The function generator composed of 555 timer

  
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The chart shows a function generator circuit composed of 555 timer. The circuit consists of a CH7555 timer and some transistors and RC components. It can generate triangle wave, square wave, sine wave, sawtooth and square wave sweep simultaneously. Ramp can be positive or negative. The frequency of various waveforms is adjustable from 0.1Hz ~ 100kHz, the amp..
The function generator composed of 555 timer - schematic




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