tickler feedback and the tiuned plate circuit type are most. common. : n radio frequency amplification we have both tuned and untuned trans- formers. We also have radio quency ofreuts, in which the are ndjustable to the best point for oscillation control, and other in which no such control is provided. The scraight radio frequency elveult, in which enough losses are in prevent oscillation on < an example of the type in adjustable oscillationy: con- trol is provided. The neutredyne method, in which the tendency of the circuits to dscillate is prev S class wou eliminating interelectrode capaeity in the tube, falls in the class of adjust- able oscillation control and also cludes many other forms of cuits. "The revel ciple, the e an Band conoert; WSAL WIAR. W MIDNIGHT T0 1 AM. ts by Marte Tnrmer organ e ‘e cir. | set i 370 4 PV iano rolos 6 PV W00 WOCO ¥NAC burh Edwan P.WWI WHEM wip Ingors otta Madden. s AG and WOSH 10 PM I Draio T om . WEAF WG N WHAR WK WCBD Conway's Orchest A cxults; organ MIDNIGHT. 4 Orchestra dance pro WKR( itai WHEM FIFTEEN MINUTES OF RADIO EACH DAY BY JOSEPH CALCATERRA Noted Anthority on Radio. Reproduction Prohibited. tiometer grid bias method fall into the general class of tuned radio fre. guency circuits having oscillation cor trols. Superheterodyne by Itself. The superheterodyne stands class by itself quency amplification. Many frills have heen added to the original cir cuit, but the principle remains the same There are any number of combina tions possible with the 2 ciple of both radio and aud cation in the same tube. In the audio side of the circuit there are a number of available meth ods of audio amplification. There 1s the most common form of transformer coupled amplification, both of the sim- ple and push-pull ty.. There is the auto-transformer method, there is the resistance coupled type, which has enjoyed consideriable popu: larity. in a amplif 1) sed. In most cuite consist in new and a combina- mental circuits. designs of tion of the fund OFFICERS TO INSTRUCT. Corps Chiefs Ordered to Posts. Three Army Signal éorpc officers, who recently graduated in electrical engineering at Yale, will become in- structors in communications at Fort Monmouth, N. J, the Army Signal School, and another will serve on the staff of Maj. Gen. Charles McK. Saltzman, chief signal officer of Wash- ington. Maj. P. W, Evans, 8ignal Corps, has been detailed in charge of training at the Washington Signal Corps head- quarters. Capts. Frederick W. Hoorn A. C. Stanford and Lieut. Herrod and G. Miller will serve as instructors in radio at Fort Monmouth, the training Signal fre | center of Army communications. PR Peru Radios Reduced. The Rru}w:hn Broadcasting Co., which has the local radio monopoly, has annotificed a 25 per cent price re- 7 "~ {duction om-all radio apparatus, | batteries, according to advices to tg'-, ! pepartment of Commerce, Members of the Peruvian Radio Club receive a by | further reduction of 10 per cent. * A Berlin theater is sho nr"-n taken f10 s a form of radio fre- | prin | and which will broadcast tomorrow phn 1o right i bass. B, row, ] Dobson, director, . and Walter SPECIAL RADIO PROGRA John Smith and His Radio BY FREDERICK ( RUSSELL harve No. Radio Terms Wheneve v dor he demanded | the b “Why dor “There Just ha then You using ht from station WCAP. Frederick Pilgrim, bari muel Eschenbach, second t Front row, left Anderson, second teno Percy Domey, Christopher, first tenor; ohnson, bass. ] RADIO GOSSIP AND NEWS| -~ Broade Applicant Withdraws ‘TEMPORARY RADIO ACTION EXPECTED Solution for System Await nent of Must Control World Stations Total 813 Blames Dry Weather on Radio. appeal to Se ¢ Hoover | asking broadco: affecting beneath polse grew lnrge rainfall, > for molstu Plane Broad The Army has taken up ALLEN’ C A S S ummertime Hours of asting @elight ERHAPS you, too, will find contentment at Allen’s Harbor in Harwichport a polden beach with the ocean beyond. And to enhance each Summer moment of pleasure, your home like those of others around you will nestle among shading pines, and face the water. on If it's just fun you seek, there’s every sport of the land end sea on Cape Cod. The smoothest of motor roads bring each attraction almost next door. Until you know Cape Cod, you cannot realize how bountiful are the resources of New England for vacation-time pleasure. Until you know Harwichport— | casting from an airplane to d | hate knowledge on flying and its daptations. MeCook |at Dayton, Ohio, officers of t service. and radio engineeri combined nd have bro: v of lectures on aviation from a flyir ing the past two months. xt lectures scheduled fill cover the follow he Camera in the Airpiane ) for Aviatior ~ Heart of ties, hombin ingles of s been broade results, judging from | communications from seven or more States. The idea is to! populari g ation and to keep those interested in flving posted on current developments in both military and commercial aeronautics. Many enthusiasts now tune in on the Army plane ever 7 o'clock, or the co-operating broad caster, WLW, operated by the Cros. ley Radio Corporation at Cincinnatf; Ohio. A large LWF transport plane which has an inclosed cabin, in which | the transmitter is located, the_aerial station, w0 st with exc thousanc listener X X Fixed at Once Our experts fix any set —there's no delay. Low rates for installing aerials, batteries, etc. o 4 you cannot know the Cape. The Allen’s Harbor booklet will interest y CAPE COD REAL ESTATE TRUST HARWICHPORT, MASS. | THAT the character and beauty of Allen’s Harbor | | may be perpetual—adequate restrictions have been | ‘ established, and are adhered to rigidly.