Page 237 - Build Your Own Transistor Radios a Hobbyists Guide to High-Performance and Low-Powered Radio Circuits
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+V

                                                                                            0.1  uf









                                                                     R1




                                                                                              Vout



                                                                  le

            + Vbias

                          Rbias                              M    Q1

                                                      2
                                                                  (e.g o.2N3904)



                                                                                      CE
                                                               ....... V __ ----I I  < Vosc

                                                    Cin



                       Vrf                                           RE









            FIGURE 14-7 A simple transistor mixer circuit.
            TABLE  14-1  Ratio  of  Conversion  Transco nductance  to  Small-Signal
            Transconductance  for  the  Sum- or  Difference-Frequency  (Fl  ±  F2)  Signals  as  a
            Function of the Oscilllator Signal's Peak Amplitude
   232   233   234   235   236   237   238   239   240   241   242