. QST . TUNABLE • 3 MC TO 8 MC1 MICROVOLT SENSITIVITY5 ICC af 2X down SeleciivilyS SPEAKER BUILT-IN NOW AVAILABLE FOR OTHER APPLICATIONS ALSOFOR COMPLETE DETAILS AND PRICES, WRITE FCDA APPROVED CRYSTAL CONTROLLED SINGLE FREQUENCY RECEIVER MODEL SRX-1 SONAR RADIO CORPORATION 30S0 W 21st St. Bklyn. 24, N. Y. are important here, too. Overtone circuits are outfor such apphcations, obviously. Youll build thisrig with all the customary TVI-prevention meas-ures, anyway, so the possibility that unwantedmultiples of the oscillator frequencies may ap-pear in the output is of little importance. A care-fu
. QST . TUNABLE • 3 MC TO 8 MC1 MICROVOLT SENSITIVITY5 ICC af 2X down SeleciivilyS SPEAKER BUILT-IN NOW AVAILABLE FOR OTHER APPLICATIONS ALSOFOR COMPLETE DETAILS AND PRICES, WRITE FCDA APPROVED CRYSTAL CONTROLLED SINGLE FREQUENCY RECEIVER MODEL SRX-1 SONAR RADIO CORPORATION 30S0 W 21st St. Bklyn. 24, N. Y. are important here, too. Overtone circuits are outfor such apphcations, obviously. Youll build thisrig with all the customary TVI-prevention meas-ures, anyway, so the possibility that unwantedmultiples of the oscillator frequencies may ap-pear in the output is of little importance. A care-ful consideration of all the design factors willenable you to make a wise choice as to whetherovertone-oscillator techniques are attractive forthe job you have in view. Antenna Coupler (Continued from page 19) harmonic attenuation. Note the similarity ofFig. 3B to a low-pass filter section. It should bepossible to match either 52- or 72-ohm coax with-out difficulty. The nominal rating of the components u
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
