. QST . n them willshow a material improvement in actual perform-ance if the values are corrected to conform withthe accompanying chart. This is because there iswide latitude in the selection of a frequency inthe first place, and because it is difficult to obtainthe exact values of inductance and capacitancecalled for in the ideal case. In other words, usethe chart herewith if youre starting out fresh,but dont worry about the performance of a filteralready built from the December data. In an editors note in the correspondence col-umn on page 138 of the January issue, referencewas made to the A


. QST . n them willshow a material improvement in actual perform-ance if the values are corrected to conform withthe accompanying chart. This is because there iswide latitude in the selection of a frequency inthe first place, and because it is difficult to obtainthe exact values of inductance and capacitancecalled for in the ideal case. In other words, usethe chart herewith if youre starting out fresh,but dont worry about the performance of a filteralready built from the December data. In an editors note in the correspondence col-umn on page 138 of the January issue, referencewas made to the ARRL Safety Code. The codewas published in the issue for June, 1953, not1952 as stated. Re the circuit diagram of W6RETs crystal-controlled converter on page 34 of the Decemberissue, the positive 175-volt supply should beconnected at C3, rather than C7, so that the volt-age to the 6J6 will be reduced. 152 For top-man-on-the-frequency^ results! BEAMED POWER-PERFECT MATCH-BALANCED PAHERN YOURE THERE! - with.


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915