Three-Decade 15Hz To 15Khz Wien-Bridge Oscillator

Posted on Feb 13, 2013

In this circuit, an LM741 op amp drives a Wien-bridge network using two zener diodes as

Three-Decade 15Hz To 15Khz Wien-Bridge Oscillator
Click here to download the full size of the above Circuit.

an amplitude limiter. Range selection is done by switch selecting the capacitors (CI through C6) and tuning is done via a ganged pot. The output is about 8 Vpp max., depending on the setting of S2 and R6. R4 is set for maximum distortion consistent with stable output.

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