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School/College Quiz Buzzer Circuit using 555 Timer IC

School/College Quiz Buzzer Circuit using 555 Timer IC

Here we have built a Quiz Buzzer Circuit using the versatile 555 Timer IC which is for 3 persons but we can increase the number of participants or players by increasing the no of 555 ICs or by combining two or more ICs together.

circuitdigest.com2017年9月2日

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Quiz Buzzer Circuit using IC 74LS373 - Gadgetronicx

Quiz Buzzer Circuit using IC 74LS373 - Gadgetronicx

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