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Show THE SAUNA SUN. SAUNA. UTAH Crack Rifle Team Composed of Coeds (Edited )y Douglas Wardrop, Editor of Radio Merchandising.) G. to get perfect walla with Diagram Showing Amplifier Alone, Wired to Plug by Single Lead; Arrange ment Suggested for Adding Resistance Coupling to Any Circuit. Al&bastine. Alabastine is dry powder in white and tints. Packed in 5 pound packages, ready for use by mixing with cold or warm water. Full directions on every package. Apply with an ordinary wall brush. Suitable for all interior surfaces plaster, wall board, brick, cement or canvas. It wont rub off, properly applied. Ask your dealer for color chart and suggestions or write Miss Ruby Brandon, the Alabastine Company, Grand Rapids, Mich. m -- audio amplification Is meeting with popular favor wherever It has been,tried. It reproduces over the entire scale without distortion of any kind. Its only drawback Is that three stages are necessary to produce the volume of two amplifistages of transformer-couplecation. The diagram shows how a Kesistance-couple- d d amplifier can be added to any set. The coupling reslsters, Rl, of the A. F. amplifier are 100,000-ohresistances. This value remains the same for all tubes (practically), as do the .006 mfd. coupling-isolatincondensers, Cl. The grid leaks, It2, U3 and R4 have respective values of 1 megohm, Vi megohm and U megohm. The diagram shows the amplifier alone, wired to a plug by a single lead, which arrangement is suggested for adding resistance coupling to any circuit. Practically no knowledge whatever of the receiving circuit Is necessary. Wire X should be tapped on 45 volts of B battery. g After tuning The most powerful locomotive now in use on the Iaris, Lyons & Mediterranean railroad, just built in France, to hauls heavy express trains. The monster weighs 118 tons and is more than fifty feet long. WARNS OF NEW QUAKE In a station on tele- phone receivers, the phones should be removed and the amplifier plugged into the Jack. If no signals are heard, the single wire leading to the plug should be transferred to the other plug terminal. When signals are being amplified, X should be varied over the B battery taps until the response Is the strongest without Impairing quality. Transformer Can Be Used. (The amplifier should always he plugged Into the lowest stage jack on the receiver proper the Jack that ordinarily gives the weakest response. Many neutrodynes are so arranged that at least one stage of transformer- - Peoria Woman Now a Duchess Set That Single-Tub- e Is Super-Regenerati- ve This Is a new single-tubreceiving It circuit, known as the Naclreman. was developed during a series of experiments with a large number of receiving circuits. This new circuit Is not suitable for wired radio because but It Is of its tendency to a in word last the simplified probably single-tub- e set for receiving news and music from the present broadcasting e coupled audio frequency amplification This being the must he employed. case, no more than two stages of resistance coupling should be added. One extra step generally will suffice. not suffer will Quality probably through the single stage of transformer-coupled Intensification. Properly designed and operated, one transformer-coupled stage should be audi-tivel- y perfect. If the receiver to which you contemplate the addition of resistance set, and four coupling Is a five-tub- e tubes are used (lighted) on the lowest Jack, It is an indication that one .transformer coupled stage Is being employed. ' High Voltage It Necessary. from the detector When tube, from 45 to GO volts should he applied to the plate of this bulb compensating as usual for the voltage drop across the coupling resistor in save money London Quaker s Move The Quakers of London, who hava occupied the same building in Blshopa-gat- e the plate circuit. for more thnn 250 years, ars No more than 90 volts should be soon to move Into new quarters. They Impressed on the r. f. circuit while came to BIshopsgate shortly after the 135 volts or more should be used on fire of London, when their meetgreat the a. f. amplifier. This last will were still forbidden as riotous function satisfactorily on 90 volts, ings One of the Quaker leaders though higher amplification Is quite who first held services at Bishopsgata on increased the naturally secured claimed to have suggested Miltons voltage. Paradise Regained to the author. from a transformer When coupled stage, the normal detector Dont Forget Cutlcura Talcum voltage should be used. If only two resistance coupled tubes are used, the When adding to your toilet requisites. leak values should be and 14 An exquisite face, skin, baby and dusting powder and perfume, rendering megohm respectively. other perfumes superfluous. Yon may Is a If single stage employed the rely on it because one of the Cntlcnrs grid leak should be a 50,000 ohm reTrio (Soap, Ointment and Talcum), sistance. The the and the DeForest DV-tubes will 25c each everywhere. Advertisement. function satisfactorily In this UV-201- 2 Serious Lumber Situation The lumber cut per capita in Splendid Loop Set Is Critical tor Tuning By J. W. MAYFIELD The accompanying hookup shows a splendid loop set with which I have heard New York, Schenectady, Atlanta, Kansas City and Davenport. So many radlnphans claim loops are not efficient unless used with one or two steps of radio frequency. This set Is very critical for tuning, but It is highly efficient As will be stations. noted the tuning Is accomplished with The circuit is described In the inrotor for terests of amateurs and the public a variocoupler with themfd. used A .0005 condenser who may wish to listen to the pro- the tickler. vernier preferred Is shunted across grams now in the air. The set Is Is also It requires a mini- the loop. The vernier rheostat of value. great mum Investment In parts. Practically Owing to extreme regeneration the every amateur already has everything necessary to try out the circuit. It set will hiss until filament Is properly will be noted that all resistances, grid leaks and grid condensers have been eliminated and no filter circuits are re- - 1908 was 525 hoard feet. This figure had dropped in 1922 to 2S5 hoard feet, and at present the cut Is dropping off at the rate of 1,00(1, 000,000 hoard feet a year, which indicates the serious forest situation which confronts the country. Class made by the early Romani contained so much Iron that they could not see through their windowi clearly. e. Say Diagram Prof. Kirtley F. Mather of the department of geology, . Harvard university, who says that another earthquake, comparable to the recent one In Intensity, Is due in a few months In North America, though there Is no real danger to be looked for. arranged. The grid condenser may be either .00025 mfd. with a megohm WILLING TO LOSE DAN ; hi; b j u, i d Margaret Clarke, daughter of the late Charles Corning Clarke ot Peoria, former mayor of that city, has just become the bride of Filippo Carrac-ciolo- , duke of Melito. The wedding took place in Morence and the young couple are spending the honeymoon on the shores of the Mediterranean. III., '' 7 EBSTOI vj 7 -- - v- - i S3 J i Holstein Sets New Butter Record A H 9 V&Sj fW, :em ' leak or .0005 mfd. and a Set of Interest to leak. Both were tried out with equal New Single-Tub- e success. The diagram Is self explanaAmateurs. tory. Radio Digest. quired. Any amateur can connect up one of these sets In an hour or two and the results will surprise the most Easy Way to Take Taps hurdened radiophan. Off in Winding Coils Almost any metallic structure which The easiest way taps may he taken may he picking up radio waves may off Is on a certain number by winding be used as an aerial. Connection to a the wire togethbed spring, wire window screen, steam of turns and twisting to make a five so us at the er point radiator or fire escape is often all that loop and a certain numis necessary. A short overhead aerial, or wound on the tube a length of wire strung across the ber of turns again and the next tap made In a similar behind concealed the room, picture manner. Or a neater looking job Is molding or under the carpet, will also made by winding on a certain numserve. ber of turns before making a tap and Tuning is accomplished by rotating then allow six inches for a tap; push coil or of the movable variometer the a hole in the tube and push the wire variocoupler until the tube oscillates. another hole in the Then adjust condenser No. 1 until the through It; push inch from the a about tube quarter station desired is heard, finally adjustother and close to the last turn of No.- 2 to the frequency condenser ing and allow six inches for a tap of oscillation which brings in clear wire h ends on the and Join the two adA fine music. and second speech of tube. Inside the justment all around will increase the volume and some regulation may he secured with the filament rheostat Use Care When You Are 1 variometer or variocoupler. LI Is Constructing New Set the rotor winding. 1,2 Is the staradio fans will rush the conMany tionary winding. 2 23 plate condensers, preferably with struction of some new set that they have seen or iieard. In the rushing verniers (Cl and 02). 1 DL or honeycomb coil or its any kind of connections are made, with a consequence of having the equivalent (L3). WD-ll- , 1 1 tube, A, or other leads long or twisted in all directions. hard tube. Usually ibis results in the failure of the set operating. Though It Is not 4 tube socket. 1 filament rheostat (R). necessary to build a new set on a 1 A hnttery, for WD-l- l to panel and all ready for putting in a cabinet, still, as much care should be for other tules. tube; 1 taken with a board layout as with a B battery, 45 to 90 volts for WD-ll- ; 5 to 135 volts for other tubes panel layout, especially when the set la some departure from a standard. Radio Digest. I pair phones INSIST. 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