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Variable Frequency Sinewave Generator (LF351)

2015-01-01 00:00  
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This article describes the Variable Frequency Sinewave Generator (LF351). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components:LF351.

This sine wave generator is adjustable between 15 Hz to 150 kHz. The circuit is basically a Wien-bridge oscillator, with multiple capacitor selection. Here is the schematic diagram:

single op amp sine wave generator circuit schematic

A stereo 10k potentiometer is used to control the frequency. The dashed line connecting these two potentiometers show that both potentiometer has single axis.


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