Wien Bridge Oscillator, Gain greater than 3 requirement.

Discussion in 'The Projects Forum' started by ochiboy, Sep 12, 2010.

  1. ochiboy

    Thread Starter New Member

    Sep 9, 2010
    Hello! I was just able to find a working wien bridge circuit, thanks to Multisim....but i have a question, in the circuit below, what exactly is the purpose of the 10k ohm resistor and the two parallel diodes in the figure? will the 10k ohm resistor short out eventually??? I know that it is used to have a gain > 3 at the beginning, then decrease to just 3...also the potentiometer in the figure must be at 40% for oscillation to start....
  2. t06afre

    AAC Fanatic!

    May 11, 2009