FM radio tuning circuit circuit

Posted on Nov 10, 2015

32.FM radio circuit ; FM radio tuning circuit circuit (2) FET circuit in FM radio application tuning circuit is shown in Figure FM radio circuit, which is composed of a high fr

FM radio tuning circuit circuit
Click here to download the full size of the above Circuit.

equency amplifier VT1, VT3 mixer and local oscillator VT2 and other parts of. FM radio antenna sensing signal, the input transformer Li added, rri gate transistor, VT1 high frequency discharge main amplifier device, after it amplifies the FM frequency signal transformer L2 is applied to the gate of the mixer circuit VT3 pole, yrl2 and LC resonant circuit configuration cost local oscillator, the oscillation signal from the oscillation transformer din secondary source sent to the mixer circuit VT3 pole. Mixer circuit VT3 output from the drain, the intermediate frequency transformer IFT (L4) 10.7 MHz IF output signal.

Leave Comment

characters left:

sa   Apr 11, 2020

good circuit

New Circuits



Popular Circuits

Audio Car Stereo Audio Amplifier with TDA1553CQ
use CD-ROM drive as stand-alone audio CD player
Electronic Touch Switch
Multi-functional 100W Power Inverter with 5V USB
Using ADC 0808-ADC 0809 circuit chip consisting
Electronic watchdog circuit