Show sets complicated operation easier numerous controls give way to one tuning device in modem outfit from multiplicity to simplicity deml from one tube to a dozen is the incon sl tuition that has accompanied the of the modern radio ei ahe nuni crous controls thought nee assir in an earlier day have ghen ani largely to one tuning device the elaboration needed to pro duce this disc rf operation has been nunce to the unseen ases back of lie panel chere aiom fe to eight or more tubes with their increasing collection of hae sprung up to sandow ho lonell tube of ilo past connerly Fon it ans not unusual in PP the andio owner to use t hands where a dozen were tn adjust the many controls anven the crystil set was not thought there were at least six adjust lienti before listening aoud be ow in most cases one hind Is ghen a rest while the per flims the simple sk of selecting the station desired locution Lo lution of the receiver pot under dav with the of the one tube set aliey became so numerous that the manufacturer of tubes wib laird pressed to supply the demind dem ind most of the earlier models were ur rifle radiators and their tuning bouli set up a howl in the neighbors re ahers those sets while they agne considerable moie volume thin crystal still clung to the idea hit plenty of controls was thing hearth for greater volume brou glit the ludlo into prominence it too bore a nest of controls the liter amplifier models liae shown no revolutionary diunte in circuit de blan ahelf physical controls have dla appeared dis anee brought change search for greater distance getting ability an I 1 elimination of squeals aart howls sav the development of the tuned ra lo frequency set with our or dixe tunes and three controls the which was comparatively simple because the reading on each dial wasyi early the same of the later liy receivers still carry alie three connol idea about ie tame time the BI erldyne prang into popularity the number 0 tabes ranging from five t ten or m e its construction was an procedure but it did have a counteract count erac ing advantage there wen j two maln operating adjustments although lie earlier models and SOOM of them tilt do contained from one to four v controls the earlier tapes wen all home constructed and it lias been only within the last year or so thai this set has been produced bv alie alic latest mod els a combination control that Is in t a one handed device hiding the knobs J of the singly controller con trolle 1 receiver I 1 artt w as successfully b replacing the three dials of j alie fh e tolbo iet with a mechanical de vice at the panel alu a signal ave length adjuster sue cess in to I 1 was followed by further behind the panel as alip number of steps of tuned radio re fluency g a luilly began to increase until the isaie reached as high as sc 1 some 0 he later models een at tempt p d aulse the f act aliey are bidlo and only a small knob pro agdes on alie front with n window cote by to show the adjustment m fc other types haie stopped a e controls aliment nt of control cation ha i teen greit changes in aln i interior 0 alio set addition of ticla step of n ho fi requires an other that a set with four stages at least seven tube j and mean that ing apparatus must be 5 S j |