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This is an analog circuit that plays a synthesized drum beat. It can be scaled in amount and the quality of the noises.
1 power source 3 breadboards Wires (Yellow, Blue, Red, and Other) if you feel like following conventions 2 Speakers 6 OPA551 Op-Amps 2 TL081 Op-Amps 4 2N3904 NPN ...
It all goes together just like this. It's good to note that we only included a "bass" and a "snare". Prepare a circuit diagram of any other tones ...
This circuit uses a hysteretic oscillator as origin of the "beat". The hysteretic oscillator in this circuit has a frequency of about 1 hertz. The oscillator outputs a ...
Using another hysteretic oscillator, the "bass" sound of the circuit is able to be made. The output of the operational amplifier in the hysteretic oscillator outputs a square ...
Unlike the bass, the "snare" sound in the beat box circuit originates from a white noise generator but is also then amplified by a multiple of 2 by ...
Now that the circuit has a distinctive "base" and "snare" sound, the signals from those are fed into two separate speakers. Each speaker is then connected the collector ...
Congratulations! You've made the circuit! By taking more hysteretic oscillators and filtering out other frequencies, one is able to make new sounds and overlay them on the ones ...
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