. QST . 75A-4RECEIVER. The 75A-4 offers passbandtuning, AVC for Single Side-band reception, a bridged Trejection notch filter, a crys-tal calibrator circuit, separatedetectors for double or single sideband signals, a new noiselimiter circuit that works equally well on SSB, AM or CW,and mounting provision for three separate MechanicalFilters. Retained are the time-proven features of the earlier75A series — double-conversion, crystal-controlled firstinjection oscillator for high stability and good image re-jection; permeability tuned, sealed master oscillator withaccurate dial calibration and lo
. QST . 75A-4RECEIVER. The 75A-4 offers passbandtuning, AVC for Single Side-band reception, a bridged Trejection notch filter, a crys-tal calibrator circuit, separatedetectors for double or single sideband signals, a new noiselimiter circuit that works equally well on SSB, AM or CW,and mounting provision for three separate MechanicalFilters. Retained are the time-proven features of the earlier75A series — double-conversion, crystal-controlled firstinjection oscillator for high stability and good image re-jection; permeability tuned, sealed master oscillator withaccurate dial calibration and long-term stability, and Me-chanical Filters in the IF circuits for maximum selectivity. 32W-1EXCITER
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
