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Created February 14, 2013
Last modified March 11, 2015
Tags 7555   oscillator   variable-hz  


7555 astable oscillator. make tones not war.


This 7555 astable circuit produces a wide range of frequencies without changing the duty cycle. In electronics labs at NYU, we used to connect the potentiometer wiper to pin 5 on the 7555, and the outer pins to voltage and ground, this did not produce as wide a range of frequencies, and the waveform would change duty cycle along with frequency. This made for difficulty measuring frequency response of passive filters.


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