Show AW SET 17 F 11 making the receiver selective throe three methods method of connecting the wave trap are shown in the diagram selectivity this la in the battle cry that has taken the place of the watchword distance tor for of what use la Is a set that is able to tune in the pacific coast stations it if it cant tune out the nearby locals in tilt the old days ot of not so 80 long ago when all broadcasting was done on or meters and WO BOO watts watta was wait considered superpower super power the sharp tuning qualities of a receiver were vere not very important factors in its construction now however corne come requests for information on how to tune tulle out XYZ YZ wello la Is on how low to tulle out the locals lind hom to cepil rate tile hie locals if you ou have a alv tle or 01 i lore tube set M t that loci not little ahn rp ly there Is little you call 1111 do to remd remedy edy 11 II any good he five tube set eni in two stages it if d it 11 ia P should sli be able to separate ciul tum tilt out local sta foris that hint are not closer than linn 20 meters if your our set t ct does not do this it ft Is either cither not effa cent or you tire are using tin nn aerial lint flint Is too lonk long with a five tube set yop iou can use a much shorter aerial than one would suppose and still pet get cont fordable fort for ablo table loudspeaker loud speaker reception on oil most of the larger stations wll lilii 1000 nilles cut through interference it Is from the owners of nf the er the two three and four circuit r n calvers that tl at most of the compla complaints complaint inh 1 non selectivity come for them we can suggest tilt thu wave fral nip arid and it if it Is made with care find and of low resistance parts the lie user will lm br ahle able to cut his bin path through interference with greater rust wave wae tallis in genor kenrel til tire are of two kinds those that tire are shunted across tho the antenna and and tailed called acceptors and abose that are in se rles with tile the antenna und tind ground and called rejo tors A prevents one frequency from getting into the receiver and lets all others pass pas it cuts a slice out of the stations that are on the air an acceptor provides a convenient bypass by pass for all frequencies quen cies cles but the one that the listener desires to hear A wave trap Is simply fl a good coll coil shunted liy by a condenser and designed so lint flint it will tune from the lowest to the highest broadcasting station A good wave wae trap may be made front from one MHO of ill lie antenna couplers with condenser mills that lint are being sold bold for ii ue ae in fit n tuned tulle radio frequency set thorup ineth methods or of connecting tit the vive ive trap imp iu are chown in the di diagram agrAin when lien in ill serles als with tile ali antenna as in ill no I 1 ur or no the lie wine wave trill may be set cl tit lit IK he ane length of tit tin interfering sta sill tion wid that station will not cunill hie file timing of the ernp lins been hungry when across tile alie input to lie he receiver n elver wi ill li no 2 a trap will lot into tit the set bet only the lie signal that Is do sired and tuning somewhat seniew hat more inore coi but when the user becomes more to it lie he will A HI fill find that it helps considerably converting into A wave trap besides its use UISU as a filter can be convert converted into a wave meter by calibrating it tit in ane wave lengths it need only be placed nour near one of the colls of the receiving set net to indicate the frequency of the incoming signals when the wave bial II 11 up condenser Is turned a sharp de t reuse crease in signal strength for tile lie non regenerative recover receiver will bo be noted anti a click will ft be noted with till an os 01 cli latIng receiver when the lie wave wa trap Is in it consonance with lie flip circuit of tile the receiving rn chani set ily by calibrating llie flip anser setting from a few of the will u 11 komiti 11 iino burve way inin he be drawn flip feln ion ilon beleen the lie comi miser and I 1 the lie v nu lell fth nt itt alii uil readings st inels post |