RF detector electronic project circuit design using 2N2222 transistors


Posted on Feb 4, 2014

This electronic rf detector electronic project is designed using common transistors and other few common electronic parts. This rf detector responds to RF signals bellow the standard broadcast band to well over 500 MHz and provides an visual, and audible indication when the signal is received. By adjusting the bias of D2 with the R2 potentiomete


RF detector electronic project circuit design using 2N2222 transistors
Click here to download the full size of the above Circuit.

r the circuit can detect low power or strong signals. The circuit can be powered using a simple 9 volts battery or any other 9 volts DC power supply circuit. If the rf detector is not enough sensitive you can connect a good wideband RF amp between the antenna and the detector diode. Keep diode and capacitor (C1) leads short to minimize stray inductance. The used transistors can be : 2N3906, 2N2907 or other PNP high gain transistor for Q2 and PN2222A, 2N3904 or other NPN high gain transistor for Q1.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Mosfet 75W Power Amplifier
    Wireless-video-camera-link
    TA8210AH - 2 x 22W BTL Car Amplifier Circuit
    Simple Power Saving Devices
    current limiter circuit diagram
    Simple optical switchs
    ac switching question
    Modular Burglar Alarm Project
    Darlington phototransistor type light control switch circuit diagram sensitive application



    Top