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FILTER_TYPE_SSB_GENERATOR

2017-02-22 01:15  
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FILTER_TYPE_SSB_GENERATOR
Carrier is generated by FET crystal oscillatorQ1 followed by buffer Q2. Modulating wave is applied to HEP 580 connected as two-stage audio amplifier feeding double-balanced modulator IC1 through transformer T1. Double-sideband signal from pin 6 of IC1 is applied to amplifier Q3-Q4 for straight-through amplification when double-sideband output is desired. For 9-MHz single-sideband operation, sideband filter is switched in between transistors.-E, M, Noll. Linear IC Principles, Experiments, and Projects. Howard W Sams, Indianapolis,IN,1974,p353-356.