Resistor change


Posted on Feb 5, 2014

Resistor change in ECM Mic Preamplifier schematic diagram. The electret condenser microphone (ECM) contains a very sensitive microphone element and an internal FET preamp, a power supply in the range 2 to 10 volts DC is therefore necessary. Suitable ECM`s may be obtained from Maplin Electronics. Although the schematic is drawn showing a three term


Resistor change
Click here to download the full size of the above Circuit.

inal ECM, two terminal ECM`s may be used, the following page in the practical section shows the changes.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Powerful LED Flashlight circuit
    drawing Any idea which software was used to generate these circuit diagrams
    op amp Why does this current limiter circuit oscillate
    jung schematic
    synchronized multi spark
    MAX668 16V 4.4A switching power supply circuit design electronic project
    Proximity detector schematic



    Top