Grid Dip Oscillator (GDO) Instrument


Posted on Feb 5, 2014

This is a grid dip oscillator (GDO) circuit developed by Luigi Falcone. This circuit uses seven plug in coils covering 3. 0 to 30Mhz. This circuit can be connected to the a frequency meter by using The coaxial socket J2. The figure below shows the schematic diagram of the circuit and the coil information: DC amplifier is formed by TR2 that permit


Grid Dip Oscillator (GDO) Instrument
Click here to download the full size of the above Circuit.

the use of a 1mA FSD meter. R7 is used to control the sensitivity of 1mA FSD meter. a field strength meter/RF sniffer is formed by the instrument with TR1 switched off (via S2). The coils are wound on Teflon formers with two female  sockets which plug-in to two male  sockets on the instrument. [Source: qsl. net] We aim to transmit more information by carrying articles. Please send us an E-mail to wanghuali@hqew. net within 15 days if we are involved in the problems of article content, copyright or other problems. We will delete it soon.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Test Signal Generator
    Transceiver for 20 m band
    Minimal metal detector
    Digital temperature measuring
    Tron Disc with .NET Microframework
    UHF amplifier circuit
    A muting delay & DC offset protection circuit



    Top