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THREE_DECADE_15_Hz_TO_15_kHz_WIEN_BRIDGE_OSCILLATOR

2016-05-15 11:24  
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THREE_DECADE_15_Hz_TO_15_kHz_WIEN_BRIDGE_OSCILLATOR
In this circuit, an LM741 op amp drives a Wien-bridge network using two zener diodes as an ampli-tude limiter. Range selection is done 'oy switch selecting the capacitors (C1 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.