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Musical chime generator with ua741 oscillator

2016-08-15 01:30  
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This is a musical generator that uses bandpass filter circuit withua741op-amp as act converts asound signalin multiple feedback patterns. When connected the voltage input from a rhythm generator with a short pulse , makes it ring in natural resonance frequency. As the output oscillations vanish suddenly and resemble percussion or strum sounds naturally.

The higher the Q the longer the decay time constant. The VR1 is used to adjusts a Q value. The fo is 1/(185 x 1000 x C). The high frequency resonances resemble chimes, lower frequencies sound like calves or bongos. Several circuits, all with different tuning, driven by pluses from a rhythm generator can produce an interesting pattern of sounds.

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