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Show PIUTE COUNTY NEWS, JUNCTION, UTAH -- h --A A o Five-Tub- & o & 45V B 90V -a Tuned Radio, Detector, and s Doughnut Using e Tuned Radio Frequency Two Stages of Audio Frequency) Receiver Coupler in First Stage. (Two-Stag- - e Low-Los- The latest Improvement in radio ap- move the present coll used for tuning s doughnut coil, the aerial circuit apd replace it with paratus, the low-los- s can be used In any of the neutrodyne a doughnut coupler. The same can be used to tun condenser stabilize and tuned radio frequency to the circuit. Its use in place of the the receiver providing It Is of .0003 customary aperiodic coupler used for mfd. capacity. Parts Needed. tuning the first stage will Improve any existing receiver and Is a good piece receiver To construct of apparatus to incorporate In any re- as shown in the diagram, the following ceiver. list of apparatus will be needed: The interference, noise and general s 1 doughnut coupler. tuning qualities of the first stage are 2 transformers, amplified and eventually become the tuned type. (Low-los- s coil doughnut output of the receiver. If the first transformers may be used here with stage Is broad in tuning, the receiver excellent results.) will very likely lack selectivity. The 3 .0005 mfd. variable condensers, action of the first stage has a great s preferably straight line frequency deal to do with the ultimate performwaveso the condensers lower that ance of the receiver. length stations will be separated far Usual Type of Transformer. enough to make tuning easy. apart, The usual type of transformer used 5 vacuum tube sockets standard r single-layehas a wound coil on a 25 ohm for the C five and rheostats, ana off with for the tube, tap taken 301-the C 299 type 40 ohm for and tenna connection. The field of the tubes. magnetic lines of force around the trans2 ends of the coil, created by the flow of current through the wire, spreads out formers, 3 to 1 ratio. 1 .00025 mfd. fixed grid condenser; und sprays nearby pieces of apparatus, causing distortion and making the re- 2 megohm grid leak ; single-circuceiver unstable In operation. phone jack, binding posts, wire, a 7 by 24 or The of coll, panel and a 7 by doughnut type on the other hand, has an entirely baseboard will complete the list of apfield that prevents magnetic paratus necessary. effects. Follow out the wiring diagram in The low loss feature spraying of the coil Is due to the fact that the building the receiver, spacing the reguwires are indented at every other face lar tuned transformaround the coil, thereby lowering the ers at least 6H Inches apart. If the s distributed capacity and resistance doughnut coll transformers losses below that of ordinary coils to are used, as well as the coupler, then a noticeable degree. the spacing can suit the arrangement lo aoaof In Washington' Day Today To Incorporate the coil in a regular of the rest of the apparatus fn your set without fear of Interstage coupof woodland In four tracts, established neutrodyne or tuned iu 1914. The maintenance cost of the receiver, all that is necessary is to re ling. forest has been $4,405 and the returns from lumber and fuel wood sold bus lit practically eliminated time and Use of More Coils to been $3,518; it will show a net annual space, and in that up tremenAdd Selectivity to Set dous possibilities foropens profit. Plymouth appropriated $3,000 the future, belast year, bought 150 ucres and planted In the construction of the additional sides giving an insight Into that which 15, (XX) young trees. coils, writes a correspondent in Radio has heretofore been most incredible, Thus 42 towns now have their town Digest, use one spider-weform and the flight and traveling capacity of the forests. There are 105 others with wind on two wires, one ten turns more soul of man which death Is committees appointed, and a large per than the other. For Instance, if your supposed to release from the body. cent of these towns will take favorable original tuner coil C has 45 turns, Having witnessed the of performances action this year. It might fairly be make the coll A 40 turns and coll B 50 the radio, Is there anything that Is not said that the town forest idea lias been turns. Disconnect the input of the set possible? sold to Massachusetts and eventually from the usual coll D and make con- every town with idle forest land within Distance Advantages Its boundaries will have its town forest. It Is possible for about 300 of the 355 by Discarding Primary cities and towns in Massachusetts to Better distances can be covered at have forests, and with each of these a slight sacrifice In selectivity with planting a few thousand trees annually s present-datuners by removthe result will be ing the antenna and ground connecThe creation of a town forest from tions to the untuned primary and conthe legal standpoint f. simply a matter necting them to the secondary coil of routine. There are a few states through two .0005 mfd. fixed conthat have specific laws pertaining to that is, one condenser should densers; town forests, and these outline the be connected in each lead. This methmethod to be followed. Where no such od will give a capacity coupling belaws have been enacted the general tween the primary and secondary and laws applying to municipalities will Diagram Showing How Connections will eliminate the coupling control beAre Made. probably be found adequate to enable tween the primary and secondary. the city or town to acquire a forest. nections as shown. Tlace an Greater signal strength will also The states that have special legislation or variable condenser in the be had, due to the direct feeding of regarding municipal forests are Massa- antenna circuit. energy Into the tuned circuit without chusetts, Minnesota, New Hampshire, The colls A and B are tuned simul- the loss which usually Is had when a New Jersey, New York, Ohio, Pennsylcondenser F. transfer of energy Is made from one taneously by the vania, and Vermont. This automatically tunes out stations circuit to another. There are thousands of towns In having a slightly different wave length which many acres of land are lying on each side of the station wanted and idle, producing little or nothing for the narrows down the static band. If this Life of Radio Tube Is owners and only a few cents per acre Is properly assembled It will make a Governed by Use It Gets in taxes. In its present condition It Is very sharp tuner for the regenerative more of a liability to the town than an set The life of any .radio tube Is govasset. The average owner of such land erned by the use It receives in the of the operator, and Its existhands either cannot afford to reforest It or Waves Speed Is ence may be terminated either by the is unwilling to put his money into such Light Investment. But the town, a long-tim- e 186,000 Miles Second filament burning out or a decrease In electronic life of the tube. Now, a corporation, can afford to wait for The mysteries of the radio are never the the the crop to mature. By putting this burning out of a tube may be Scientists have now figured It caused land to work now the town will even- ending. by excessive filament current, man In a New out that the speech of or a short circuit with the B a handsome by profit. tually reap York, if broadcast by radio, Is heard or It may naturally burn out The booklet points out that the In San Francisco before It Is heard battery, by of Its own accord. The town forest stands at the threshold of decrease In audience facing him. the emission In a tube Is caused electronic the American home. It is the property but true Astoqndlng? Sure, just the excessive filament voltage, or excesof the people, maintained for the peosame, due to the fact that the New by ple and operated for their common York audience hears by sound waves sive B battery voltage. The majority benefit. It Is theirs, within their which travel but 1,126 feet per second, of operators of receiving sets can proto use, to enjoy and to protect. while radio audiences over the country long the life of their tubes by burnreach, ing the filaments as low' as possible It pays its own way, yielding a reg- hear by means of vibrations or light ularly maturing crop of timber on waves and these travel at the almost and by keeping the B battery to 90 volts or less. which, for local consumption, no rail- Incomprehensible speed of 186,000 road collects the freight. It stands as miles per second. As San Francisco Is a constant lesson In forest protection If you wish to use 199 tubes with a but 3,000 miles from New York, It and respect for common rights, which would take but the veriest fraction of A battery, may be neither wasted nor abused. a second for the radio to transmit the try putting a rheostat In the YVithout conflict, healthful recreation speaker's voice to the Pacific coast, negative lead to cut down the voltage. and pleasure may here go hand In less time than It tabes sound waves to Then Include the usual rheostats on hand with common dollar profit It is carry the same voice to the audience the side of the lead opposite the bata vital aid In the education of school tery connection. Its not a good pracdirectly In front of the speaker. boys and girls. It naturally become The radio Is the wonder of the age. tice, however, to mix tubes. a sanctuary for the birds and wild life. low-los- low-los- radio-frequenc- y low-los- Their Economic and Recreational Value A low-rati- o SHERMAN UK timber shortlife In t lie United States wldch the txperts have been predicting fur many jears, Is no lunger a theory, blit a condition. Here's the sitim-tiun: The original forest totaled 822,HX,KX) ncres. There now remain 138, acres of virgin forest; 250, IKK), 000 acres of second growth or forest, much of it of poor quality and some of It of no present merchantable vulue, and 81,kk),000 acres of burned and lugged over lands, Idle, unproductive, and for the most part unlit for farming. Of the original forest there Is left in area and in bulk of timber less than The northeastern states cut 55 per cent of the nations output In 1850; in 1020 they cut 6 per cent. per cent was the output of the Iacnic and ltocky mountain states in 1S!K); in 1020 It was 55 per cent and Increasing. The regional shortage has marched across the continent. Today 75 per cent of t he virgin growth and 00 per cent of nil the usable wood are conof the acrecentrated on land In the age of states of the ltocky mountains and coast states. The states from Wisconsin and Illinois east to the Atlantic seaboard consume 50 per cent of t lie national cut. t ho supply mostly coming from the South and Far West. The railroad haul from the South Is about 1,200 miles, and from the Far West about 2,750 miles. The railroads carry annually in excess of 8, 500, (XX) carloads of timber and wood products. The freight hill is between $250,000,000 and By JOHN low-los- s one-sixt- h one-thir- F,' one-fourt- h timber-producin- g Ia-cili- c ZATimOP T2ACK setts Forestry association. It is for free distribution for the good of the cause. The Town Forest booklet carries a foreword by Charles Lathrop Pack, president and founder of the American Tree association, who gave impetus to the movement by presenting a thousand-acrdemonstration forest to the New York College of Forestry at Syracuse university. Ills association, incidentally, is unique in that there are no dues, and the only way to become a member is to plant a tree and register it. And anyone who asks may have tree planting instructions and a tree day program free. Our Idea, says Mr. Pack, is to get the stranger to trees interested In one tree. With the individual sold on one tree, we then Introduce him to t lie large plumes of the subject. The Town Forest Is one of these phases. In hundreds of European towns the citizens receive a little cheek every year instead of a tax bill because of town forests. Itatber an engaging Idea, I think, in these days of Income tax returns and the high cost of live ing. Mr. Reynolds sets forth In one chapter that in 3913 a law was enacted In Massachusetts providing that cities and towns might set aside lands for the express purpose of growing tim$300,(XX),(XX). ber. That law authorizes municipaliIn the national forests In 1023 forest ties to purchase lands or to accept tires covered 373,214 acres; the timber gifts or bequests for this purpose. A and property loss Is set at $194,!XS5,(XX), town may Incur debt within the legal ith Intangible losses Incalculable. Insect pests cause an annual loss iu excess of $100,000,000. The forest service expends more than $2,(KX,(XH) a year for lire protection and protection against Insects and tree diseases. Lumber prices have increased all out of proportion to a point where they obviously bear no relation to the cost of and distribution. Per production capita consumption has decreased In consequence, but this Is offset by Increase in population. Moreover, there Is still a bousing shortage, and 1925 Is apt to set a new building record. The papermakers have tlieir own separate and distinct problem, which they regard as even more serious. They have been using spruce, fir, hemlock and aspen and hope to be able to use birch, beech, maple and other woods. All of which makes interesting the "Town Forest movement which Is getting under way in the East, and especially in Massachusetts. For there Is no possible doubt that a town with a successful forest of Its own Is In luck and from many points of view. Anyone Interested should send to the American Tree association, 1214 Sixteenth street, N. W., Washington, D. C., for a booklet just off the press, Town Forests: Their Recreational and Economic Value and How to Establish and Maintain Them, by Harris A. Reynolds, secretary of the Massachn- w 26-inc- 23-inc- h self-contain- (XX),-(Kt- h y it " tldrd-growt- audio-frequenc- limit, and any town can establish a s vote of any regforest by a town ular meeting, or a city by a similar vote of its council. .When a forest Is established by such official action the state, through its conservation commission, will give trees to the town to reforest the land. two-third- The Massachusetts Forestry association started a campaign of education to persuade the cities and towns to acquire forests under the act. In the last three years, since the association has offered to plant free of charge 5, (XX) forest trees for any city or town which will establish a forest of one hundred or more acres, the Idea Is gradually being accepted. Janunry 1, 1925, 42 towns had set aside land for town forests or voted to do so when the committee could obtain the land. In the aggregate over $25,000 has been appropriated by these towns, 8,500 acres have been included in town forests, and nearly half a million trees have been planted. The association 1ms planted 60, (XX) trees (about CO acres) for 12 of these towns that have qualified with 100 or more acres. Of the town forests already created have been obmore than tained through gifts of land or of money from citizens Interested In forestry and In the future of their town. The city of Fitchburg has 109 acres one-fourt- h radio-frequenc- y low-los- radio-frequenc- y I b y low-los- 11-pla- te 23-pla- te 24-pla- te six-vo- lt 50-oh- m h |