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Audio Oscillator Circuits
Designed by David A. Johnson, P.E.
Last Updated on: Tuesday, October 13, 2009 01:26 PM

Master Category List - Dave's Circuits
 

Dave's Circuits:  Astable Oscillator Circuits             Audio Oscillator Circuits             Crystal Oscillators              
RF (Radio Frequency) Oscillators        Sine Wave Oscillators              Square Wave Oscillators        
Triangle Wave Oscillators          Voltage Controlled Oscillators (VCO)   

CMOS SCHMITT TRIGGER IC MAKES VCO
By changing the supply voltage fed to a classic 4584 Schmitt trigger type oscillator, the oscillator frequency can be changed over a range of 50:1.  A 74HCU04 inverter is used at the output of the 4584 to maintain a constant TTL logic level signal.


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Audio Oscillator Circuits
 
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