465kHz amplitude modulation intermediate frequency signal generator circuit

Published:2011/7/4 1:54:00 Author:Christina | Keyword: 465kHz, amplitude modulation, intermediate frequency, signal generator | From:SeekIC

The 465kHz amplitude modulation intermediate frequency signal generator circuit is as shown in the figure 1. The 400Hz low-frequency multivibrator is composed of the VT1 and VT2, the 465kHz intermediate frequency oscillator is composed of the VT3, VT4 and the ceramic filter 3L465. The 400Hz low-frequency modulates the 465KHZ intermediate frequency signal through C3, and the modulated 465kHz intermediate frequency signal is output by the emitter VT4. The ceramic filter of the circuit has the frequency selection function. The potentiometer RP can be used to adjust the output amplitude. Figure 1 The 465kHz amplitude modulation intermediate frequency signal generator circuit



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